Heat-shrinkable cambric. Everything about cambric as a fixative and artificial bait

Fishing cambric- one of the types of inexpensive elements of equipment, the purpose of which is not only to fix parts of fishing equipment, but also for fishing, as it is used as independent bait for many freshwater fish.

This simple tube made from scrap materials in an advantageous combination of colors allows you to bring a good catch both during summer fishing and in winter.

What is a fishing cambric, how to use it not only for the purpose of fixing, but also as bait - read in this article.

1. What is a fishing cambric

Cambric for fishing:

• this is one of the types of fishing fasteners, which is a short piece of tube made of plastic, silicone, nipple, thin elastic band or other material through which a fishing line is threaded;
• This is an independent bait for catching many freshwater fish.

Fishing cambric has a number of advantages:

• durability, as it is not subject to rust, rotting or the influence of other natural factors;
• reliability;
• elasticity;
• protects the fishing line from injury.

2. Why are cambrics needed in fishing?

Thanks to the silicone cambric, the angler can attach the sinker with any weight.

Also, this element is often used as bait, imitating the appearance of bloodworms and other invertebrates; well-chosen colors of cambric for fishing can increase your chances of a good catch.

This simple fishing device can also be used as a nod to the whip of a winter fishing rod, when two cambrics are connected to each other (one fits into the other) and fastened with a nod plate.

Here you can find a selection that we found on the aliexpress website. Thanks to this catalog, you can reduce the cost of installing gear by 2, and sometimes 5 or more times. You will find a detailed description of various products, their characteristics and justification for the benefits of purchasing them. And if you spend 10 minutes and learn how to use, you can additionally save up to 15% on all purchases in a Chinese hypermarket.

3. Types of fishing sets with cambrics

In the store, cambrics for floats and others are presented in the following sets for fishing:

4. Size (diameter) of the cambric

Another interesting point is a trick. Often anglers catch perch using the following setup: a Tyrolean stick, 2 or 3 hooks with, or just colored threads and a weight. Regardless of the method of attaching the leashes, it happens that when there is a current, the leashes and fishing line get tangled and form a beard. So, in order to avoid this trouble, experienced fishermen resort to this trick: a cambric is tightly placed on the prepared main loop of the fishing thread, with a section corresponding to the fishing line and such a length that it would cover the fishing line, leaving free a small section of the loop (the place where the loop enters leash). This manipulation will prevent the leash from getting caught in the loop of the main fishing line.

6.3 Catching roach using cambric

Spinning asp fishing using cambric equipment is one of the most catchy and cheapest types of fishing, which has been practiced for dozens of years.

Equipment diagram

The wood used is an ordinary chock, pre-painted in a color that would not repel fish. Lead is attached to avoid tangling of the fishing line. 2-3 cambrics are installed. A large number of cambrics can lead to problems when casting bait. It is advisable to use a spinning rod that is convenient for long-distance casting, since the asp is a cautious fish and does not allow close range. It is better to use it because of it, since the fish bites are strong. choose 0.25 mm or 0.30.

You should pay attention to 2 types of wiring when fishing with a cambric:

1. The rod is held so that the cambrics drift on the surface of the reservoir, bouncing and releasing bubbles in the water.
2. After lowering the bait into the water, a quick reeling occurs until the asp is hooked; as soon as the bite is noticed, the reeling slows down and the angler waits for the fish to attack again and be hooked.

6.4 Catching roach with cambric

Preparing cambric equipment for roach is as follows:

1. Take 3 pieces of cambric and place them on a fishing hook (No. 18-10). The casings on the hook should slide freely, but not slide; to do this, they are secured with a clamp of a smaller diameter or a fishing bead (yellow or white).
2. The fishing line used is thin (about 0.1 mm) for better glide of the nozzle through the water.
3. The rod is selected with rings and, which will take on all the work at the time of landing the fish. Its length should be at least 3 m, and its weight should be as light as possible, since the fisherman needs to constantly hold it in his hands and play with the equipment.
4. is installed in accordance with fishing conditions, and its installation is carried out at two attachment points. It is loaded with pellets so that only the tip of the float antenna peeks out from the water.

