The Super Mat w/ Integral Weather Barrier
The silicone topcoat
Super Mat STC is a silicone-topcoated version of Super Mat. With the same overall properties as the uncoated Super Mat, this topcoated version offers additional versatility.
When a metal or non-metal weather jacket is not needed to protect from mechanical abuse or animal attack, significant cost savings along with other advantages can be realized.
Flexible, UV-resistant, and rain-proof
With decades of outdoor industrial exposure under its belt, silicone is well-accepted as a robust, rain-proof, high-performing polymer with excellent resistance to ultra-violet (UV) light.
Lewco Specialty Products is well-recognized as a manufacturer of silicone- and other polymer-impregnated fiberglass fabrics which are used in the manufacture of removable blankets intended for outdoor equipment.
The 1 mm nominal thickness of this seamless, continuous silicone is designed to resist the penetration of fractured water droplets which forcefully impact the surface.
Cost and schedule benefits with “built in” jacket
The highest cost component of an industrial insulation system is the metallic or the non-metallic weather jacket.
When suitable for the operating environment, use of Super Mat STC (with silicone coating) as the outer layer of an insulation system will allow for elimination of a traditional metal or non-metal weather jacket, resulting in significant savings. The three costs associated with a traditional weather jacket ( cost of the jacket, the labor to fabricate, and labor to install) can all be eliminated when the operating environment will allow for Super Mat STC as the outer layer.
Skin sensation temperature vs. actual surface temperature
Metal is considered a “high energy capacity” material. This means that it transfers heat energy very efficiently to whatever touches it.
When human skin touches metal, the skin’s sensation of the surface temperature is much different from the sensation of the surface temperature when touching a non-metal surface of the same temperature.
ASTM C1057 is a Practice, first issued in 1986, for the Determination of Skin Contact Temperature From Heated Surfaces Using a Mathematical Model and the Thermesthesiometer. The practice was used to determine what thickness of Super Mat STC would be required to keep the skin sensation temperature of the silicone topcoat below the threshold required to be considered as personnel protection.
Third party testing was undertaken at a laboratory in Houston, Texas in August 2018.
Results of this testing can be found in the menu under the Resources tab. See Thermesthesiometer (Skin Sensation) Testing.
Thermesthesiometer unit (white box w/ black cover on probe) is ready to measure skin sensation temperature of a test specimen of Super Mat STC which rests atop a hot plate.