CHEM-BOND 2

APPLICATION

Limitations: application at ambient temperature below approximately 41°F (5°C) is not recommended. Exposure to temperatures exceeding 149°F (65°C) for prolonged periods is not recommended.

Coverage: when applied as a bonding agent, spread at a rate of 175 ft² per Gallon (4.30 m² per Liter). This coverage is equivalent to 0.553 Lb per yard² (0.30 Kg per m²).

Surface Preparation:

Pre-treatment of Substrate: surface should be clean and sound. The surface must be free of any dust, oil, grease, laitance, curing compounds, or any other contaminants. It may be dry, damp, or wet, but must be free of standing water. The very best results are obtained on dry concrete. Do NOT apply on surfaces, which have been sealed with a permanent type of form oil, curing compound or release agent. Remove these substances before application. The surface temperature must be 41°F (5°C) and rising.

Acid Etching: on new concrete surfaces, remove laitance and un-bonded cement particles by acid etching.  Dampen the surface with tap water.  Use Chem-Crete’s CONCLEAN CCC070 or dilutes Muriatic acid to a 10% solution.  Always add the acid to the water.  Scrub the acid water solution onto the surface at the rate of 50 ft² / Gal (1.22 m² / liter).  Allow the solution to sit for 20 minutes or until the acid bubbling stops.  Scrub and flush thoroughly with clean water until all traces of acidity are washed-off from the surfaces.  Remove water by squeegee, vacuum or broom and allow the surface to air dry. Other methods may be adopted if the acid etching method is not feasible, such as shot blasting, sand blasting or mechanical grinding.

Mixing: stir each component separately. Mix 1 part A and 1 part B by volume into a clean mixing container.  Mix the epoxy with a slow speed hand drill fitted with a mixing paddle attachment. Carefully scrape the sides and bottom of the mixing pail during mixing. Blend for 3 minutes until achieving a uniform color and consistency.  Mixed epoxy must be processed within the pot life. Mixed epoxy will cure much faster in hot weather. Large batches of mixed epoxy will cure much faster than small batches. When preparing epoxy mortar, mix in 3 to 4 parts of aggregate by volume to one volume of CHEM-BOND 2 mixture.

Concrete Curing: observe standard curing practice for the newly placed concrete or hydraulic mortars.

Cleaning: remove uncured CHEM-BOND 2 from tools and equipment with suitable solvents such as Xylene, Toluene or CHEM-CRETE BLENDED SOLVENT immediately after use. Cured material may only be removed mechanically.