Temperature-activated addition cure systems
for silicone polymers
Reaction: Addition
Reactants/functionality: SiOH/SiH
Catalysts: Platinum, rhodium
Stimulus for cure: Accelerated by heat |
Common applications:
Liquid silicone rubber (LSR), foamed LSR, high-consistency rubber (HCR),
moldmaking, release coatings for paper, die attach adhesives
Advantages
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Cure without byproducts
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Clear, deep-section cure
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Good adhesion
Disadvantages
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Limited bath life
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Potential for catalyst poisoning and substrate inhibition
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Catalyst cost
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