Guide to choice and use: how to choose the thermoretractable sheath ?
by ratio, thickness, with resin, size, color, packaging.

Choice by coefficient of retreint (ratio 2:1 3:1 4:1 6:1), thickness, with or without adhesive, colors, size, packaging by reel, bar, sleeve, meter.

How to choose and use the thermoretractable sheath using the thermoretraction guide?

1. Choose the type of wall of the sheath according to your use, from the thin and flexible wall to the thick and watertight wall from 0.33 mm to 4.3 mm (see detailed sheets for finished thicknesses).
2. With or without adhesive, to ensure perfect sealing, choice according to the operating temperature 105°C, 110°C, 135°C, extinguishable car sheath.
3. Then choose the retreint coefficient (2:1 to 6:1), this corresponds to the ratio between initial and minimum diameter, for example a 12/4 mm sheath , Ø 12 mm initial front retracted and Ø 4 mm at the minimum retracted, corresponds to a retract of 3:1.
4. As a reminder, if you are looking for the sheath circumference, it is enough X the diameter by 3.14, for example a sheath with a diameter of 12.7 mm at a circumference of 38.93 mm
5. You then have a color choice (black, blue, red, green, white, yellow, brown, grey, transparent, yellow green, orange)
6. Then choose the packaging according to the types, sleeves, tubes, bars, coils, dispenser boxes, assortment box without adhesive, assortment box with adhesive, black thermoretractable sheaths and colors in meter
7. On request large diameter sheath up to 1000 mm
8. Attention all the dimensions indicated are the useful inner diameters, and NOT flat, see our table of equivalences, for the conversion of dimensions diameter to flat

Thin wall sheath - Glossy thin wall - ratio 4:1 Thin wall Thick wall
Waterproof shrinkable cap - braided tubing - Orange heat shrink tubing

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Heat-retractable, thin-walled sheath (small)

Applications: industrial, tracking, identification, dressing, electrical insulation, cable protection, waterproofing, insulation of welded points, insulation and shell protection and connectors, light gain. . The transparent thermoretractable sheath protects, isolates or seals while clearly showing the support or marking mark.
Guide to Thermoretractable Sheath Sizes find your size in one click

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Type PF2-135					Type PF3-135		Type PF4-135
Ø 0.6 to 152.4 mm					Ø 0.5 to 39 mm		Ø 4.6 to 50.8 mm
reel ratio 2:1		1.22 meter sleeves			reel ratio 3:1		ratio 4:1
Black	Yellow	Black	Yellow		Black	Yellow	Black
Red	Blue	Red	Blue		Red	Blue
green	brown	Green	Brun		Transparent natural	White
white	green-yellow	White	Green yellow				High temperature PTFE gauge (260°;C) and high chemical resistance
Transparent	Grey	Transparent	Grey		Black	Transparent crystal clear
Orange	Violet

Need several diameters? discover our assortment boxes

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Single and thin wall with adhesive waterproof thermoretractable sheath					Medium and thick weight Applications requiring high mechanical resistance.
Thickness 1 to 2.5 mm by diameters					Thickness 2 to 3 mm Ø 3 to 275 mm	Thickness 1.2 to 4.3 mm Ø from 3 to 200
Dual wall with adhesive					Medium wall tube Type PM4	Thick wall tube Type PE4
					Applications requiring high mechanical resistance and sealing
Ratio 3:1 Type PF3-A		Ratio 4:1 Type PF4-A			Medium wall tube with adhesive Type PM4-A	Thick wall tube with adhesive Type PE4-A
Ø 1 to 39 mm		Ø 1 to 52 mm
Black	transparent	Black	Transparent		Need any advice to choose ?

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Complete catalogue with technical data sheets

Cable pack with adhesive (cold heat)

Braided Sleeve

Heat Shrinkable Repair Sleeve

Matching box black and color

Matching box sheath with adhesive

Thermo-weld sleeve for online splice

Waterproof sleeve

Waterproof self-supply connector

Fixing collar rilsan Installation stickers

self-fusing repair tape Xtreme

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How to put in place the thermoretractable sheath (thermal shrinking)

1. Cut the desired length, foresee a longitudinal narrowing of 5-7 % (tube length)
2. See the technical data sheets to know the retreint temperature of the sheath, it is best not to use flame, but rather a flame gun thermal or suitable oven, we offer a range of gun hot air suitable for the installation of thermoretractable sheaths and products, no electricity, think about gun wireless heating
3. Heat evenly over the outer diameter and over the entire length of the sheath, not overheating, the sheath will lose its characteristics, let the sheath cool slowly.

Discover our solutions custom printing of heat shrinkable sheaths

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Electric insulation extinguishable heat shrinkable sheath High temperature thermoretractable sheath, very high chemical resistance