H&C Concrete

Product Supplies

1. H&C® Etching Solution
2. 1/2" drill
3. Mixing paddle
4. 5 gallon pail
5. Tape and paper to mask all areas for protection
6. Trowel, steel squeegee or hopper gun
7. Roller, pump spray, airless or HVLP sprayer

Product Preparation

Newly pored concrete must be cured a minimum of 28 days. Remove all laitance, efflorescence, chemical contaminants, grease, oil, old paint, and other foreign matter. The prepared surface must be clean and structurally sound. Shot blasting, scarifying or water blasting may be necessary to achieve the proper profile for both a chemical and mechanical bond. Acid etching or other treatments should be evaluated for profiling. H&C® Etching Solution is an effective, safe alternative to muriatic acid. Substrate must be 40°F and rising before installation. Surface at 90°F and above must be cooled before installation. Dampen area with fog tipped sprayer before using, leaving no puddles.

Mixing Equipment: A 1/2" (13mm) drill and a mixing paddle with a 5-gallon pail are sufficient. The 1/2" drill must be a slow or variable speed drill to control the shear and mixing speed.

Product Application

***Please refer to the Product Data Pages for full Product Application information. 

Bond Coat: Apply a thin coat of the H&C® Texture Resin & Bond Coat to the surface. This bond coat can be applied by a roller, pump spray, airless and HVLP sprayers.  Allow the bond coat to dry to the touch before application of the overlay system.  Older and more weathered surfaces may require a thin base coat of overlay material to create a level surface and prevent settling of the stamp coat. Cover or mask all areas requiring protection with tape and paper so that material does not bond to unwanted surfaces. Concrete MUST be damp with no standing water prior to base coat application. Apply the base coat by troweling, steel squeegee or hopper gun sprayer.

Stamp Coat: See detailed Product Data Pages for mixing instructions.  Apply in ambient and substrate temperatures between 40ºF and rising and 90ºF. Dampen concrete before applying the base coat (SSD). Pour stamp mix material directly onto the surface not exceeding an amount that can be reached and worked properly. Immediately gauge rake to desired thickness. It is important to hold the gauge rake level to achieve the correct thickness and coverage. Misting the stamp coat with water will also help extend the open time of the product. Once the material is raked to a consistent thickness, smooth with a round edge steel trowel (fresno) or steel squeegee. The surface should be slick troweled to create a “skin” so that stamp mix can uniformly react. Do not over-trowel material, which may cause the skin to tear or blister. Allow stamp coat material to set until material yields to touch without easily sticking to fingers. This drying time should range from thirty (30) minutes to two (2) hours depending on thickness and weather conditions.

Stamping: Using a solvent pump-up sprayer, apply Liquid Release agent to stamps and to the stamp coat material. Cover an amount with Liquid Release that can be stamped within several minutes. If the Liquid Release has evaporated prior to stamping, it must be reapplied. Proper alignment of the first few stamps is critical. As each stamp is placed, apply adequate pressure to the entire surface of the stamp producing a complete impression with proper texture. Continue running the stamps by carefully lifting the earliest stamp placed and setting it in sequence.

Joint Clean Up: Double lines and excess material in joints may be removed typically the following day. A joint cleaning tool can be fashioned by creating a loop in banding iron. Simply scrape out the double lines with this tool. All edges of material should be trimmed clean at this same time. A soft brush and a leaf blower keep the loose material cleaned up from the surface. Touch-up areas missed and repeat cleaning process.

***See Product Data Page for detailed Product Application instructions.  Also see for Curing & Topcoating information.