RTV4420 Platinum Cure Silicone Rubber - 1kg Kit

RTV4420 is our most flexible Addition/Platinum cure silicone and is the replacement for Addition Cure 13. It is compatible with many pattern materials such as wood, plaster, metals amd plastics. There are however some materials which are not compatible with this silicone. The cure can be inhibited by the presence of nitrogen, sulphur, phosphorus, arsenic, PVC stabelisers, epoxy resin, this includes contact with materials that contain these substances such as latex, plasticine, some ceramic clays, sulphur vulcanised rubbers, condenstation cure silicones, onion and garlic (due to the sulphur content). If you are uncertain about the compatibility of your modelling material please test a small sample before completing the project.

Mixing ratio 1:1
Shore A Hardness 20
Pot Life 11-15mins
Full Cure is reached in 24hours

This silicone is suitable for use with our thixotropic paste Addition cure thixo alternatively our new thixo also works well. RTV thixo paste

Curing is temperature dependent and is accelerated considerably by heat.