Rapid Set® Skim Coat
For Patching, Skim Coating, and Underlayment Projects
Q: Where can I use Rapid Set® Skim Coat?
A: Rapid Set® Skim Coat can be used as an underlayment and cosmetic patching. Please contact your local CTS Cement representative for more information on other applications.
Q: Can Rapid Set® Skim Coat be used as a wear surface?
A: Rapid Set® Skim Coat cannot be used as a wear surface. It will not support car or forklift traffic.
Q: How should the surface be prepared?
A: Surface should be mechanically abraded by scarifying, grinding, shot-blasting, or other approved methods. Remove all loose particles from the surface. Surface must be porous, not be contaminated by oil, bond breakers, paint, acids, dirt or other materials that prevent a good bond.
Q: How much working time do I have with Rapid Set® Skim Coat?
A: At temperatures of 70°F, the working time of Rapid Set® Skim Coat is approximately 20-30 minutes. Cold materials and water will slow down the set time, while warm materials and water will speed up the set time.
Q: How thick can I apply Rapid Set® Skim Coat?
A: Rapid Set® Skim Coat can be applied in thicknesses from featheredge up to 1-inch deep
Q: What type of primer should I use with Rapid Set® Skim Coat?
A: Rapid Set® Acrylic Primer is specially formulated for compatibility with Rapid Set® Skim Coat.
Q: Do I need a primer? When would I use a primer?
A: Primer is not needed for Rapid Set® Skim Coat application. A primer will be needed if Rapid Set® Skim Coat is applied in multiple lifts. Multiple lifts will require primer to be used between lifts. Primer may be needed for porous substrates.
Q: Can a sealer be used with Rapid Set® Skim Coat? What kind of sealer should I use?
A: Yes, Rapid Set® Skim Coat can be compatible with sealers. Water based sealers are recommended for use with Rapid Set® Skim Coat. Other sealers may be used, please contact your local CTS Cement Representative for more information.
Q: How many FLOW Control® packets can I use per 20-lb bag of Rapid Set® Skim Coat?
A: For a 20-lb bag of Rapid Set® Skim Coat, only one packet may be used.
Q: How many SET Control® packets (0.9 oz, 25 grams) can I use per 20-lb bag of Rapid Set® Skim Coat?
A: For a 20-lb bag of Rapid Set® Skim Coat, only one packet may be used


