PVDF Plastic (Kynar®) Machining

PVDF plastic, also known as polyvinylidene fluoride or Kynar®, is a high molecular weight crystalline thermoplastic polymer. It exhibits excellent abrasion, chemical, and flame resistance and high UV stability. Upland Fab has been working with this unique material for years and provides precision machined PVDF plastic parts and components for all applications.

 

Features & Benefits of Polyvinylidene Fluoride Materials 

• PVDF plastic, being corrosion and chemical resistant, is very tough and durable, with good thermal stability in operating temperatures as high as 300°F (149°C)
• PVDF plastic offers high tensile strength and high impact resistance, and is easy to weld using thermoplastic welding technology.

Polyvinylidene fluoride is available in homopolymer and copolymer formulations

• Homopolymer PVDF plastic provides higher strength and stiffness and greater heat deflection than copolymer PVDF
• Copolymer PVDF plastic is less stiff than the homopolymer variety, but offers greater impact and stress crack resistance

Both types of PVDF are available in FDA-compliant grades.

Applications of PVDF Plastic

The unique properties of PVDF plastic make it an ideal material for a broad range of uses. Common applications include:

• chemical tank liners and process equipment
• semiconductor components
• pipe flanges
• fittings
• seals
• gaskets

among many others.

Properties of PVDF Plastic

ASTM or UL test	Property	Kynar® PVDF
	PHYSICAL
D792	Density (lb/in³) (g/cm³)	0.064 1.77
D570	Water Absorption, 24 hrs (%)	0.03
	MECHANICAL
D638	Tensile Strength (psi)	6,300
D638	Tensile Modulus (psi)	290,000
D638	Tensile Elongation at Break (%)	50
D790	Flexural Strength (psi)	9,700
D790	Flexural Modulus (psi)	290,000
D695	Compressive Strength (psi)	9,000
D695	Compressive Modulus (psi)	-
D2240	Hardness, Shore	D75
D256	IZOD Notched Impact (ft-lb/in)	3.0
	THERMAL
D696	Coefficient of Linear Thermal Expansion (x 10-5 in./in./°F)	6.6
D648	Heat Deflection Temp (°F / °C) at 264 psi	230 / 110
D3418	Melting Temp (°F / °C)	332 / 166
-	Max Operating Temp (°F / °C)	275 / 130
C177	Thermal Conductivity (BTU-in/ft²-hr-°F) (x 10-4 cal/cm-sec-°C)	1.2 4.1
UL94	Flammability Rating	V-O
	ELECTRICAL
D149	Dielectric Strength (V/mil) short time, 1/8" thick	1700
D150	Dielectric Constant at 1 MHz	8.5
D150	Dissipation Factor at 1 MHz	0.05
D257	Volume Resistivity (ohm-cm)at 50% RH	1.5 x 1015

[Polyvinylidene Fluoride material chart]

 

Precision PVDF Machining

To ensure precision and accuracy when machining PVDF plastic parts, we utilize multi-axis machining technology. Our CNC machining capabilities enable us to maintain tight tolerance in complex geometries, and ensures perfect repeatability from the first part to the last. Minimal time is required for handling and fixturing, and in many cases highly intricate parts can be completed in a single operation for quick turnarounds.

DPD/MBD processes (Digital Product Definition/Model-Based Definition) allow us to machine polyvinylidene fluoride parts directly from your CAD models. Using your digital design files helps eliminate errors and enhances precision and efficiency. This results in higher quality, lower cost parts.

 

Upland Fab Top-Flight Communication Keeps You Informed 

Good communication is crucial in any project. That’s why, when you work with us, you’ll have a single point of contact throughout the entire process, and you’ll receive consistent, reliable updates that will keep you up to speed on your project’s progress.

 

Other Materials We Work With

Are you looking for another material? We have the ability to machine many different materials take a look below at some of the other plastics we work with. 

 

Fluorosint®	PCTFE	Rulon®
Kel-F®	PTFE	Teflon®
Kynar®	PVDF	Tefzel®

Contact Us to Learn More About PVDF Plastic Machining

Since 1970, customers throughout Southern California have turned to Upland Fab for top-flight plastic and composite machining. Contact Upland Fab for more information, or get a quote on the PVDF plastic parts you need.

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