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  • Overview
  • Specs
  • Coverage Rate
  • Application

E812 Acrylic Roof Coating 

E812 is a low voc water based acrylic self-plasticizing monolithic roof coating that withstands ultraviolet light, temperature extremes, mildew and normal foot traffic.  Offers good long term durability, passing the ASTM G53 accelertated weathering test at 9,000 hours.  This tough, flexible membrane will accommodate building movement without cracking or splitting.

E812 works well on sloped roof substrates including wood, metal, and concrete. E812 is not recommended for aplication over tar based roofing, EPDM rubber or roofs subject to pooled or ponding water.  For EPDM roofs and those subject to pooled or ponding water consider our waterproof E814RCP Co-Polymer White Reflective Roof Coating E811FP can be brushed, rolled or sprayed.

It is available in 6 different colors and comes in 5 gallon pails and 53 gallon drums (ships LTL freight only).  Carrier Gray, Black, Donavan Brown and Brick Red colors require minimum quantity purchase of 25 gallons.

Coverage rate depends on surface conditions and application procedures.   Can be applied in one, two, or three coat applications, with or without fabric reinforcement. Normally applied in a 2 coat system, 1.5 gallons per 100 square feet of a base coat and 1.5 gallons per 100 square feet of a topcoat combine to achieve the recommended 40-45 mils wet thickness and 22-25 mils dry film thickness.  Calculate total usage at 33-34 sq’/gallon when applied in 2 coats.

PRIMER: None required.

TOPCOAT: None required

Where is E812 Acrylic Roof Coating Used?

  • Where a tough, long lasting budget friendly roof coating is needed.
  • Sloped roof surfaces including concrete, wood and metal.
  • Roof projects requiring walking surfaces

Why E812 Roof Coating?

  • Tough, flexible budget friendly 1 part acrylic roof coating
  • Good adhesion for Concrete, Wood and Metal
  • Tough surface, holds up to normal foot traffic
  • Excellent weathering pass ASTM G93 for 9,000 hrs
  • Excellent UV stability
  • Resists growth of mildew
  • Good flexibility >200% Elongation
  • Resists cracking, splitting with building movement
  • Available in 6 colors


Solids (weight) 62%
Solids (volume) 55%
Colors 6 colors
Recommended Film Thickness 20-22 mils wet per coat x 2 coats = 40-45 mils wet total (22-25 mils dry film thickness)
Coverage Rate Depends on surface conditions and application conditions, normally 1.5 gallon per 100 sq’ per coat x 2 coats.  Coverage for 2 coats combined 33-34 sq’/gallon
Packaging 5 gallons, 53 gallon drum
Shelf Life 6-12 months in unopened container at 65°F
Flash point 212°F  (no flash) ASTM D3278 seta flash closed cup apparatus
Heat stability 10 days at 120°F then re-evaluated:  Material stability maintained
Particle Size  <38 microns or hegman 4-5  ASTM 1218
Density  Mean=11.24#/gallon    ASTM D1475 U.S. standard weight per gallon cup at 75°F and 50% R.H
Viscosity @77°F, 50% R.H 100-115 kreb units ASTM D115 Thomas Stormer Model 9730-G45
Hardness 40-50  ASTM D2240 shore A @75°F 50% R.H. Barcol hardness tester model 3061
Accelerated Weathering Excellent with no apparent degradation      ASTM G53 (9000 hours QUV accelerated weather tester UV-B lamps no. QES-40/280-315 nanometers. (12 hr. QUV @ 60°C and 12 hr. con @ 50°C)
Tensile Strength 150 psi  ASTM D412 @ 75°F and 50% R.H. Test is result of medium value(for 3)
Elongation >200% minimum    ASTM D412 @ 75°F and 50% R.H
Memory Recovery Nearly 100%
Reflectivity 89% (white topcoat) ASTM E97
Minimum Film Formation 45 degrees F ASTM D2354 temp 0 to 25 deg C


Coverage Rate Depends On Surface Conditions And Application Conditions, Normally 1.5 Gallon Per 100 Sq’ Per Coat X 2 Coats.  Coverage For 2 Coats Combined 33-34 Sq’/Gallon


PRODUCT STORAGE: Store product in an area so as to bring the material to normal room temperature before using. Continuous storage should be between 60 and 80 degree F.  Keep from freezing.

