STI LC150 sealant is a latex-based, high solids firestop compound

This material, when properly installed, will effectively seal penetration openings against the spread of fire, smoke, toxic gasses and water. STI LC150 is engineered to adhere well to virtually all construction surfaces and may be applied using a standard caulk gun or by troweling with a standard masons trowel or with a putty knife. STI LC150 dries without shrinking to form a flexible shield against the propagation of fire. Its premium latex binder system is totally resistant to water and will not re-emulsify after drying. STI LC150  is non-halogenated, contains no asbestos, inorganic fibers or solvents.

• Water-Based
for easy installation, cleanup, and disposal.
• Endothermic Fillers to absorb heat release water.
• High Solids Formula means no shrinkage!
• Paintable (when dry)
• Safe No Solvents! Non-Halogenated! Low VOCs
• Red Color for easy identification and inspection.
• Installer Friendly – Excellent caulking properties along with high build capabilities.
• Excellent Smoke Seal
• Piping: non-combustible steel, iron, cast iron and copper up to 24 in diameter.
• Complex multiple penetrants
• Communication cabling systems.
• Construction joints.
• HVAC ducts.