Tin catalysts have been used for decades as curing agents in the polycondensation technology used to make RTV-2 silicones and are well known for their efficiency and reliability. However, due to their toxicity identified in recent years, EU Regulations have introduced some restrictions for the use of these organotin compounds and even stricter limitations are expected in the future.
The two main objectives of these regulations are to reduce (and eventually eliminate) toxicity and create a safer working space for operators, both in manufacturing facilities and out-of-factory installations.
NYKAT : The innovative Tin-Free system
classification of its formulation, according to EU standards
safer silicone polycondensation process for safer working conditions
same excellent performance levels as current polycondensation curing methods in
the majority of applications
curing kinetics to achieve the same pot-life, thus maintaining current working
times and shortening the demolding phase.