Elastomeric coatings are roofing applied in a viscous state. It has elastic properties, and can stretch in the summer time heat and then return to their original shape without damage.
Elastomeric coatings usually contain polymeric materials, such as acrylic, and a white pigment, such as titanium dioxide, to make them opaque and reflective. An elastomeric coating is applied thicker than paint. An elastomeric coating can be used on virtually any substrate including asphalt built-up roofing, concrete roofing, metal roofing, modified bitumen roofing, polyurethane foam roofing and single ply roofing.
Since EPDM Liquid Rubber Coatings cures by chemical reaction, a single heavy application will be preferable to multiple thin coats. A second coat will bond to a previous film but that bond will not be as strong as the internal bond within each layer. If a second coat is applied before the first has thoroughly cured, some wrinkling may result as the first coat absorbs solvent and swells. This will, however, recover as the solvent evaporates. It is generally recommended that only a single coat be applied over non-porous surfaces, the thickness of which can be varied as desired. Thicker films will take longer to cure through. Asphalt coatings and asphalt built-up roofs are considered unstable substrates and therefore, not recommended for coating directly with Liquid Rubber EPDM. EPDM COATINGS do carry a specific elastomeric which with a two coat application gives you a 10 year warranty.
Liquid Rubber is designed to re coat structurally sound existing roof and protective materials. They are also best for RV Roof Repair. They should not be used in place of roofing membranes”.
The following are recommended substrates to coat:
- Metal – Coated or Galvanized Steel
- Weathered Aluminum
- Weathered Copper
- EPDM Rubber membrane
- Concrete (except foot traffic surfaces)
- Urethane Foam
- Primed Wood
- Fiberglass
- PVC Sheet and Pipe
- Acrylic Sheet
- Sponge Rubber insulation
Do Not use Liquid Roof or Liquid Rubber on the following substrates:
- Built up asphalt roofs
- Asphalt shingles
- Modified asphalt roll roofing
- Stainless steel
- Glass
- Silicone caulk
- Foot traffic surfaces
- Hypalon Membrane
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