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LC Endothermic Firestop Sealant

SpecSeal LC Endothermic Sealant is a latex-based gun grade firestop sealant for construction joints and non-combustible penetrations. After application, LC Sealant cures to form a flexible seal against the propagation of fire. Under fire exposure, LC absorbs heat and release water vapor resisting the progress of smoke and flame.

Test Standards

ASTM E814 (UL1479)

CAN/ULC-S115

ASTM E1966 (UL2079)

Third Party Approvals
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Applications
Blank Opening

Blank Opening

Bottom of Wall

Bottom of Wall

Cables

Cables

Duct

Duct

Floor to Floor

Floor to Floor

Floor to Wall

Floor to Wall

Head of Wall

Head of Wall

Metal Pipe

Metal Pipe

Wall to Wall

Wall to Wall

Properties
Autobonding

Autobonding

Joint Movement

Joint Movement

Low VOC

Low VOC

Paintable

Paintable

Permanent

Permanent

Smoke Barrier

Smoke Barrier

STC Rating

STC Rating

Water Based

Water Based

Product Details

Features

  • Installer Friendly, easily applied with standard caulking gun
  • Can be troweled on for larger applications
  • Tested for up to 4 Hours of fire resistance when tested to ASTM E1966/UL2079, ASTM E814/UL1479, and CAN/ULC-S115
  • Listed in over 80 UL Tested Firestop Systems!
LC Description