KEMKO 322 Ultra Low Viscosity IR (ULV)

 KEMKO 322 is an ultra-low viscosity, two-component epoxy-acrylic hybrid adhesive resin formulated for cold weather structural repairs and pressure injection grouting. It is primarily used for structural crack injection, bonding, and as a rapid-setting primer or surface consolidator for concrete, masonry, and wood.

·      Part A (resin) and Part B (hardener) in a 2:1 mix ratio by volume.

·      Typically applied using the KIP (KEMKO Injection Process) automatic dispensing equipment.

·      Compatible with KEMKO 038, 068, 030, 050, and 077 for alternative conditions and crack sizes.

·      When thickness exceeds 1/4" (6.35 mm), pre-place uniform aggregate to manage exothermic heat.

·      Pressure injection grouting of fine cracks (down to 2 mils / 0.05 mm).

·      Repair of delaminations and voids in concrete, masonry, grout, and wood.

·      Anchoring of steel elements (bolts, dowels, rebar).

·      Bonding dissimilar materials to concrete/masonry.

·      Reinforcement with CFRP or steel plates.

·      Healer-Sealer for porous concrete surfaces.

·      Primer for rapid-setting applications or topcoats.

·      Substrate Temperature Range: Minimum 35°F (1.7°C); cure begins at 40°F (4.4°C).

·      Pot Life (Gel Time): 15 minutes at 73°F (23°C), 45 minutes at 40°F (4°C).

·      Thin Film Tack-Free: 5.5 to 6.5 hours at 73°F.

·      Use within 1–3 hours for priming before tack loss (depending on substrate temperature).

·      Flood coat coverage (Healer-Sealer): 80–125 sq. ft. per gallon (0.008–0.0125 Gal/ft²).

·      Not UV-stable; exposure to UV may require protective topcoat.

·      Thickness Limit: Up to 1/4" (6.35 mm); thicker applications require pre-placed aggregate.

·      Recommended CSP (Concrete Surface Profile): CSP 2 to CSP 4.

·      Installation humidity and direct water contact tolerance is excellent; adheres to damp, wet, or underwater substrates.

·      VOC Free and suitable for indoor or confined space use.

·      High mechanical strength (compressive: ~15,000 psi; tensile: ~7,800 psi).

·      Heat Deflection Temperature: 120°F; limit service temperature to 100°F for structural applications.

·      Excellent resistance to acids, bases, oils, fuels; limited hydrocarbon solvent resistance.

·      Color options include standard amber or fluorescent pink/yellow for visibility.

·      Cartridges and various kit sizes available (3, 15, 150 gallons).

·      Do not thin or add solvents; requires complete mixing and prompt use to avoid rapid exotherm.