Kynar Flex® 2850-04

Alternative and trade names
PVDF

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Description

Kynar Flex® resins are fluorinated thermoplastic copolymers.

Outstanding characteristics: chemical resistance, imperviousness to UV, high barrier properties,high purity, good mechanical and thermomechanical properties.

Kynar Flex® 2850-04 resin is a standard grade of granules less flexible than the grade Kynar Flex® 2800-20 resin with a higher melting point. It has a UL RTI temperature rating of 140 degrees C.

This material data has been provided by Arkema Technical Polymers.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

Property	Value	Testing Standard	Condition	Comment
Coefficient of friction	0.19 [-] Show Supplier Material materials with Coefficient of friction of 0.19 [-]	ASTM D1894		vs Steel, Kinetic
	0.26 [-] Show Supplier Material materials with Coefficient of friction of 0.26 [-]	ASTM D1894		vs Steel, Static
Density	1.77 - 1.8 g/cm³ Show Supplier Material materials with Density of 1.77 - 1.8 g/cm³	ASTM D792
Limiting oxygen index	43 % Show Supplier Material materials with Limiting oxygen index of 43 %	ASTM D2863, ISO 4589-1/-2	dry
Water absorption	0.03 - 0.05 % Show Supplier Material materials with Water absorption of 0.03 - 0.05 %	ASTM D570

Mechanical

Property	Temperature	Value	Testing Standard	Condition	Comment
Compressive strength		41.4 - 58.6 MPa Show Supplier Material materials with Compressive strength of 41.4 - 58.6 MPa	ASTM D695
Elastic modulus		1.0 - 1.5 GPa Show Supplier Material materials with Elastic modulus of 1.0 - 1.5 GPa	ASTM D638
		1.3 GPa Show Supplier Material materials with Elastic modulus of 1.3 GPa	ISO 527-1/-2	dry
Elongation		30 - 200 % Show Supplier Material materials with Elongation of 30 - 200 %	ASTM D638
		50 % Show Supplier Material materials with Elongation of 50 %	ISO 527-1/-2	dry	min. \| nominal
Elongation at yield		5 - 15 % Show Supplier Material materials with Elongation at yield of 5 - 15 %	ASTM D638
		10 % Show Supplier Material materials with Elongation at yield of 10 %	ISO 527-1/-2	dry
Flexural modulus		1.0 - 1.2 GPa Show Supplier Material materials with Flexural modulus of 1.0 - 1.2 GPa	ASTM D790
Flexural strength		20.7 - 34.5 MPa Show Supplier Material materials with Flexural strength of 20.7 - 34.5 MPa	ASTM D790		at 5% strain
Hardness, Shore D		70 - 75 [-] Show Supplier Material materials with Hardness, Shore D of 70 - 75 [-]	ASTM D2240
Impact strength, Charpy notched	23 °C	8 kJ/m² Show Supplier Material materials with Impact strength, Charpy notched of 8 kJ/m²	ISO 179/1eA	dry
Impact strength, Charpy notched, ASTM	23 °C	107 - 427 J/m Show Supplier Material materials with Impact strength, Charpy notched, ASTM of 107 - 427 J/m	ASTM D256
Impact strength, Charpy unnotched, ASTM		No Break at 23°C	ASTM D256
Tensile strength		27.6 - 48.3 MPa Show Supplier Material materials with Tensile strength of 27.6 - 48.3 MPa	ASTM D638
Yield strength		25 MPa Show Supplier Material materials with Yield strength of 25 MPa	ISO 527-1/-2	dry
		31 - 41.4 MPa Show Supplier Material materials with Yield strength of 31 - 41.4 MPa	ASTM D638

Thermal

Property	Value	Testing Standard	Condition	Pressure	Comment
Coefficient of thermal expansion	0.000126 - 0.000185 1/K Show Supplier Material materials with Coefficient of thermal expansion of 0.000126 - 0.000185 1/K	ASTM D696
Glass transition temperature	-40.6 - -38.3 °C Show Supplier Material materials with Glass transition temperature of -40.6 - -38.3 °C	ASTM D7028
	-40 °C Show Supplier Material materials with Glass transition temperature of -40 °C	ISO 11357-1/-2	dry		10°C/min
Heat deflection temperature	38 - 55 °C Show Supplier Material materials with Heat deflection temperature of 38 - 55 °C	ASTM D648		2 MPa	248 °F/hr
	46 °C Show Supplier Material materials with Heat deflection temperature of 46 °C	ISO 75-1/-2	dry	2 MPa
	60 - 75 °C Show Supplier Material materials with Heat deflection temperature of 60 - 75 °C	ASTM D648		0.45 MPa	248 °F/hr
Melting point	155 - 160 °C Show Supplier Material materials with Melting point of 155 - 160 °C	ASTM D3418
	157 °C Show Supplier Material materials with Melting point of 157 °C	ISO 11357-1/-3	dry		10°C/min
Relative temperature index, electrical	140 °C Show Supplier Material materials with Relative temperature index, electrical of 140 °C	UL 746B
Relative temperature index, mechanical strength	140 °C Show Supplier Material materials with Relative temperature index, mechanical strength of 140 °C	UL 746B
Specific heat capacity	745 - 958 J/(kg·K) Show Supplier Material materials with Specific heat capacity of 745 - 958 J/(kg·K)	DSC
Thermal conductivity	0.144 - 0.18 W/(m·K) Show Supplier Material materials with Thermal conductivity of 0.144 - 0.18 W/(m·K)	ASTM D433
Thermal decomposition in air	375 °C Show Supplier Material materials with Thermal decomposition in air of 375 °C	TGA			1% wt. loss
Thermal decomposition in nitrogen	410 °C Show Supplier Material materials with Thermal decomposition in nitrogen of 410 °C	TGA			1% wt. loss
Flammability	At thickness 1.5 mm IEC 60695-11-10: V-0, At thickness 0.8 mm IEC 60695-11-10: V-0 and yellow card available

Electrical

Property	Value	Frequency	Testing Standard	Condition
Dielectric constant	3.5 - 10.2 [-] Show Supplier Material materials with Dielectric constant of 3.5 - 10.2 [-]	1KHz	ASTM D150
Dielectric strength	51.2 - 63 kV/mm Show Supplier Material materials with Dielectric strength of 51.2 - 63 kV/mm		ASTM D149
Dissipation factor	0.01 - 0.22 [-] Show Supplier Material materials with Dissipation factor of 0.01 - 0.22 [-]	100KHz	ASTM D150
Volume resistivity	2e+14 Ω·cm Show Supplier Material materials with Volume resistivity of 2e+14 Ω·cm		ASTM D257	65% RH

Optical

Property	Value	Testing Standard	Comment
Refractive index	1 [-] Show Supplier Material materials with Refractive index of 1 [-]	ASTM D542	sodium D line

Rheological Properties

Property	Value	Testing Standard	Condition	Comment
Melt mass-flow rate	4 - 25 g/10min Show Supplier Material materials with Melt mass-flow rate of 4 - 25 g/10min	ASTM D1238		230°C/3.8kg
Melt viscosity	400 - 800 Pa·s Show Supplier Material materials with Melt viscosity of 400 - 800 Pa·s	ASTM D3835
Melt volume-flow rate	15 cm³/10min Show Supplier Material materials with Melt volume-flow rate of 15 cm³/10min	ISO 1133	dry	232°C/3.8kg

Technological properties

Property
Application areas	Cable Ties,Chemical Process Industry,Chemical Process Industry - Injection Molding

Kynar Flex® 2850-04

Description

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Properties