Painting Polycarbonate Sheet and PP Sheet

 

The extraordinary clarity of polycarbonate makes it an excellent substrate for backlit signs.  Generally, but not always, the sheet is sprayed on its second surface. Because the paint faces the inside of the sign cabinet, it is protected from the elements. Any painting done on the first surface of the sign face must be clear coated.

Paint Selection. In selecting a paint for painting polycarbonate sheet, follow the manufacturer’s recommendations. In thinning the painting, use the recommended solvents.  Because solvents can craze or craze polycarbonate, use milder thinners. 

As a rule of thumb, avoid using keytones, as well as chlorinated and aromatic solvents.  Generally,  paint systems based on aliphatic hydrocarbons, such as mineral spirits, alcohols, heptane and hextane, are compatible with polycarbonates.  

Comments

  1. SinghalglobalIndustriesJuly 17, 2025 at 7:45 PM

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  2. SinghalglobalIndustriesJuly 17, 2025 at 7:51 PM

    Polypropylene sheets, popularly known as PP sheet 3mm have earned significant attention in industrial and commercial applications due to their durability, chemical resistance, and affordability.

    ReplyDelete
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