The concept of Polarized Refrigerant Oil Additive (PROA) technology was developed in the late 1980’s by Dr. C.H. Wilkins, Dean of the Dept. of Metallurgy, University of Alabama and Dr. Charles Thompson, Retired Chemical Engineer, DuPont Chemical and a Professor at the University of Alabama. They also named Mr. Jack Hammack as co-inventor. Mr. Hammack was in charge of sales of the product. They patented their air conditioning additive concept under US Patent 4,963,280 which became known as the Wilkins & Thompson patent.

Though awarded their patent, there were numerous complications with the Wilkins & Thompson technology, including the chemical structure itself which caused the manufacturing process to consistently fail and never achieve the desired results. The product damaged compressors.

Due to the failure of the product and lack of sales the partnership between Wilkins & Thompson dissolved in the early 90’s, a lawsuit followed and each party was awarded a third of the patent with the Chief Tribologist and lead chemist, Dr. Charles Thompson, moving to Houston, TX to take the technology in a new direction. In Houston, he joined forces with Sgarbi, an industry expert with extensive chemical process manufacturing knowledge and expertise. Sgarbi built a sophisticated chemical separator and reactor and was able to make the end product (PROA®). Sgarbi then formed the PolarShield Corporation.

Sgarbi is credited for developing the sophisticated set of processes that allowed chemicals to bond together and perform as described in the Wilkins & Thompson patent. He also owns the trade secrets to the various manufacturing processes.

Sgarbi first named the PolarShield product a PROA® and trademarked it with the U.S. Patent and Trademark Office (trademark serial: 76158191). Any company claiming to sell a PROA® is in direct infringement of this Trademark.

Sgarbi has diligently worked and perfected this technology. While others try to copy his inventions and learn from his success, he has been able to maintain and develop the best products in the market today.

PROA® technology was tested by the Department of Energy (DOE) and approved under the Federal Energy Management Program (FEMP). Since then there have been several companies that have tried to duplicate the PROA® product without success. Although Wilkins and Thompson are deceased and the PROA® patent is now expired and is public domain, it is of little value without the trade secrets critical to the PROA® manufacturing process.

The PROA® product performed very well until major changes in the HVAC industry were mandated by Congress in the late 90’s. The new laws required the ozone-depleting refrigerants be replaced with more ozone-friendly refrigerants. This series of actions rendered the PolarShield PROA® incompatible and ineffective with HVAC systems to the point that using a PROA® in today’s equipment is likely to harm the equipment. For example: if a PROA® is installed in a refrigeration system that has a leak, it often turns acidic and damages the equipment.

Knowing his PROA® was no longer the answer to solving the HVAC flaw, Sgarbi went back into the lab to totally redesign and perfected his refrigeration performance solution. His efforts resulted in four new patents in 2000 relating to nanoscience processes and products under the new name of Nucleo Molecular Regenerative technology™ (NMR™). This new NMR™ technology is compatible with all of the new types of refrigerants. Mr. Sgarbi also used this new technology to develop new products compatible with the legacy systems and the older refrigerants that remain in service. The HVAC industry is still in process of transitioning to the newer refrigerants and synthetic oils. One product alone will not solve the chemical compatibility requirements needed to ensure safe usage across the various equipment in the market today.

Powertron Global™ was formed. The company’s new product line with NMR™ technology is marketed under the PermaFrost® name. There are several formulations of PermaFrost® designed for different types of applications and refrigeration requirements.

PermaFrost® is 100% safe and effective. In nearly 10 years of extensive testing by numerous reputable engineering firms and corporations in laboratory settings, field demonstrations, and real-world on-site pilot implementations, the PermaFrost® product line has proven to be extremely effective. To date there has never been a claim against a PermaFrost® product that it caused harm or damage to a customer’s HVAC or refrigeration system.

Powertron Global’s patented PermaFrost® formulations are specifically designed and patented to clean the HVAC coil system from the inside and neutralize the effects of oil fouling. PermaFrost® formulations work in a synergistic manner to activate, lubricate, and improve thermo-conductivity without compromising the existing components of a refrigeration system.

Powertron Global’s R&D department, led by founder Sgarbi, relentlessly tests new products, chemicals and venues to improve the existing products and develop better and more efficient methods of improving the world in which we live.