Rogers Corporation Poron® 4790-92-25 Supported Urethane Foam, Extra Soft, Slow Rebound, PET Reinforced

Category	Polymer , Thermoset , Polyurethane, TS , Thermoset Polyurethane Foam, Unreinforced
Manufacturer	Rogers Corporation
Trade Name	Poron®
Port	Shanghai port,China
Trade Terms	FOB, CFR, CIF
Payment Terms	L/C, T/T, Western Union
Download PDF	Rogers Corporation Poron® 4790-92-25 Supported Urethane Foam, Extra Soft, Slow Rebound, PET Reinforced.pdf
Price	EMAIL US sales@lookpolymers.com
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Material Notes:

Extra soft, slow rebound with a very low closure force. Standard available thickness range from 0.021" to 0.500" (0.53 mm to 12.7 mm).Features and Benefits of PORON Products: Excellent compression set resistance which enables durable, long-term performance for gasketing, sealing, and cushioning.Low-outgassing and non-fogging, containing no plasticizers or residual chemicals to contaminate the device. The material will not become brittle and crumble and is non-corrosive to metal.Inherently flame retardant without the use of additives. Many of the materials meet flammability requirements of UL HBF and MVSS 302.Engineered urethane formulations offering a wide modulus range - 2-90 psi @ 25% deflection – for more design versatility requirements.Good chemical resistanceEasy to fabricate, die-cuts cleanly and works with a broad range of adhesivesThicknesses from 0.021" to 0.041" (0.53 mm to 1.04 mm)Applications:

Physical Properties	Metric	English	Comments
Density	0.400 g/cc	0.0145 lb/in³	ASTM D3574-95 Test A
	1.395 g/cc	0.05040 lb/in³	supporting material; ASTM D1505
Water Absorption	14 %	14 %	Immersion; ASTM D570-95
Moisture Absorption at Equilibrium	2.0 %	2.0 %	High Humidity; AMS 3568-95
Thickness	533 - 1040 microns	21.0 - 41.0 mil	Range of Thicknesses Available
Outgassing - Total Mass Loss	0.27 % @Temperature 125 °C, Time 86400 sec	0.27 % @Temperature 257 °F, Time 24.0 hour	CVCM; at 7000 Pa; ASTM E595-93
	0.44 % @Temperature 125 °C, Time 86400 sec	0.44 % @Temperature 257 °F, Time 24.0 hour	WVR; at 7000 Pa; ASTM E595-93
	1.44 % @Temperature 125 °C, Time 86400 sec	1.44 % @Temperature 257 °F, Time 24.0 hour	TML; at 7000 Pa; ASTM E595-93

Mechanical Properties	Metric	English	Comments
Tensile Strength	207 MPa	30000 psi	MD, supporting material; ASTM D882
Tensile Strength, Yield	103 MPa	15000 psi	F5, supporting material; ASTM D882
Elongation at Break	150 %	150 %	supporting material; ASTM D882
Tensile Modulus	3.45 GPa	500 ksi	MD, supporting material; ASTM D882
Compressive Yield Strength	0.00862 - 0.0586 MPa @Strain 25.0 %	1.25 - 8.50 psi @Strain 25.0 %	Range, 0.2"/min. strain rate
	0.0365 MPa @Strain 25.0 %	5.30 psi @Strain 25.0 %	Typical value, 0.2"/min. strain rate
Coefficient of Friction, Dynamic	0.40	0.40	A/B, supporting material; ASTM D1894
Compression Set	2.0 % @Temperature 23.0 °C	2.0 % @Temperature 73.4 °F	ASTM D1667-90 Test D
	10 % @Temperature 70.0 °C	10 % @Temperature 158 °F	ASTM D3574-95 Test D

Thermal Properties	Metric	English	Comments
CTE, linear	230 - 310 µm/m-°C	128 - 172 µin/in-°F
Maximum Service Temperature, Air	70.0 °C	158 °F	Constant use; SAE J-2236
	121 °C	250 °F	Intermittent use; ASTM D746-98
Brittleness Temperature	-12.0 °C	10.4 °F	ASTM D746-98
Shrinkage, MD	1.2 % @Temperature 150 °C, Time 2340 sec	1.2 % @Temperature 302 °F, Time 0.650 hour	supporting material
Shrinkage, TD	0.00 % @Temperature 150 °C, Time 2340 sec	0.00 % @Temperature 302 °F, Time 0.650 hour	supporting material

Electrical Properties	Metric	English	Comments
Volume Resistivity	8.00e+11 ohm-cm	8.00e+11 ohm-cm	ASTM D257-99
Dielectric Constant	1.48 @Time 86400 sec	1.48 @Time 24.0 hour	50% RH; ASTM D150
Dielectric Strength	1.97 kV/mm	50.0 kV/in	ASTM D149-97a
Dissipation Factor	0.040	0.040	ASTM D150-98

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