Cambric roach fishing technique:

1. The equipment is lowered into the water at a distance of 5 to 10 cm from the bottom.
2. As soon as the fish is hooked (the float will sink), it must be hooked immediately.
3. In order not to miss the X-moment, you need to monitor the fishing line so that it does not drift chaotically through the water through constant reeling.

7. DIY float casing

So that you are not tormented by the question of where to get a cambric for a float or weight, we have prepared for you this video from the “kembrik” channel, after watching which you can not only make a catchy cambric with your own hands, but also learn how to paint it

8. Useful links

— a detailed and interesting article about preparing equipment for asp fishing;

— article about cambric fishing;

http://burbot.ru/index.php?option=com_content&task=view&id=462&Itemid=65 - how to make a cambric with your own hands;

https://ulfishing.ru/forum/viewtopic.php?f=6&t=4381 - conversations among members of one of the Israeli fishing forums about cambrics for perch.

Proper insulation of electrical wiring is a guarantee of safe living in the living space and the use of household appliances in everyday life. For this purpose, special twisting, soldering and crimping were developed. These consumables allow you to create contact between electrical conductors. Thanks to such measures, it is possible to avoid electric shock and short circuit.

A popular insulation is a plastic tube made of polyvinyl chloride. The scientific name of this material is cambric. According to physical law, a rubber surface does not conduct electric current.

What is cambric?

In simple terms, a cambric is a short piece of plastic tube that is made from components with a high degree of resistance. More than ten years ago, only hard models of the material were available for sale. They were selected according to the size and diameter of the electrical wire.

Today, heat-shrinkable casings are in particular demand. As the rubber surface heats up, they decrease in size several times. In addition, the insulating material changes its structure and reliably fixes the connections of the conductor circuit.

The diameter of the cambrics is selected in accordance with the number of cores in the wire. The greater their number, the wider the connecting hole should be.

Modern products help prevent corrosion of metal elements. Tubes made of durable rubber are affordable.

Types of consumables

There are several types of cambrics. They differ in their composition and scope of application. Insulating materials are divided into:

• ordinary (heat-resistant);
• thermodependent.

The usual ones are pieces of plastic tubes that consist of polyvinyl chloride. Available in several colors and diameters. They are also called PVC cambrics. They are designed for insulating multi-core wires.

Heat shrink products are made from special cotton paper and fiberglass. Their surface is covered with a special resin. Fiberglass cambrics require heat exposure.

Under the influence of high temperature, they begin to melt. As a result of this, a dense plastic shell is formed at the junction. In the future, it prevents the semiconductors from coming into contact with each other.

Most often they are used for electrical networks where the voltage does not reach a direct current level of more than 1000 W. In addition, this insulation is used for electronic boards. They help make adhesions at joints. The cambric acts as additional protection. It prevents bending, corrosion and mechanical damage to wires.

Heat-resistant cambrics are a tube of one size and a fixed diameter. To ensure strong insulation, it is recommended to carefully select the wire parameters. For example, if the thickness of the conductor is significantly less than the size of the cambric, then the insulator will not fit tightly to the solder surface. This increases the risk of short circuits and premature failure of the device.

The main disadvantage of heat-resistant insulation is that it practically does not stretch, unlike heat-shrinkable insulation. If used incorrectly, the rubber casing may burst, thereby increasing the risk of a sudden surge in electricity.

Which type of cambric is better?

When going to a specialized electrical goods department, many consumers often ask the question: “Which wire casings are best to use?” The right choice largely depends on what type of insulation you plan to perform. For example, in order to prevent short circuits on electrical boards, it is necessary to choose heat-shrinkable material. It tightly fixes the area of ​​interaction of parts.

When exposed to high temperatures, it begins to melt, thereby creating resistance in the area of ​​open sections of the conductor circuit. The diameter of the heat shrink tube should be 2 mm larger than the thickness of the wire.

