The BOSS® 814 latex firestop sealant is a one part, elastomeric, intumescent firestop sealant that expands when exposed to fire or extreme heat, forming an insulated char. The BOSS® 814 will prevent the spread of toxic gases, smoke and fire. It is suitable for adhesion to almost any surface and remains flexible, making it ideal for both horizontal and vertical joints, subject to vibration or dynamic movement. It can be used for interior or exterior applications, and it can be painted.
- Excellent freeze/thaw properties
- Safe to use and handle
- Water clean-up
- Apply using a standard caulk gun