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High-Temp — Vmq

Elastomer
Vmq
Grade Or Variant
High Temp
Acid Resistance
Fair
ASTM Designation
GE (ASTM D2000)
Chemical Resistance Notes
Special Formulations for Continuous Service to 260C; Slightly Reduced Low-Temp Limit vs Standard Grades
Common Name
Silicone Rubber (High Temp)
Compression Set Pct (%)
20-40
Compression Set Temp C
200
Compression Set Time Hr
22
Cure System
Peroxide
Density G CM3 (g/cm3)
1.10-1.25
Elongation at Break Pct (%)
100-500
Fuel Resistance
Poor
Gas Permeability
High
Glass Transition Temp C (C)
-123
Hardness Range Shore a
30-80
Max Continuous Temp C (C)
260
Max Peak Temp C (C)
300
Max Service Temp C (C)
260
Min Service Temp C (C)
-55
Oil Resistance
Fair
Ozone Resistance
Excellent
Standard
AMS 3345, AMS 3357
Steam Resistance
Fair
Tensile Strength Mpa (MPa)
4-10
TR10 Temp C
-55

Source: AMS 3345, AMS 3357

VMQ — grade or variant high_temp · chemical resistance notes Special formulations for continuous service to 260C; slightly reduced low-temp… · standard AMS 3345, AMS 3357 · common name Silicone Rubber (High Temp) · astm designation GE (ASTM D2000) | Elastomer Service Properties | Engineering Database