Silicone rubber MQ MPQ MVQ and MPVQ:
Composing:
All of the symbols for silicone rubber end in Q, this is the convention. Most elastomers have a carbon main chain, while Q has a silicone oxygen backbone.

Properties and Applications:
Silicone has an upper continuous heat aging temperature in the region of 205℃. Silicone is among the best elastomers for both high and low temperature resistance. Silicone rubber has excellent ozone, weather resistance and electrical insulation. Like CR, Q has a measure of flame retardant ability. Oil resistance is about the same as that of CR; acid and alkali resistance are not good. Applications include aerospace, medical, food contact, and automotive ignition cable.