Priming plastic parts...

[ewomack]

Here is a complete newbie question - is it best practice to prime the plastic parts of rockets?

I understand priming the cardboard and wooden parts of a kit, but does priming the plastic parts help the paint sit better on such smooth surfaces?

Thank you!

 

[JohnCoker]

Paint often doesn't stick well to molded parts. Generally you should wash the parts with warm soapy water first and you may have better luck with a product like Plastic Prep.

Some people like sanding the plastic first and some don't. At any rate, do not use a coarse grit of sandpaper because you'll raise "fuzzies" that need to be sanded down.

Priming before painting is always recommended.