Thursday, October 7, 2010

Technical Aspects of EPDM (Liquid Roof and Liquid Rubber)

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.

Liquid Roof and Liquid Rubber need temperatures above 55 degrees to cure. The temps can go below 55 but the product will not begin curing again until the temp's go above 55 degrees. Chemical Resistance-Cured EPDM rubber is resistant to acids, alkalis and polar solvents Cure system-Two-component Peroxide initiated Heat Resistance 302 degrees F (150 degrees C)

Physical Properties:

The physical properties of Liquid EPDM Rubber for roofing are typical of its EPDM chemistry. The outstanding characteristics include:
1. Extreme high resistance to penetration of water, Ultra Violet and Ozone stable, excellent long term aging properties.
2. Very broad temperature tolerance range (from 300 degrees F to minus 62 degrees F). Acid and alkali resistant Withstands ponding water even when not cured

Technical Properties of EPDM

1. Specific Gravity 0.87
2. Color Available white or black