PTFE heat shrink sleeving

PTFE heat shrink is made from pure virgin PTFE with no fillers or additives, and therefore offers all the exceptional properties of PTFE.

PTFE’s high working temperature exceeds that of any other heat shrink polymer. In addition, it is completely resistant to virtually all chemicals, UV radiation, very high temperatures and voltage breakdown.

PTFE heat shrink sleeving is available in many standard sizes from 0.8mm to 51mm ID, in 4:1 and 2:1 shrink ratios, and the shrinking temperature is 327°C. As a result, very complex shapes or terminals can be covered. Find our PTFE Heat Shrink Sleeving Sizes.

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PTFE Heat Shrink Unique Properties

Virtual total chemical and solvent resistance
Working temperature from -200°C to +260°C
Remains flexible at cryogenic temperatures
Very low coefficient of friction
Non-stick surface
Extremely high electrical resistance
Very low dielectric loss at high frequencies
Total resistance to UV radiation
Non-inflammable
Non-toxic

PTFE Heat Shrink Applications

Even though the maximum continuous working temperature is 260°C, PTFE is still tough at 300°C and is not damaged by short term exposure at 400°C.

Owing to these properties, PTFE heat shrink is widely used in high temperature applications:

Fire critical applications
Terminal insulation on heating elements and jet engines
UV lamps
External aircraft fittings

Fitting Instructions

Select the correct size sleeve by allowing a generous amount of shrinkage, rather than using a tight sleeve if possible.

PTFE shrinks at temperatures over 330°C, so the gun temperature should be at least 400°C. To obtain the higher temperature we suggest a hot air gun of 1.5KW capacity.

Parts to be covered that have a large thermal mass, e.g. a solid steel roller, may need preheating when PTFE heat shrink is applied to prevent chilling of the PTFE sleeve, causing a loose fit.

Find detailed Fitting Instructions for PTFE Heat Shrink.

PTFE 4:1 Heat Shrink Sleeving Sizes
Adtech Part No	Supplied ID (mm)	Recovered ID (mm)	Wall Thickness (mm)
TR20	1.98	0.64	0.22
TR32	3.18	0.94	0.25
TR48	4.75	1.27	0.30
TR64	6.35	1.60	0.30
TR80	7.92	2.00	0.30
TR95	9.52	2.44	0.30
TR125	12.70	3.66	0.38
TR158	15.88	4.52	0.38
TR175	17.45	5.03	0.38
TR190	19.05	5.70	0.38
TR222	22.23	6.20	0.38
TR254	25.40	7.06	0.38
TR317	31.75	8.82	0.38
TR381	38.00	10.20	0.38
TR444	44.44	11.00	0.38
TR508	50.80	12.70	0.38

PTFE 2:1 Heat Shrink Sleeving Sizes
Adtech Part No	Supplied ID (mm)	Recovered ID (mm)	Wall Thickness (mm)
HST30T	0.86	0.38	0.23
HST28T	0.97	0.46	0.23
HST26T	1.17	0.56	0.23
HST24T	1.27	0.64	0.25
HST22T	1.40	0.80	0.25
HST20T	1.52	0.97	0.25
HST19T	1.65	1.10	0.30
HST18T	1.93	1.17	0.30
HST17T	2.15	1.38	0.30
HST16T	2.35	1.45	0.30
HST15T	2.80	1.60	0.30
HST14T	3.05	1.82	0.30
HST13T	3.55	2.03	0.30
HST12T	3.81	2.26	0.30
HST11T	4.32	2.50	0.30
HST10T	4.85	2.80	0.30
HST09T	5.20	3.10	0.38
HST08T	6.10	3.55	0.38
HST07T	6.85	3.90	0.38
HST06T	7.67	4.40	0.38
HST05T	8.10	4.90	0.38
HST04T	9.40	5.45	0.38
HST03T	9.90	6.12	0.38
HST02T	10.90	6.90	0.38
HST00T	11.95	8.56	0.38