The product data sheet states this can be used in "various base materials such as masonry, concrete, gypsum, etc", but can your tech department confirm it may be used also on glass? Or would it require a primer?
Yamil Tamayo
ytamayo@nbbj.com
Hello Yamil - our firestop products including CP 606 Flexible Firestop sealant would not be intended or evaluated with regards to their use directly in contact with glass. We would always recommend for you to independently evaluate the sealant’s adherence properties to glass. Exposure related issues (E.G. UV effects on mineral wool, condensation in the cavity, heat build-up between glass panels, appearance from opposite side of glass, etc.) must be also be independently evaluated.
Regards,
Nate Crawford - Lead FPE