Difference between Condensation Cure Silicone Rubber and Addition Cure Silicone Rubber

Condensation cure silicone rubber

Addition cure silicone rubber

vulcanizes at room temperature

vulcanizes at room temperature

Some small molecules produced

No small molecules

Heating can’t improve the curing speed

Heating can improve the curing speed

Poor strength

great strength

Humidity can increase the curing speed 

Humidity has no effect on the curing speed

Poor performance early in the sulfide, resumed after

Good performance

higher shrinkage

Low shrinkage

Catalyst is not toxic

The catalyst contains toxic substances

Bonding is better

Bonding in general

Relatively cheap cost and price

Relatively high cost and price

Not food grade

Food grade