For electrical appliances with high temperature conditions, it is necessary to choose heat-resistant insulators. They have thermal protection and high-quality insulation.

The advantages of consumable thermal material include:

• wide temperature range. These products can be used at different levels of an electrical circuit;
• safe composition. During the heating process of the plastic surface, no toxic substances are released that negatively affect human health;
• long service life;
• does not come into contact with chemical components. As a result, the risk of premature equipment failure is reduced;
• Excellent resistance to corrosion of parts and oxidation of metal surfaces.

Modern models of heat shrink material have an additional substance in the inside of the tube. When heated, it increases the adhesive ability of the plastic. Thanks to this, the connection point has a good seal. The heating temperature of the insulator surface is 60°C.

Ordinary cambric also has good electrical insulating ability. To do this, you need to choose the right size and diameter of the rubber tube. The main advantage of this product is its repeated use. If a crack appears on the surface of the product, its further use is prohibited. In addition, it has a low cost.

Heat-resistant insulators are often used in the design of an induction furnace, oven or drying chamber. It protects the place where semiconductors are fixed in the electrical circuit and reduces the impact of high temperature on device parts. You can mark adhesions on its surface.

Technical characteristics of heat-resistant material include:

• electrical impermeability. This type of insulator practically does not conduct electric current;
• The wall thickness of the product reaches from 2 to 2.5 mm. This makes it possible to create a strong barrier on the electrical circuit;
• fire resistance;
• large selection of tube diameters;
• high level of temperature exposure. It is used in areas of the electrical circuit with temperatures from -55 to 600 °C. The photo of cambrics shows models of insulating material.

Photos of cambrics

In electricity, the main thing is good contact and reliable insulation. Often the former depends on the latter. For insulation, you can use insulating tape, but over time the properties of the sticky coating are lost and it can unwind and come off the cable under mechanical stress. A cambric is a PVC or rubber tube with good dielectric properties, most often white, beige or cream in color. From the article you will learn what cambrics are needed for and what they are, as well as how their types differ.

What is cambric used for in electrics?

The main task is to insulate electrical cables, but people have come up with a lot of other uses, from the role of covers for screwdrivers and awls, to use in fishing gear. (already prohibited by the PUE), soldering, welding, bolts, sleeves, as well as wires terminated with terminal lugs must be insulated. Most of these connections can be fitted with a cambric. For additional fixation and protection from moisture, the edges are fixed with electrical tape, and if one of the edges is free, it is heated with a lighter and squeezed with pliers.

In addition to insulating the connections, you can restore the insulating layer of the wire using cambric, securing its edges with electrical tape so that it does not move. This type of insulation is suitable for DC and AC circuits up to 1000 V.

An additional function is marking. A black felt-tip pen or marker is clearly visible on light cambric. In any circuits, both power and signal and communication lines, a casing with the designation is placed at the ends of the cable near the terminal.

Cambrides come in different sizes; select products that are a couple of millimeters larger than the diameter of the cable, otherwise it will constantly fall off or not fit. If you try to stretch it to the required diameter, it may burst, because... There is almost no size reserve for this product. They do not have this drawback. In addition, PVC pipes dry out and crack when heated, and become very hard in cold weather.

Heat-shrinkable tubes - shrink when heated

Although a heat-shrinkable tube or cambric performs the same tasks, it differs from the usual one both in the method of application and in the material from which it is made. Typically these are polyethylene and other polymers.

Heat shrinkage when heated can decrease by half. This advantage allows the same tube size to be used for a much larger range of wire sizes. This gives a definite advantage when used as insulation for various kinds of terminals and connections, because the shape of the terminal strip does not affect the quality of the covering. The heat shrink will shrink and follow any contours.

Heat shrinkage stretches well, up to 1.5-2 times its original value, but this must be done carefully, ensuring the integrity of the surface. This way you can stretch heat shrink onto wires and terminals if you don't have the size you need.

The next difference from heat-shrinkable PVC tubes is their appearance - they are sold in any color, including completely transparent or with color. This opens up even more conveniences for marking, for example, the wires of one group are divided by color and labeled by contact. Like regular cambrics, these products are inexpensive, but they can be found in every electrical or household goods store.

