Introduction: Sanding Polycarbonate for Frosty Effect

Picture of Sanding Polycarbonate for Frosty Effect

I did this at TechShop Menlo Park.

These large sheets of polycarbonate are to be sanded down for a frosted effect to be used in the construction of large art light-boxes.

Step 1: Peeling

Picture of Peeling

The shiny surfaced sheets are revealed by peeling the protective layer from each side.

Step 2: Sanding

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Using an air rotary hand held sander and 40 grit sanding discs and protecting the face with a dust mask we indulge in hours of making circles on this piece of plastic.

Step 3: Break

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We pause for a quick break to hear some short but very poignant wisdoms from a book.

Step 4: More Sanding

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We roughed up the surface enough to have no more shiny spots. Now we continue to smoothen and frost our surfaces to perfection.

Note: this takes a long time and is pretty hard on the body. If you have a sand blaster, I highly suggest using it for quicker and better results.


caitlinsdad (author)2012-08-05

Have you tried using solvents and potscrubbers to haze the plastic? But then I don't know what is worse, getting dusted with plastic micro particles or breathing in chemical vapors.

lime3D (author)caitlinsdad2012-08-09

 A Scotchbrite Pad and a garden hose works on acrylic. Not sure if it would work on polycarbonate though.

Also, a finish sander would work better than a rotating disk sander. (No swirl marks.)

rimar2000 (author)2012-08-05

Very interesting, thanks for sharing!

About This Instructable




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