» Intl Tel: +44 1706 522 611
Heat shrinks come in various temperture and forms
of flexibility formats from PVC through to
higher the temperature equals higher the costs for
that particular polymer for heat shrink tubing.
Layflat PVC -20C to +85C
PVC -30C to +105C
Polyolefin -55C to +135C
Low Smoke -55C to +125C
Elastomer -75C to +150C
Kynar -55C to +175C
Viton -55C to +200C
Viton plus -55C to +220C
PTFE -70C to +260C
Example : If the substrate to be insulated is OD 6mm
at temperatures of +200C then using either a
or PTFE material fits the bill for your needs.
When cutting these polymers to the desired length,
special care has to be taken to ensure smoothly
cut ends with sharp cutting equipment as poorly
cut edges can cause the material to split during
When heat shrinking,
is advisable to always start
from the middle working outwards so the polymer
grips the area to avoid slipping and gradually
proceed to one end and then from the middle again to the opposite end, which avoids air being
trapped under the tubing and by starting from the middle stops the tubing from slipping along the object being insulated.
Beware, these polymers will also shrink longitudinally
(horizontally), you could be looking at shrinkage from +/-5% to +/-15% this has to be considered when cutting.
By shrinking the ends first and then the middle section,
using this method has problems as air gets
trapped and prevents the middle section from fully shrinking.
If the object to be covered is Metal or Conductive, care must be taken to ensure the metal is
pre-heated to avoid cold spots as this will give an unsightly appearance of the tube.
If after going through all this, you are still struggling to find
a suitable heat srink for your application, contact us as we just might be
able to offer something less costly to use more successfully.
PTFE Polymers Non heat shrink tubing
Consider either a Tubing or Sleeving to BS2848 Type 6
Class 250T, Conduits (PANAVIA 6627, 6628) including
Smooth bore, Crush resistant, Spiralwrap AS41088.
Heat Shrink Tubing Cross Reference
& 3:1 Polyolefin
flexible, thin wall, flame retardant
operates at -55 to +135C.
2:1 & 3:1 Polyolefin (2:1 EMS2, 1.2 to 152mm)
(3:1 EMS3, 1.5/0.5 to 40/13mm)
3:1 & 4:1 Adhesive (Glue) lined
Polyolefin tube, with dual wall inner adhesive
(glue) lining, flexible and in a thin wall.
3:1 & 4:1 Adhesive lined 3 to 52mm
LSZH Polyolefin have no added halogens for
LSOH Thin wall & LSZH medium wall.
2:1 LSOH & LSZH, ID 1.2 to 102mm
Speciality Heatshrink tubing in
PVC, Elastomer, Kynar, Viton, PTFE Polymers
2:1 PVC, -30 to 105C
2:1 General purpose, thin wall, UL is ideal for
electrical busbar distribution centres, handles,
ropes, chain applications.
2:1 PVC - 3.2 to 101.6mm
2:1 Elastomer, -75 to +150C
2:1 Cross-linked flexible Chlorinated Elastomer
designed for areas that need protection against
abuse at high tempertaures.
2:1 Elastomer, 3.2 to 76.2mm
2:1 Kynar (PVdF)
2:1 Kynar, a super thin wall, tough, chemical
resistant, semi rigid polymer.
2:1 Kynar, 1.2 to 25.4mm
Viton, Co-polymer of Vinylidene & Hexa fluoro
propylene, a premium grade, withstands chemical
attack, oil & diesel resistant.
2:1 +200C Viton, 3.2 to 50.8mm
2:1 Viton plus
Viton + as exactly as previous Viton but with added
temperature of 10% more than standard Viton.
2:1 +220C Viton +, 3.2 to 50.8mm
2:1 & 4:1 PTFE
2:1 & 4:1 are used in highly critical & extreme
environments due to it being the highest temperature
in all polymers, 2:1 & 4:1 PTFE
Below are Non-Shrinkable Polymers to consider
PTFE Tubing BS2848 Class 6 250T
High Temp Tubes -70 to +260C,
AWG 0 to AWG 30
PTFE Sleeving BS 2848 Part 6 250T
High Temp Sleeves -70 to +260C,
AWG 0 to AWG 28
AS41088 & PAN6480
Spiralwrap: -70C to +260C
Spiral Binding -70C to +260C
Convoluted Conduits, -70C to +260C
Smooth bore and other conduits.
Metric Rod & Imperial Rods, -70C to +260C
BS-EN-ISO-13000 Imperial & Metric Rods.
is High Voltage DC wires
& AWM3239 +105C
UL3239 HVDC wires to +105C
Heat shrink tubing, PTFE sleeving, conduits, & spiralwrap
Reg UK 6153820 | GB VAT 562 3681 35
Disclaimer | shrink.?.@gmail.com | © 2014
Address: 6 Dodd Croft, Rochdale, OL16 4QX,
Gtr Manchester, Great Britain
If you are a customer from russia, looking for any of our portfolio of tubing, please go away as we do not do business
with bullies who invade a beautiful country like Ukraine, Slava Ukraina!