Liquid EPDM Rubber


LIQUID EPDM RUBBER COATINGS

PERFORMANCE AND APPLICATIONS

EPDM is a synthetic elastomer made by combining ethylene and propylene with a diene monomer attached. This polymer (when crosslinked) is a very good moisture barrier, resistant to oxidation and UV degradation but its most important property is its ability to tolerate both low as well as high temperatures (from minus 62 to plus 350 degrees Fahrenheit). EPDM rubber is used exclusively for radiator hoses, freezer gaskets and low temperature seals, steam hoses, and rubber roofing membranes. It is also blended with other rubbers to improve their properties. A multitude of products are now better and last longer because of the contribution made by EPDM rubber.

EPDM Rubber Coatings

Liquid EPDM coatings require a lower molecular weight polymer than is used in the molded products mentioned above. But the other and even more important requirement is its ability to cure at ambient temperatures. The development work on liquid EPDM coatings began in 1990 and the following year the first commercially manufactured EPDM coating became available. Numerous incremental improvements were made over the next several years but the most significant improvements resulted after the discovery of several new catalysts. The products now cure faster, produce better film properties, meet the California VOC restrictions, do not need special hazard labeling, have excellent storage stability, and are environmentally friendly.

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How does EPDM rubber compare to other coating types?

Water resistance

EPDM is better than epoxies, urethanes, acrylics, Polyesters and alkyds at equal film thicknesses and is not affected by continuous immersion.

UV resistance

Equal or better than acrylics, polyesters and Urethanes; much better than alkyds and epoxies.

Temperature tolerance

EPDM is better than all other coating polymers except Silicones. EPDM can withstand live steam as well as cryogenic temperatures.

Flexibility

EPDM is better than all other coating polymers except Silicones. EPDM can withstand live steam as well as cryogenic temperatures.

Chemical Resistance

EPDM has very good resistance to strong alkali’s, concentrated salt solutions, many acids, alcohols and polar solvents such as ketones. EPDM has poor resistance to oils, fats, waxes and hydrocarbon solvents.

Surface tolerance

EPDM coatings will not bond to a surface that is damp with moisture but will bond to an oil or wax contaminated surface. EPDM coatings can also be applied directly to metal surfaces that have tightly adhering corrosion without a primer.

Where can EPDM coatings be used to their best advantage?

The unique combination of properties which EPDM coatings possess can be best utilized when they are applied to the exterior surfaces of stationary structures. Examples are:

Roofs

Metal, rubber or thermoplastic membrane, fiberglass, urethane foam, cement tile and plywood.

Metal Siding

Can be applied with little or no surface preparation as a one-coat finish on steel buildings.

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Concrete Tanks

The excellent water proofing properties of EPDM will reduce or prevent spalling of the concrete in cold climates.

Corrosive/Humid Environments

Exposed structural steel on the interior of industrial buildings with humid or corrosive environments can be coated with minimal surface preparation. Plating operations, smelters, concrete casting operations, dye works, and paper mills are just a few examples. High-density poultry and hog production operations are another good use to protect steel from the corrosive environment produced by manure.

Impoundments

Liquid EPDM coatings are a good choice for exterior spill containment structures because of their excellent weathering and broad chemical resistance properties.

Unsuitable applications for EPDM Coatings

The relatively slow cure and non aggressive adhesion of EPDM coatings make them poor candidates as factory applied finishes or as coatings for products which come in contact with each other during shipment or use. They are also not recommended for environments where they could be exposed to oils, fats, waxes or liquids with similar characteristics.

Environmental impact

EPDM rubber coatings are high solids products which meet the California VOC( volatile organic compounds restrictions. They are not water soluble in their uncured state and do not contain compounds which could find their way into the water supply. The fact that these coatings do not require primers further reduces VOC emissions and potential use of water polluting products. The durability of these coatings also lengthens. The recoat period so that their environmental impact is lessened even.









  • Testimonials

    • Dave H.

      Overall, I am impressed with the results I obtained in using Liquid RV roof on my trailer. It was MUCH easier than replacing the membrane with new, and seems to have repaired my leaking roof, extending the life of my RV, as at some point, the cost of reroofing would exceed the RV’s value. Thanks in advance!

    • Mike H.

      My roof was in bad shape. I cleaned it and kept after it a few times a year. We bought the RV used, and there were signs of neglect when we bought it. It had been obviously sitting in the sun for an extended period of time without any care or maintenance. I was about to buy a sheet of EPDM and forego the labor intensive and very expensive task of replacing the sheet roof. Then I saw a video on Youtube for Liquid EPDM. So the research began. “This… Read more

    • Tom Pituch

      I was able to quickly find the 2 pictures I took after I patched the roof. I will continue to look for the before pictures, We have a flat roof with a channel down the middle that leads into a drain pipe system that has been our weak point area all along. Then we installed a sky light which was like adding gasoline to a fire. For years I was blaming the sky light that we installed. We even replaced portions of the sky light and sealed around it many… Read more

    • Bob & Sally H.

      The two pictures are the before and then after using your product Liquid Rubber. Very pleased with the way it turned out! And also the shipping sure came quickly. Have a great and safe day! Bob & Sally H.Yuma AZ

    • Rick M.

      The epdm rubber roof was easy to work with. I am very pleased after having a leaky roof that will be good for many years to come. Roof had mold on it so we first killed the mold with Clorox and water and scrubbed I down and then cleaned the roof with Dawn dish detergent. Attached are the before and after pictures. ThanksRick M.

  • Contact

    EPDM Coatings N.E Sales Office
    494 Bridgeport Ave Suite 101,
    PMB 342 Shelton CT 06484-4748
    Call: 610-298-1989, Fax: 702-977-2936
    Proud Distributor of Proguard Coatings
    Tel: 1-610-298-1989
    Email: [email protected]
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