SpecPoxy CJ 100% Solids, Semi-Rigid Epoxy Control Joint Filler

SpecPoxy CJ is a semi-rigid, two-component epoxy control joint filler that supports joint edges against spalling from wheel traffic

SpecPoxy CJ fills control and construction joints in industrial concrete floors, complying with ACI 302 section 4.10 recommendations for epoxy joint fillers. It cures with optimum hardness to transfer wheel loads while allowing moderate movement.

Key Features & Benefits

• Easy 1:1 mix ratio and pourable gray consistency
• High elongation to resist tearing from excessive movement
• Moisture insensitive — cures in damp environments
• Semi-rigid flexibility, avoiding welding slabs together or becoming brittle with age
• Complies with ACI 302, section 4.10 recommendations

Application Instructions

• Can be poured, applied with a bulk caulking gun, or pumped from a dual-component pump
• Overfill the joint, then grind or cut flush to the concrete surface once tack-free
• If not fully cured, a heat flame may help facilitate cutting

Packaging

Available in 2-gallon units (also offered in 10-gallon units).

Supporting Documents

Safety Data Sheet (SDS)

Technical Data Sheet (TDS)