​BLUESIL STOPPER BR1 has to be stirred up every time before using.

For best results add the BLUESIL STOPPER BR1 to the SiH-containing part of the silicone (please check corresponding MSDS) at around 0.4% level, and mix thoroughly. The exact amount of BLUESIL STOPPER BR1 to be used is indicated on the technical datasheet and/or certificate of analysis of the adapted silicone system.

The silicone is processed as described in the technical data sheet of the silicone system in question.

BLUESIL STOPPER BR1 may be stored at temperatures between -10°C / 14°F and 30°C / 86°F for up to 12 months from its date of manufacturing.Please consult the Safety Data Sheet of this product.


BLUESIL STOPPER BR1 is an additive used to prevent post curing in silicones.

BLUESIL STOPPER BR1 extends working time and softens the silicone system. The silicone system has to be specifically adapted to the additive use.

2 Part RTV

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