SpecPoxy CJ 
100% solids, semi-rigid epoxy control joint filler
SpecPoxy C.J. is a two-component, semi-rigid epoxy designed for filling control and construction joints in industrial concrete floors. It supports joint edges, reducing spalling caused by wheel traffic and complies with ACI 302, section 4.10 recommendations for epoxy joint fillers.
Applications:
- Filling control and construction joints.
- Repair of damaged or spalled joint nosing and cracks.
- Easy 1 to 1 mix ratio and pourable gray consistency.
- High elongation to resist tearing due to excessive movement.
- Moisture insensitive to cure in damp environments.
- Semi-rigid flexibility, not welding slabs together or becoming brittle with age.
- Optimum hardness to transfer wheel loads while allowing moderate movement.
Application
- SpecPoxy C.J. can be poured, applied with a bulk caulking gun, or pumped from a dual component pump.
- Overfill the joint, and once tack-free, grind or cut flush to the surface of the concrete.
- If not fully cured, a heat flame may facilitate cutting.
Packaging
- Available in 2 gallon and 10 gallon units.
Shelf Life
- Store in original tightly closed containers.
- Shelf life is two years from the date of manufacture when stored properly.
Test Data
- Complies With: ACI 302 guidelines for “Epoxy Joint Filler”.
- 100% Solids: Semi-rigid epoxy control joint filler.
- Pot Life at 75°F: 20 minutes.
- Tack-free at 75°F: 6-8 hours.
- Shore A Hardness: 90±5 (ASTM D2240).
- Tensile Strength: 910 psi (ASTM D638).
- Tensile Elongation: 60-70% (ASTM D638).
- Adhesion to Concrete: Adhesion failure to concrete.
Cleaning
- Uncured material can be removed with SpecChem Solvent 100 or other approved solvents.
- Dispose of in accordance with local, state, and federal disposal regulations. Cured material requires mechanical removal.