SURFACE PREPARATION: Make certain that the substrate where the product is to be applied is clean, sound and free of all laitance, dirt, dust, oil, grease, or foreign contaminants. Wire brush or abrasive blast all loose and scaling rust from the roof. Apply E815 to all head laps and boltheads.

ENVIRONMENTAL CONDITIONS: Make certain that the roof temperature and the air temperature as well as any humidity recommendations are within the recommended ranges before applying the product.  Recommend applications with temperatures above 50F and Relative humidity below 95% with no rain imminent within 24 hours. 4)

APPLICATION:  This product may be applied by roller, brush or spray. Be sure to apply this product at the specified coverage rate or recommended mil thickness. We recommend a 218-320 Graco 30:1 ratio pump system or equal with a coverage rate of 1 1/2 gallons per 100 square feet per coat (two coats recommended). Allow sufficient time between coats, and remember, as temperatures become lower this product will require additional time to cure. Always check the previous coat for foreign contamination before recoating. Clean or prepare the preceding coat if an inspection so warrants before applying any additional coats.  Take notice of the full cure time and do not open the area to abusive use before the full characteristics of the coating is achieved.

For best mixing results and proper blending  recommend a Jiffy Mixer style drill mixer.

REOPEN SERVICE TIME:  Take notice of the full cure time and do not open the area to abusive use before the full characteristics of the coating is achieved. 6)

MAINTENANCE: Provide for routine maintenance of your roof to assure years of trouble free performance.


  • Allow material to cure (24 hours) before exposure to rain or dew.
  • Do not apply a second coat until the first coat is dry.
  • Do not apply thicker than recommended.
  • Read the SDS before using this product.
  • Product is not resistant to solvent exposure.
  • Physical properties are typical values and not specifications.

NOTICE TO BUYER: DISCLAIMER OF WARRANTIES AND LIMITATIONS ON OUR LIABILITY We warrant that our products are manufactured to strict quality assurance specifications and that the information supplied by us is accurate to the best of our knowledge. Such information supplied about our products is not a representation or a warranty. It is supplied on the condition that you shall make your own tests to determine the suitability of our product for your particular purpose. Any use or application other than recommended herein is the sole responsibility of the user. Listed physical properties are typical and should not be construed as specifications. NO WARRANTY IS MADE, EXPRESSED OR IMPLIED, REGARDING SUCH OTHER INFORMATION, THE DATA ON WHICH IT IS BASED, OR THE RESULTS YOU WILL OBTAIN FROM ITS USE. N0 WARRANTY IS MADE, EXPRESSED OR IMPLIED, THAT OUR PRODUCT SHALL BE MERCHANTABLE OR THAT OUR PRODUCT SHALL BE FIT FOR ANY PARTICULAR PURPOSE. NO WARRANTY IS MADE THAT THE USE OF SUCH INFORMATION OR OUR PRODUCT WILL NOT INFRINGE UPON ANY PATENT. We shall have no liability for incidental or consequential damages, direct or indirect. Our liability is limited to the net selling price of our product or the replacement of our product, at our option. Acceptance of delivery of our product means that you have accepted the terms of this warranty whether or not purchase orders or other documents state terms that vary from this warranty. No representative is authorized to make any representation or warranty or assume any other liability on our behalf with any sale of our products. Our products contain chemicals that may CAUSE SERIOUS PHYSICAL INJURY. BEFORE USING, READ THE MATERIAL SAFETY DATA SHEET AND FOLLOW ALL PRECAUTIONS TO PREVENT BODILY HARM.

E811FP Acrylic Roof Coating Colors