How to use cambric

Ideally, shrinking should be done with a stream of hot air. Any hair dryer is suitable for this. But more often it happens that it is not at hand or there is nothing to connect it to.

The second option is a soldering iron. Walk the heating element casing over the surface of the tube and it will shrink. The stinger does not need to do this for three reasons:

1. Too high a temperature can melt the cambric.
2. The sting leaves traces of soot.
3. So as not to spoil the sting.

The third option is to use fire sources. This could be matches or a lighter. Keep the flame a couple of centimeters from the heat shrink, so as not to damage it, walk with quick and short movements on all sides to achieve uniform contraction of the insulating layer. For a quick effect, you can do this directly with the flame, then the movements should be even faster, and you should be more attentive. The disadvantage of this method is that traces of burning may remain on the cambric. Turbo lighters do not have this drawback, but the flame temperature is very high and it is easy to burn the pipe, so keep the flame stream away so that only streams of hot air hit it.

The video example clearly shows how to use casings for wires:

Heat-resistant insulation - what is it?

Fiberglass tubes are a type of cambric that is resistant to high temperatures and can withstand temperatures from -60 to 510 degrees without problems. Fiberglass is impregnated with varnishes to improve electrical insulating properties. Such designs are often found in electric kettles, heaters, electric stoves and similar equipment. They are put on the supply wires and wires of internal connections near heating elements and spirals. Heat-resistant wire casings protect the contacts from temperature, thereby reducing the likelihood of corrosion and weakening, as well as melting of the insulation. They cost more than others, so their use everywhere does not make sense.

Alternative uses. Do-it-yourselfers and radio amateurs use heat-resistant fiberglass tubes for insulation, burners and similar devices. For example, they are put on the tip under the spiral to prevent inter-turn short circuits. During operation, the varnish burns, after which it continues to perform its tasks and does not burn out.

Wire casings are, in some cases, better suited for insulating conductors and joints than insulating tape. Their price and ease of use make it possible to increase the quality, safety and durability of electrical devices and circuits. Of course, this is an essential consumable for an electrician, it looks more aesthetically pleasing than electrical tape, and is more reliable in some cases, but it is better to use both in pairs.

Electrical wiring must be safe. This is one of the main conditions for its operation.

At the connection points, contact failure, overheating or even fire most often occur. Therefore, it is at these points that reliable insulation is especially important. Reliability can be ensured by insulating wires with heat shrink. This type of protection has many more advantages compared to other types of connection insulation.

What is Heat Shrink Tubing

(HERE) is a thin-walled tube made of polymer materials that can be compressed under the influence of high temperatures without collapsing. It is this type of tube that has found wide application in everyday life and is often used by home craftsmen.

Heat shrink for wires, the dimensions of which can change significantly when heated, is good because it fits tightly, without voids, at the junction of electrical wiring elements, and does not create unnecessary thickening, like, for example, ordinary electrical tape. However, this is not the only advantage of tubes made of polymer materials.

Benefits of Heat Shrinking

Heat-shrinkable tubing, compared to other methods of insulating conductive wires, has several more advantages.

Firstly, since it fits tightly, it does not move under various mechanical influences. Secondly, it is installed quite simply. Thirdly, after shrinking, the tube material becomes stronger, giving additional mechanical stability and rigidity to the place. In addition, it retains its properties for a long time, much longer than the same electrical tape.

Disadvantages of Heat Shrinking

The only drawback of heat shrink for wires, the dimensions of which change irreversibly when heated, is the impossibility of reuse after dismantling, since it is impossible to remove it without damage.

The price of heat-shrinkable tubing is higher than the price of regular insulating tape, but not so much as to become a decisive factor when choosing an insulating material.

Other possible shortcomings are, rather, shortcomings of a particular manufacturer.

Properties of Heat Shrink Tube

The main property of the tube, which determines its use, is the ability, by changing the diameter and thickness, to compress under the influence of high temperatures in the range of 80-120°C. Tubes whose initial heating temperature is not higher than 70°C are used in radio electronics.

