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Dr. William Lewis, a research scientist and inventor of superhard scratch- and abrasion-resistant coatings, founded a small consulting and development company in 1990 that later became California Hardcoating Company. Dr. Lewis perceived that silicon sol-gels had tremendous potential to increase significantly the scratch- and abrasion-resistance of polycarbonate plastics, such as Lexan®, as well as many other plastics and damage-prone materials. Moreover, he believed it was possible to bring down the costs of these coatings and make them more accessible to smaller companies and for a broader range of applications.

In his more than thirty years of experience in the fields of organic chemistry and nanoparticle silicon-based coatings, Dr. Lewis has worked and consulted for numerous companies, including 8 years with E. I. duPont and twelve years working with aerospace windows and opthalmic lenses. He has been a manager, director, vice president and president of various companies. He earned his Ph.D. in Organic Chemistry from the University of California, Davis, has published numerous scientific papers and holds several patents.

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The Perma-New technology family comprises customized formulations designed to meet your specific coating and usage requirements. Our technologies include heat and UV curing, as well as anti-fog and weatherable hardcoatings. In addition, coatings can be created in a range of gloss values, from fully glossy to non-glare, semi-gloss and satin finishes. Coatings can be adjusted to closely match the requirements of different coating methods and equipment. Coverage varies based on the thickness of the coating, which in turn varies by the solids content of the coating and application method. All coatings are custom formulated &amp; manufactured to order and can be supplied in containers from 1 to 55 gallons.

Perma-New

Perma-New™ V-17 (U​V-cured) Class Coatings comprise weatherable coating technology for polycarbonate. Although our Perma-New 6000 class of coatings provides great outdoor service on acrylic, polycarbonate is so susceptible to UV degradation, that it needs special protection. Otherwise the hardcoating loses adhesion as the polycarbonate degrades underneath it. This new technology is UV-curable and is expected to provide 5 years of outdoor performance, based on QUV test results. Coating formulations of this class can be optimized for spray, flow, roller or dip applications.

Perma-New™ V-17 (U​V-cured) Class Coatings

Perma-New™ 4000 Class Coatings strike an optimal balance between hardness and resistance to fogging. These are proprietary formulations of a polysiloxane (silicone) copolymer in alcohol solvents, which can be heat-cured to a hard, transparent, coating that has excellent resistance to fogging. At a target thickness of 3.5 to 5 microns on polycarbonate, it will resist rubs with “#0000” steel wool at least 5 times as well as uncoated polycarbonate.

Perma-New™ 4000 Class Coatings

Perma-New™ V-2 Class (UV-c​​ured) Coatings are proprietary formulations of UV-curable monomers in alcohol solvents. Typically, they will be colorless to pale amber liquids containing 20-50% solids (i.e., polymerizable and non-volatile materials, not including solvents). The percentage of solids is adjusted to match the intended application method. These coatings will adhere to many kinds of plastics without requiring a primer. At a target thickness of 4 to 12 microns, when fully cured, this class of coating will resist 5 double rubs under firm thumb pressure with #0000 steel wool, with few or no visible scratches. even on polycarbonate. Taber abrasion resistance on acrylic or polycarbonate will be outstanding compared to uncoated plastic.

Perma-New™ V-2 Class (UV-c​​ured) Coatings

Perma-New™ 6000 Class Coatings is a patented technology incorporating silica-filled methylpolysiloxane polymer containing a latent heat-cure catalyst system, in a blend of alcohols. They are colorless, slightly hazy liquids, typically containing 28% solids by weight. Solids content can be reduced to accommodate different application techniques.

Perma-New™ 6000 Class Coatings

Perma-New™ V-​​​16 (​​​​​​​​UV-cur​​ed) Class Coatings are new formulations similar to Perma-New V-2, but this class can be optimized for adhesion of vacuum deposited coatings (anti-reflective coatings) that will be applied on top. Although the V-2 class coatings can be used for subsequent vacuum deposition, it is easier for the vacuum deposition operator to achieve good adhesion over formulations in this class. The solids of this coating technology can be as high as 46%, which makes them suitable for spin application on ophthalmic lenses. At lower solids, coatings of this class can be used for dipping, roller or flow applications.

Perma-New™ V-​​​16 (​​​​​​​​UV-cur​​ed) Class

California Hardcoating

Dr. William Lewis, a research scientist and inventor of superhard scratch- and abrasion-resistant coatings, founded a small consulting and development company in 1990 that later became California Hard

California Hardcoating - Silicon Sol-Gels - Knowde

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Documents - California Hardcoating - Knowde

​​​Perma-Ne​w™ 6000 Class Coatings Safety Data Sheet

Perma-New™ 4000 Class Coatings Safety Data Sheet

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