VOCOMP-20 water-based acrylic curing and sealing compound is formulated using special acrylic polymers in a true water-based carrier. Once properly applied, VOCOMP-20 provides a nearly impermeable seal for efficient moisture retention. VOCOMP-20 appears “milky white” in the container and, when first applied, leaves a “bluish” cast on the concrete for easy visual confirmation of coverage. VOCOMP-20 dries clear to provide a transparent sheen finish. The sheen can be controlled by the number of coats applied. VOCOMP-20 resists yellowing from ultraviolet exposure and provides a durable, long-lasting finish that offers improved resistance to chemicals, petroleum and abrasives.
VOCOMP-20 will minimize hair-checking, premature cracking, dusting and spalling. However, good concrete and good concreting practices should be used, as VOCOMP-20 is not a cure-all for improperly mixed or placed concrete. VOCOMP-20 meets the very strict maximum VOC content limits of 100 g/L for sealers as required by certain California Air Pollution Control Districts, as well as the 400 g/L VOC maximum required by the U.S. EPA Architectural Coatings Rule.

Surface Preparation
New Concrete: Apply VOCOMP-20 when the surface water has disappeared and the concrete surface will not be marred by walking workmen.
Mixing
For optimum performance, gentle mixing or agitation is recommended. CAUTION: TO AVOID FOAMING, DO NOT MIX EXCESSIVELY.

Application Method
A typical commercial sprayer, such as a Chapin 1949 with a 5916 spray nozzle (or equivalent sprayer and nozzle), is recommended. The 5916 spray nozzle will produce a desired flow of 1/10th of one gallon per minute. VOCOMP-20 should be sprayed on in a fine, fog pattern, without spurts and dribbles, to form a thin, continuous film. AVOID PUDDLING in low areas… if puddles occur, brush or roll them out. VOCOMP-20 can also be applied using a lint-free roller or lambs wool applicator. Care should be taken to maintain a wet-edge during application to prevent roller marks in the dried film.
For added protection and a greater sheen on the concrete, an additional coat of VOCOMP-20, VOCOMP-25 or VOCOMP-30 may be applied after the first coat of VOCOMP-20 has thoroughly dried.
Proper application is the responsibility of the user. Field visits by W. R. MEADOWS personnel or their representatives are for the purpose of making technical recommendations only and not for supervising or providing quality control on the jobsite.

Drying Time
VOCOMP-20 dries quickly. Drying times may be extended, depending on application rate, temperature, humidity and project conditions. Restrict foot traffic for at least four hours ... 12 hours is preferable.

Cleanup
While VOCOMP-20 is still wet, equipment may be easily cleaned up with soap and water. Once dried, the material may be removed with a solvent, such as xylene or toluene.