SpecSeal® LCI Intumescent Sealant is a versatile and economical intumescent sealant with excellent caulking properties and high build capabilities on vertical or overhead surfaces. Ready-to-use as a single component sealant that may be caulked, knifed, or troweled, it provides up to 10 times volume expansion when exposed to fire while maintaining superior adhesion to all common construction materials.

Key Features & Benefits

• Economical solution – high performance without the high price
• Highly intumescent – expands up to 10 times original volume for maximum protection
• Excellent smoke seal – superior fire and smoke barrier properties
• Water resistant – will not re-emulsify when dry for long-term durability
• Water-based formula – easy installation, cleanup, and disposal
• Acoustically tested – reduces noise transmission (STC 62 rating)
• Safe formulation – low VOCs, no asbestos, no PCBs, no inorganic fibers
• Paintable when dry – allows seamless finishing integration
• Auto-bonding technology – superior adhesion without primers
• LEED™ compliant – meets v3, v4, & v4.1 requirements for low emitting materials

Applications