It features a heat-shrinkable tube and a wide range of operating temperatures ranging from -45°C to +125°C. There are materials with even higher operating temperatures, up to 135°C. They are used in the automotive industry to insulate connections in the immediate vicinity of the engine.

The standard color is black, non-standard - red, green, blue, yellow, white. Transparent heat shrink tube is used in places where it is necessary to monitor the condition of the connection.

Main characteristics

Depending on the properties of the polymer, the ability to shrink, which characterizes heat shrink for wires, also changes. The dimensions of the tube can be reduced by half or even six times. The shrinkage ratio usually varies from 2:1 to 6:1.

Another characteristic is the presence of an adhesive layer. Heat-shrinkable adhesive tube is used in cases where contact connections need to be reliably sealed and protected from moisture and corrosion. In addition, hot melt adhesive on the inner surface of the tube gives additional strength to the connection.

Characterizes heat shrink tubing and resistance to light and aggressive environments. The material can be chemically or oil- and petrol-resistant, light-stabilized (resistant to ultraviolet radiation) or with a photoluminescence effect.

Heat-shrinkable tubes differ in polymer composition. They are made from PVC, polyolefins, elastomers and other materials, on which resistance to ultraviolet rays or fire, mechanical properties and color solutions depend.

For different connection requirements, tubes with similar characteristics can be produced, either in black or in transparent polyolefin. The color scheme is also a characteristic of heat shrink for wires.

Application area

Heat shrink tube (HERE) can serve not only to insulate the wires of an electrical circuit, although this is its main purpose.

It seals and protects against moisture, chemical corrosion, dirt and mechanical stress. The tube protects the wires from deformation and protects kinks.

It can be used to restore damaged insulation and sheathing of cables and wires, and to tie together bundles.

Heat-shrinkable tube, the dimensions of which allow you to put a small ring cut from it on wires of any thickness, comes in a large number of colors, so it is very convenient for marking. For example, a piece of red tube is placed on the end of the wire over the insulating layer, and this means “plus” in a DC electrical circuit. A black ring is installed on the minus, a yellow-green ring is installed on the ground, and red, yellow and green for the corresponding phases.

A thin heat-shrinkable tube that can withstand fairly high operating temperatures is convenient for repairing the on-board electrical network of a car, installing alarm systems, car radios and speaker systems.

Multi-colored tubes made of polymer materials are used for decorative purposes and for repairing household appliances and electrical wiring.

Heat shrink tubing sizes

All manufacturers label their products. The main parameter that distinguishes any heat-shrinkable tube is the diameters before and after shrinkage.

Usually the internal diameter before shrinkage is indicated first, and after the fraction - either the diameter or the coefficient by which it can be calculated. The most common is the standard 2:1 ratio.

Asian and Russian manufacturers produce tubes with a diameter that is a multiple of 0.5 mm or 1 mm. European manufacturers indicate diameters in inches, so when converted, the diameter is, for example, 1.6 mm or 4.8 mm.

If two tubes of similar diameters are suitable, you need to choose the larger one.

Heat-shrinkable tubing can be sold in one-meter pieces or, which is inconvenient for home use, in coils of 25, 50, 100 or more meters.

Types of Heat Shrink Tubing

Diameter before and after shrinkage and length are not all the geometric parameters that characterize a heat-shrinkable tube. Its dimensions also include thickness before and after heating.

The thickness of the tube can be divided into two types:

Thin-walled, the wall thickness of which after shrinkage does not exceed 1 mm. They are the most popular, including for household use. Colored, black and transparent tubes without an adhesive layer (shrinkage ratio from 2:1 to 4:1) are used not only for insulating wires, but also for marking. As a rule, they have heat resistance, a relatively low shrinkage temperature, increased resistance to sunlight and suppress combustion.

