Master Spas meet the stringent energy standards of the California Energy Commission (CEC).
The Polar Wrap Insulation System with Icynene has dramatically raised the bar on standard urethane foam insulation systems used by almost all U.S. spa manufacturers.

What is Icynene?
Icynene is polyicynene expanding foam insulation, an environmentally safe development in low density, cellular plastics. Chemically, it is in a class of its own. It allows foam to be sprayed without ozone destroying gases (HFAs or HCFCs) or formaldehyde. The micro-cells of this breathing material are filled with air and there are no gas emission hazards. Icynene is the only insulation material certified by the Envirodesic Certification Program for healthier air quality.

Locks out the cold.
The Icynene Insulation System expands to 100 times its initial volume in seconds to insulate and air-seal the spa envelope. The resulting blanket of soft foam insulation forms a continuous thermal barrier that eliminates cold spots and significantly reduces energy costs. A consistent, comfortable temperature is maintained inside the spa, while cold air is kept outside.

By minimizing air leakage, there is a reduction of airborne moisture movement through the spa envelope. This helps to prevent condensation, which can result from moisture-laden interior air contacting the cold outer layers of the wall. Icynene offers peace-of-mind to homeowners by minimizing the potential for condensation related problems, such as the growth of mold and mildew under the spa.