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PVDF IS WIDELY USED FOR:

  • Chemical tank liners
  • Semiconductor equipment components
  • Fittings, seals, and gaskets
  • Pump and valve parts
  • Nozzles
  • Piping

PERFORMANCE CHARACTERISTICS:

  • High purity
  • Excellent chemical resistance
  • Easy to weld using thermoplastic
           welding equipment
  • Good UV stability
  • Flame resistant
  • Abrasion resistant

COMMON BRANDS:

  • Kynar®
  • SustaPVDF
  • TECAFLON®

TECHNICAL RESOURCES

?  Chemical Resistance Chart
??  FDA Compliant Plastics
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PVDF

High purity engineering plastic with excellent chemical, abrasion, and flame resistance

PVDF (polyvinylidene fluoride), often referred to by its trade name Kynar®, is a high purity engineering thermoplastic with excellent chemical resistance, abrasion resistance, flame resistance, and UV stability. PVDF is widely used for chemical tank liners and semiconductor equipment components. FDA compliant grades of PVDF are available.

PVDF MATERIAL OPTIONS

Homopolymer PVDF – has higher strength and stiffness and has a higher heat deflection temperature than copolymer PVDF. 

Copolymer PVDF – is less stiff but has superior impact and stress crack resistance.

EXPLORE DUPONT™ VESPEL® SP POLYIMIDE MATERIALS
High strength, stiff, low friction engineering plastic with good wear properties.
High strength, stiff, low friction engineering plastic with good wear properties.
High strength, stiff, low friction engineering plastic with good wear properties.
High strength, stiff, low friction engineering plastic with good wear properties.
High strength, stiff, low friction engineering plastic with good wear properties.
High strength, stiff, low friction engineering plastic with good wear properties.

TYPICAL PROPERTIES OF PVDF

  UNITS ASTM
TEST
HOMOPOLYMER
ACETAL
COPOLYMER
ACETAL
TECAFORM®
HPV13
PTFE-FILLED
ACETAL
20% GLASS
FIBER FILLED
HOMOPOLYMER
ACETAL
Tensile strength psi D638 10,000 9,800 6,800 8,500
Flexural modulus psi D790 420,000 370,000 350,000 730,000
Izod impact (notched) ft-lbs/in
of notch
D256 1.5 1.0 0.7 0.8
Heat deflection
temperature
@ 264 psi
°F D648 257 230 244 316
Maximum continuous
service temperature
in air
°F   185 195 185 185
Water absorption
(immersion
24 hours)
% D570 0.25 0.20 0.22 0.25
Coefficient of
linear thermal
expansion
in/in/
°Fx10-5
D696 6.8 6.1 5.1 2.0 - 4.5
Coefficient of
friction (dynamic)
    0.20 0.21 0.12 0.35

Values may vary according to brand name. Please ask your Curbell Plastics representative for more specific information about an individual brand.
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