Thick-walled and medium-walled adhesive, the wall thickness of which after shrinkage is from 1.5 to 4.5 mm (shrinkage ratio from 2:1 to 6:1) are used for insulation and moisture protection of objects with a large difference in diameters, high-voltage cables, corrosion protection not only electrical contacts, but also steel pipes, sealing contact couplings.

Mechanical characteristics

Since the main task that a heat-shrinkable tube must perform is electrical insulation, the main characteristic is its dielectric strength, which must be at least 20 kV/mm. The strength characteristics of the material are also important. Tensile strength should not be less than 1.0 kgf/sq.m. mm (9.81 MPa), and the relative elongation is not less than 200%. The most durable is heat shrink for wires, the dimensions of which decrease six times when heated, its tensile strength is already more than 14.5 MPa.

In many cases, heat shrink tubing must ensure tight connections, so another characteristic is important - equilibrium water absorption. It should not exceed 0.2%.

Preparation for installation

The process does not require any special tools. You need a sharp knife or scissors to cut off the required pieces of tube without burrs and some kind of device for heating the tube. used by professional electricians who install a large number of connections. A home craftsman can easily make do with a gas torch or a regular lighter, the flame of which is quite enough to heat up the heat shrink for the wires.

Dimensions are more difficult to find. The initial diameter is important in order to fit the tube onto the wire connection without interference. The shrinkage factor or final diameter, which must be less than the diameter of the connection, must be known to ensure tightness and reliable protection.

And the greater the shrinkage, that is, the higher the coefficient, the greater the thickness of the tube, and therefore its strength after heating.

Heat shrink installation

So, a suitable thin-walled heat-shrinkable tube was selected based on its properties and dimensions. How to use it to insulate wires? First, you need to cut a piece from it so that it covers the length of the area that needs to be insulated, taking into account longitudinal shrinkage when heated. It is 5-10% and is also indicated by the manufacturer. There should be no burrs or deep damage on the cuts and surface of the cut tube so that the material does not collapse under the influence of high temperature.

First, the tube is put on the wire, then the connection is made on which it should be put on. After this, it is heated from one edge to the other, so that there is no large longitudinal shrinkage, or from the middle to the edges, if the section is long enough.

You cannot heat the tube at both ends at the same time - air bubbles may remain under it, which is undesirable, and wrinkles may form on the surface.

The tube must be heated evenly, making sure that there is no overheating, charring, ruptures or bubbles on its surface.

The temperature and heating rate are determined experimentally. There is no need to rush, especially if you have no experience in such work. Too high a temperature or heating rate may cause defects.

The work takes a little longer if the operating conditions require an adhesive heat-shrinkable tube. How to use it to seal a joint? First you need to prepare the wires or products to be joined: clean the sharp edges, clean and degrease the surfaces, as with normal gluing. The tube must be heated from the middle to the edges.

Heat shrink tube prices

It is impossible to name a specific price range. The cheapest heat shrink tube, the price of which is a little more than three rubles, is usually a black thin tube with a diameter of 2 mm, the shrinkage ratio of which is 2:1 and the wall thickness is 0.6 mm, made in Russia or China.

Prices depend on the manufacturer, size, presence of an adhesive layer, color, and other additional properties.

Thick-walled heat shrink for wires, dimensions 230x4.8 mm, with an adhesive layer, with a shrinkage ratio of 6:1, black from the world-famous German manufacturer ACS already costs more than 160 euros per meter.

It is not difficult to learn how to install heat shrink tubing at home. It can reliably protect wire connections, terminal installation locations and other elements. But this material can be used for a wide variety of purposes, as much as your imagination can handle. For example, for decorative finishing of metal products, rubberizing rollers or sealing holes during repairs.

Any electrical network contains many different connections. If the connections are made poorly, the performance of electrical appliances may be affected, and there is also a risk of electric shock to a person.

Recently, manufacturers have filled the market with various types of consumables for electrical networks. This makes electrical work faster and more efficient.

The purpose of such a consumable is to insulate the exposed wire and protect a person from a short circuit. This material includes cambrics for wires. This invention is a tube of various diameters made from rubber or PVC.

What are cambrics used for?

