Our advantages

Beyond expectations 

we are aimed at bring reliable cable jointing and sealing SOLUTIONS.

We are inspired to do great work because we truly believe in what we do and we put our heart and soul into it.

PVDF Kynar heat shrink tube

HST PF1 is environment friendly, rigid, flame-retardant, irradiated crosslinking heat-shrinkable modified PVDF tubing. This high-reliability product is especially suitable for applications requiring high-temperature performance, outstanding abrasion resistance and cut-through resistance, or superior chemical and solvent properties.It provides electrical insulation and strain relief of multipin connectors and solder joints . It is well-suited for applications that require dense packing of components or visual inspection of covered components .


  Features 

2:1 shrink ratio

Tough, Semi-rigid, very-thin wall insulation

RoHS compliant

Operating temperature range: -55℃ to 175℃

Test Items Test Method Test Requirements
Tensile strength  ASTM D 2671  34.5MPa minimum
Ultimate elongation  ASTM D 2671   150% minimum
Ultimate elongation after UL 224 50% minimum
Aging at 250℃ for 168hrs
Heat shock at 300℃ for 4hrs ASTM D 2671 No cracking & dripping
Dielectric strength ASTM D 2671 25kV/mm minimum
Volume resistance ASTM D 2671 1013Ω.cm minimum 
 Cold bend at -40℃ for 4hrs  ASTM D 2671 No cracking
Flammability UL 224, VW-1 Pass
Size As supplied After recovered 
(Inch) (mm)  (mm) 
  D*(Min.)  d*(Max.)  w*(Min.) 
3/64 1.2 0.6 0.20  
1/16 1.6 0.8 0.20    
3/32 2.4 1.2 0.23  
1/8 3.2 1.6 0.23  
3/16 4.8 2.4 0.23  
1/4 6.4 3.2 0.23  
3/8 9.5 4.8 0.28
1/2 12.7 6.4 0.32  
3/4 19.1 9.5 0.36
1 25.4 12.7 0.41

D* = Inner diameter as supplied

d* = Inner diameter after fully recovered