FireFX Fire rated mastic

FireFX supplies Protecta FR Acrylic, which is a top quality fire rated mastic. The reason is that it has been developed and tested so that it can be used in nearly all firestopping situations with very few exceptions. The mastic is tested for up to 4 hours.
In addition, this FR sealant is used in combination with Protecta FR Board. This, combined with the best fire rating in the market makes the product unique. Protecta FR Acrylic is tested with many different types of penetrations through many different constructions and is a CE-marked sealant for fire rated joints and penetrations, class EI 240.