The main purpose of this product is to insulate electrical cables. Connections created by soldering, bolts, welding, sleeves must be insulated. This can be done using cambrics. To protect the connections from moisture, secure the edges with electrical tape. The free edge is heated and crimped with pliers.

Cambrics are also capable of reproducing an insulating layer. This insulation is suitable for DC and AC electrical networks up to 1 kV.

In addition, the color range in which the cambrics are made allows for wire marking. So, at the ends of the conductors near the terminals, products are placed and marked with the appropriate designation.

You need to choose a 2 ml cambric. larger than the cable cross-section, otherwise it will not fit, or, on the contrary, will fall off.

Types of cambrics

There are two main types of cambrics: cambrics made of PVC and heat-shrinkable tubing. In turn, the latter are divided into:

• high-voltage - have high resistance, are used at high voltage;
• fluorescent - have a glow, used in buildings with limited lighting;
• with a corrugated surface - used where slipping needs to be eliminated;
• Teflon - expensive consumables, used at high temperatures, resistant to combustion and chemical environments.

Cambrics made from polyvinyl chloride do not expand either in width or in length. When choosing this type of product, you must carefully select the diameter corresponding to the cross-section of the wire. Otherwise, when insulating a wire with a large cross-section, the cambric may simply burst.

In addition, this type has its positive qualities: the possibility of reuse, endurance of chemical environments, resistance to various temperature conditions, durability in use, and the product has a low cost.

When choosing heat shrink tubes, you need to pay attention to the shrinkage coefficient. Frequently occurring tubes have a ratio of 1:2, 1:3, 1:4. This means that they have the ability to shrink two, three or four times. A distinctive feature of this type is the provision of electrical network contacts with reliable insulation and durable fastening.

When using them, there is no need to purchase tubes with the exact diameter. This type is endowed with such qualities as protection against corrosion and moisture. The inner side of the heat shrink is covered with an adhesive layer. During the shrinking process, the glue evenly fills all the irregularities.

Heat resistant insulation

These tubes are made from fiberglass. They are able to withstand temperatures from -60 to +150 degrees. For better efficiency, the tubes are impregnated with varnish. They are mounted on the wires of internal connections. This method is suitable for household appliances: heaters, electric kettles, electric stoves.

Protective properties prevent connections from high temperatures, melting, and corrosion. This insulation method is quite expensive, and as a result is not used everywhere.

Heat shrink sleeves

These types, unlike other cambrics, are made of polyethylene or other polymers. When heated, such tubes can shrink by half. With this positive point, it is allowed to use the same size for a larger wire diameter.

When using cambric as insulation, it is possible to insulate various terminals and connections, since the shape does not affect the properties of the covering. The shrink sleeve will copy and cut for different contour.

In addition, heat shrink is highly stretchable, but this must be done with caution. If you do not have the required diameter at hand, the tube may be pulled over terminals and cables of a larger size.

Also, this type of cambric is available in colored and transparent versions, this allows you to sort the wires according to their intended purpose.

Heat-shrinkable tubes have a number of positive qualities: when ignited, heat-shrinkable tubes practically do not release harmful toxic substances; ability to withstand high temperatures; do not interact with chemicals; unlike electrical tape, they have a long service life; eliminate corrosion and oxidation of contacts.

Heat-shrinkable casings are in demand among specialists, and purchasing them is not difficult.

When exposed to hot air, it shrinks well to the necessary connections in the electrical circuit. This can be done using a hair dryer, matches or a lighter. You can also use a soldering iron, but this must be done with caution so as not to damage the tool.

In what cases is it permissible to use cambrics?

In addition to the use of tubes in electrical networks, this product is used to insulate soldering irons, burners and other mechanisms to prevent interturn short circuits.

Cambriks can easily replace electrical tape. They make contacts more durable and reliable. They are also easy to use, and the connections have a more aesthetic appearance.

In addition, cambrics are in great demand in fishing. When used, the floats and hooks are secured to the insulating tube. And also some fishermen have learned to fish with such tubes, using them as bait.