TUFF-POXY Primer VRP-111

Vapor Reducing Epoxy Primer (Clear)

Data Sheet

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TUFF-POXY PRIMER VRP-111 Vapor Reducing Epoxy Primer is a fluid-applied, uniquely modified, epoxy moisture mitigating primer. It is designed to be used as an above grade and below grade vapor retarder that is placed on the negative side of the concrete substrate. As a vapor emission suppressor, one application of TUFF-POXY PRIMER VRP-111 will withstand moisture vapor emission rates of up to 10 lbs./1000 square feet/24 hrs. Two (2) applications will withstand moisture vapor emission rates of up to 15 lbs./1000 square feet/24 hrs. It is recommended for use under impervious non-breathing epoxy flooring systems or traffic-bearing waterproofing systems that cannot withstand high levels of moisture vapor transmission.



TUFF-POXY PRIMER VRP-111 is ideal for use under TUFFLEX non-breathing flooring systems and traffic-bearing waterproofing systems.


As a general rule, most flooring and deck coating manufacturers do not recommend installing their products on concrete surfaces having moisture vapor emissions rate levels in excess of 3.0 lbs. of moisture emission when measured over a 1,000 square foot area during a 24 hour time period as measured by an anhydrous Calcium Chloride Test Procedure tested in accordance with ASTM F1869.


TUFF-POXY PRIMER VRP-111 is applied in either single applications of 8 mils wet/dry film thickness or two applications at 8 mils wet/dry film thickness per each coat. TUFFLEX POLYMERS resinous flooring systems and waterproofing coatings may be applied directly to the TUFF-POXY PRIMER VRP-111. Consult TUFFLEX POLYMERS for recommendations regarding potential intermediate coating products for non-TUFFLEX POLYMERS products.


Formulated with environmental requirements in mind, TUFF-POXY PRIMER VRP-111 contains no hydrocarbon solvents and thus meets all volatile organic substance regulations. TUFF-POXY PRIMER VRP-111 has no significant odor during installation.


  • Apply TUFF-POXY PRIMER VRP-111 to prepared dry substrate with a CSP 3 – 5 surface preparation. Apply at a coverage rate of 200 square feet (18.6 sq. m.) per gallon.
  • Allow to dry between coats (8 – 10 hours cure time at 75° F / 50% RH.)
  • For moisture mitigation up to 15 lbs./1000 square feet/24 hrs., a second application of TUFF-POXY PRIMER VRP-111 is required, applied at 200 square feet per gallon.
  • Allow to cure a minimum of 8 – 10 hours prior to placement of surfacing material.


This product contains Epoxy Resin, Polyamine Hardeners and flammable solvent. Personnel applying these coatings should wear protective clothing, safety goggles and gloves. Avoid contact of material with skin or eyes and avoid breathing the solvent vapors. Mix and apply in well-ventilated areas and observe normal safety precautions required for solvent containing epoxy materials. Read the MSDS sheets before using this product. THIS PRODUCT IS FOR PROFESSIONAL USE ONLY.


Tufflex Polymers warrants this product to be free of defects in workmanship and materials only at the time of shipment from our factory. If any TUFFLEY materials prove to contain manufacturing defects that substantially affect their performance, TUFFLEX will, at its option, replace the materials or refund its purchase price.


This limited warranty is the only warranty extended by TUFFLEX with respect to its materials. There are no other warranties, including the implied warranties of merchantability and fitness for a particular purpose. TUFFLEX specifically disclaims liability for any incidental, consequential, or other damages, including but not limited to, loss of profits or damages to a structure or its contents, arising under any theory of law whatsoever.


The dollar value of TUFFLEX’s liability and buyer’s remedy under this limited warranty shall not exceed the purchase price of the TUFFLEX material in question.


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Fontana, California 92337


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