FlameSafe® FS 900+ Sealant is cost-effective, water-based and cures to form a flexible shield against the spread of fire and smoke. It is available in grade: caulkable/ trowelable (CG). FS 900+ does not contain solvents and, as a result, is not toxic and will not damage plastic pipes or cable jackets.
 
Features 
Versatile and economical
Non-sag
Excellent adhesion
Allows dynamic movement
Flexible set
Easy clean up
No VOCs, non-toxic
Low odor / Paintable
Interior grade
STC rating 62
Up to 4 hour fire rating