GEHR PVDF®

Chemical Family: Vinyls Vinylics & Vinyl Derivatives

GEHR PVDF® shows a higher tensile strength, pressure resistance and dimensional stability than the related PTFE, but friction and insulation properties are lower. PVDF has a high mechanical strength and toughness at lower temperature and it’s self-extinguishing. The operating temperature ranges from -30 °C to +150 °C. PVDF shows a high resistance to chlorine, bromine and high-energy radiation.

Properties

Physical Form: Custom, Rods, Sheets
Custom
Rods
Sheets

Other characteristics

Brand: GEHR PVDF
Color: Black
Density: 1780.0 - 1780.0 kg/m³
Features: Anti-Wear Properties, Chemical Resistant, Dimensional Stability, Excellent Mechanical Strength, Excellent Rigidity, Excellent Toughness, Good Tear Strength, Good UV Resistance, High Tensile Strength, Low Friction, Low Water Absorption, Radiation Resistant, Self Extinguishing
Polymer Name: Polyvinylidene Fluoride (PVDF)
Odor: Odorless
Markets: Agriculture & Feed
Automotive & Transportation
Building & Construction
Consumer Goods
Electrical & Electronics
Healthcare & Pharma
Industrial
Storage: The products shall be stored indoor to keep away from any source of degradation such as sunlight, UV-jets, ionizing radiation, chemicals.
Machining: The product can be machined with standard machinery and tools. Before machining the product should be stored at room temperature 24 h. Evacuate swarf to prevent slipping or tripping. Observe the maximum allowable concentration of dust and formaldehyd levels on the working area which apply in your country. Wear safety goggles during machining. General dust limit value: Respirable dust (6 mg/m3); Inhalable dust (10 mg/m3 ).
Properties: High tensile strength
High mechanical strength
High rigidity (also at low temperature)
High chemical resistance
Very low water absorption
Good friction and wear and tear values
Self-extinguishing
High UV-resistance
Flame Rating: UL 94 V0
Insoluble In: Water
Technology: Plastics
Safety Measures: The general industrial safety measures should be considered. A thermal damage during machining should be avoided.
Product Families: Plastics — Parts, Shapes & Films
Form and Condition: Rods. Sheets / Solid

Technical data

Table 1 of 6

10 rows

Characteristic	Value	Unit	Method
Tensile Strength at Yield	58	MPa	ISO 527
Elongation at Yield (S)	17	%	ISO 527
Tensile Strength at Break	46	MPa	ISO 527
Elongation at Break (R)	29	%	ISO 527
Impact Strength (an)	No break	kJ/m2	ISO 179
Notch impact Strength (ak)	12	kJ/m2	ISO 179
Ball Indentation (Rockwell Hardness)	120	MPa	ISO 2039
Hardness	80	Shore D	ISO 868
Flexural Strength (B 3,5 %)	80	MPa	ISO 178
Modulus of elasticity (Et)	2125	MPa	ISO 527

Table 2 of 6

5 rows

Characteristic	Value	Unit	Method
Specific Gravity	1.78	—	ISO 1183
Water Absorption	0.04	%	ISO 62
Humidity Absorption	0.01	%	ISO 62
Maximum Permissible Service Temperature	150	°C	UL746B
Lower Permissible Service Temperature	-30	°C	UL746B

Table 3 of 6

9 rows

Characteristic	Value	Unit	Method
Vicat Softening Point (VST/B/50)	138	°C	ISO 306
Vicat Softening Point (VST/A/50)	160	°C	ISO 306
Heat Deflection Temperature (HDT/B)	145	°C	ISO 75
Coefficient of Linear Thermal Expansion	0.47	K-1.10-4	ISO 11359
Coefficient of Linear Thermal Expansion	1.3	K-1.10-4	ISO 11359
Heat Deflection Temperature (HDT/A)	104	°C	ISO 75
Thermal Conductivity (20°C)	0.13	W/(m.K)	ISO 22007-4
Glass Transition Temperature (Tg)	-40	°C	ISO 3146
Melting Temperature (Tm)	171	°C	ISO 3146

Table 4 of 6

3 rows

Characteristic	Value	Unit
Density	1.78	g/cm³
Melting Temperature	165 - 175	°C
Thermal Decomposition	min. 315	°C

Table 5 of 6

6 rows

Characteristic	Value	Unit	Method
Volume Resistivity	min. 10^10	Ω.cm	IEC 60093
Surface Resistivity (Ro)	min. 10^12	Ω	IEC 60093
Dielectric Constant (1MHz)	7	—	IEC 60250
Dielectric Loss Factor (1 MHz)	0.24	—	IEC 60250
Dielectric Strength	27	kV/mm	IEC 60243-1
Tracking Resistance	CTI 600	V	IEC 60112

Table 6 of 6