95 chevy silverado grill

Rbm

Professional amateur
for you guys that do this every day...I got to spray a grill for this truck. Grill is black plastic new in box..how should I prep for paint..?adpro ?
 
First take a sliver off of the part and place it in a glass of water. If it floats you need promoter. If it sinks you don't.
How I do it. Grey scotchbrite pad and scuff stuff sanding paste. Then promoter if necessary, following the instructions for the Ad-Pro. Then seal it and proceed. SPI Ad-Pro is preferred. Stay away from Bulldog Ad-Pro.
 
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