4:1 PTFE heat shrinkable tubes use imported quality polytetrafluoroethylene (PTFE commonly known as teflon, plastic king) resin, and processed by the special methods. The product has high temperature resistance, high pressure resistance, corrosion resistance and wear resistance, good self lubrication, etc. Widely used in mechanical, electronic electric appliance, automotive, aerospace, chemical industry, communication and so on each kind of domain.

Performance	Test Way	Performance Index
Extention	IEC811-1-1	19MPa
Breaking Elongation	IEC811-1-1	200%
Axial shrinkage rate	ASTM-D2671	Maximum +/- 15%
Tangent coefficient	ASTM-D882	Maximum750MPa
Special gravity	ASTM-D792,A-1	2.1g/cm3
High temperature anti-aging (Placing 168 hours in 300C	IEC811-1-2	No fall, not flow, no burst
Low temperature adaptability	ASTM-D2671Meth.c	No burst in -65C
Flammability	No flame

Performance	Test Way	Typical Characteristics
Insulation force	VDE 0303 Part 2	26kv/mm
Volume resistivity	VDE 0303 Part 3

Specification		Minimum Inner Diameter Before Shinkable (mm)	Shinkabe After)
Inch	(MM)		Maximum Inner Diameter (mm)	Wall Thinkness (mm)
5/64	Φ2.0	2.0	0.64	0.25+/-0.04
3/32	Φ2.4	2.4	0.80	0.25+/-0.04
1/8	Φ3.2	3.2	0.95	0.25+/-0.04
3/16	Φ4.8	4.8	1.27	0.25+/-0.04
1/4	Φ6.4	6.4	1.60	0.25+/-0.05
3/8	Φ9.5	9.5	2.44	0.25+/-0.05
1/2	Φ12.7	12.7	3.66	0.25+/-0.06
5/8	Φ15.9	15.9	4.52	0.25+/-0.06
3/4	Φ19.1	19.1	5.70	0.25+/-0.06
1	Φ25.4	25.4	7.06	0.25+/-0.06
11/14	Φ31.8	31.8	8.82	0.25+/-0.06