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Epoxy Cool-Roof Coating System

Tuesday, October 27, 2009

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Polarhide LLC introduced the Polarhide Zero-VOC Waterproof and Cool-Roof Coating System™ for Commercial Roofs, an epoxy-based roof-coating product. In addition to zero VOC content, the coating system delivers a solar-reflective index (SRI) of 108, well above the index of 78 required to meet the definition of a cool roof, the company says.

The coating system's epoxy chemistry is reported to provide a high degree of adhesion, water resistance, strength, durability, and cured-film flexiblity. Product characteristics also include resistance to acids, alkali, grease, and oil. The system is recommended for various roof surfaces, including metal, smooth-surface roofs, and roofs with granular or gravel surfaces. The product can be applied by spray, brush, and roller.

The formulation composition includes titanium-dioxide, ceramic, and post-consumer content, the company says.

   

Tagged categories: Cool roof coatings; Polarhide; Roof coatings

Comment from Jay Kapadia, (10/28/2009, 8:16 AM)

What kind of epoxy? Epoxies are not UV resistant and will chalk which is going to effect the other properties on long run. I am some what concerned when this factor was not included before developing the system.


Comment from Gabriel Anoruigwe, (10/28/2009, 9:03 AM)

Epoxies are not known for flexibility characteristic. I guess the formulation has a very good dose of plasticizer.


Comment from Daniel C., (10/28/2009, 2:59 PM)

There are some new silicone-epoxy hybrid technologies available that are aliphatic and non-chalking. They were designed for offshore and bridge type applications. They do have very good flexibility. I do know the silicone is grafted into the backbone, vs. a cold blend, offering improved performance. Interesting to learn more about this application...


Comment from Thomas Cahill, (10/29/2009, 3:36 PM)

The precursor product to Polarhide's new zero VOC roof coating product,and upon which the new product is wholly based, had eliminated the natural chalking and UV sensitivity limits of epoxies as far back as 1965. Generally speaking chalking has not been a problem with properly made epoxies in decades. Hybrids (epoxies with other coating families) especially in a roof implementation will last as long as their weakest ingredient or weakest bond, especially in roof standing water. Roof coating installers can't afford to be in doubt since they pay for warranty issues. Hence Polarhide's commitment to unadulterated epoxy roof coatings.


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