Guangzhou Jinwei Chemical Co., Ltd

Automotive Refinish Paint One Stop Supplier. Professional Team, Perfect Service!

About Polyurethane in the car paint car refinish and automotive touch up paint
- Mar 09, 2018 -


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Some companies say that their clears and paints are superior because it is a polyurethane, not just a urethane. “poly” means more than one, and “urethane” means A synthetic crystalline compound, CO(NH2)OC2H5.


 Therefore a “polyurethane” is a class of synthetic materials made by copolymerizing an isocyanate and a polyhydric resin. Simply put, any two part urethane IS A POLYURETHANE!


However there are three basic types of polyurethanes used in the paint business. They are:


Enamel polyurethanes: Enamel resins cross-linked with a polyisocyanate (usually an IPDI polyisocyanate - a less durable form) which is usually the cheapest and less desirable of all polyurethanes. Usually when people boast that their products are polyurethanes, they are simply cheap enamels crosslinked with a hardener and are NOT all that durable. BEWARE


Acrylic polyurethanes: Very durable coatings, the backbone of the OEM car industry. 100% acrylic polyurethanes have high gloss, and very high gloss retention when exposed to the sun’s UV. They will stay shiny for many years. They have a good to excellent chemical resistance as well. There are many forms of acrylic resins. Some with mediocre long term durability, and some with outstanding 20 plus year durability.


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Jinwei chemical car paint/automotive refinish/auto paint/2K industrial paint/ADV paint  are all under acrylic polyurethane system for at least 5 years duability with high gloss,high chroma.


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