Join Date: Oct 2011
Location: Boring, OR
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Re: Painting RZR plastics
Technically speaking, there is no procedure for painting pigmented plastics. With that being said, lots of people do it with great success. The reason why Dupont, PPG, BASF, & Sherwin say there's no warranty is because of the content of Parafin wax associated with the color that's infused with the polypropylene and thus the paint film will not successfully pass "impact testing" (since paint film doesn't really like to stick to parafin wax to the degree that manufacturers are comfortable with).
If your painter is using Spies Hecker brand products, he should be scrubbing the plastic with warm water and 7081 Spies Hecker plastic prep (with a grey Carborundum scotch brite or a gold 3M scotch brite), which will remove all mold release agents from the plastic part. Note: a circular cleaning fashion with the scotch brite vs a linear scotch brite scratch will scrub & clean plastics up to 8 times greater, leading to better adhesion. Clean them twice "as per the tech manual", dry and clean panel with 7085 hydro cleaner and apply 3300 plastic primer mixed 1:1 with 3301 activator (1 1/2 coats or 1.25 mils). 35 minutes later, you can apply basecoat color or top coat single stage.
Let us know how it goes.....
Last edited by NSaneturbos; July 3rd, 2012 at 11:55 PM.