Redgard Ceramic Coating

REDGARD CERAMIC coating is a high solids, waterbased acrylic elastomer coating incorporating heat reflective, borosilicate ceramic spheres. This specialized ceramic additive increases the heat reflectivity beyond that of typical white reflective coatings. The brilliant white pigments protect the substrate by reflecting in excess of 90% of the sun’s solar heat from the roof surface.

REDGARD CERAMIC coating provides elastomeric waterproofing protection over a wide variety of roofing substrates:

  • Metal
  • Concrete
  • Conventional built-up
  • Modified bitumen
  • Single-ply
  • Board-stock and sprayed-in-place polyurethane foam, and composite single roof substrates

REDGARD CERAMIC coating is a “breathing” membrane, allowing moisture vapor to pass through the film while remaining impervious to mass water penetration. It forms a monolithic, waterproof elastomeric seal, uniformly covering the textured profile of these substrates, providing protection from weathering, aging and ultraviolet exposure.


  1. Solids by Weight: 61% (±2) [ASTM D1644, D6083]
  2. Solids by Volume: 55% (±2) [ASTM D2697, D6083]
  3. Weight per Gallon: 11.2 lbs. (5.1 kg) (± .2) [ASTM D1475]
  4. Tensile Strength: 200 psi (1.38 MPa) [ASTM D2370, D6083]
  5. Elongation: 200% [ASTM D2370]
  6. Reflectance Rating: 93% [ASTM E805]
  7. Dry Time (@ 75ºF (24ºC), 50% RH:* Recoat: 4 to 6 Hours Water Resistance: 6 Hours Cure: 24 Hours [ASTM D1640]
  8. Accelerated Weathering: No cracking, checking or other deleterious effects after 3,000 hours in a Xenon
  9. ArcWeather-Ometer. [ASTM D4798, D6083]
  10. Cold Temperature Flexibility: Passes ½” mandrel bend at 0ºF (-18ºC) [ASTM D522, D6083]
  11. Fungi Resistance: Zero rating, no growth [ASTM G21]
  12. Code Approval: UL 790 Class A

*For White at 16 wet mils (406 microns)


  • Low Cost Application
  • Fast Application
  • High Solids and Resin Content
  • Lightweight
  • Permanent Flexibility
  • Colorfast
  • Low Maintenance Costs
  • Resists Abusive Weather
  • Long Term Fire Protection
  • Reduced Energy Cost
  • Resistance To Foot Traffic
  • Code Approvals