White Lightning Flame Buster Intumescent Latex Caulk (Carton of 12)

The White Lightning Flame Buster Intumescent Latex Sealant is a high-performance, one-part elastomeric sealant designed to provide fire and heat protection. This fire caulk sealant expands when exposed to fire or extreme heat, forming an insulated char that helps prevent the spread of toxic gases, smoke, and fire. Flame Buster Intumescent Latex adheres to almost any surface and remains flexible, making it ideal for both horizontal and vertical joints that experience vibration or dynamic movement. Suitable for both interior and exterior applications, this fire resistant caulking offers long-lasting protection while maintaining flexibility. Once the sealant has been inspected, it can be painted for a clean, finished look.

The sealant you need will depend on your project; figure out what you need with the different types of sealant.