Wet-Sanding exterior plastic?
How to first off, better to rub in straight lines or circular motions?
What gear do I need to do this by-hand? And are there kits available with abrasives, compounds polish and clothes etc or it's a case of buying everything separately?
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RE: Wet-Sanding exterior plastic?
Are you prep'ing the surface for spraying them?
RE: Wet-Sanding exterior plastic?
Quote:
Originally Posted by Curran
Are you prep'ing the surface for spraying them?
I have a splitter for the e36, which I might consider spraying if it doesn't clean up well!
But,I was hoping to try use a wet sand type process just to remove pitting and small scrapes/scratches. I had been watching some youtube vids about wet-sanding and they seem to use something like Meguirs Quik-Detail as a lube for the abrasive paper ranging from 800 - 3600 grade, but generally 2000 wet-dry, then compound, polish and seal. But Didn't really go into specifics as in plastics, body panels etc or kits available, you know!?
RE: Wet-Sanding exterior plastic?
So its painted already?
Yeah, thats pretty much the process - though I'd probably use 1500, 2000, 2500 and 3000 grit.
Seeing as its a splitter, its probably destroyed in stone chips, so might be best to bite the bullet and spray it; and follow the same process to polish it up.
Re: Wet-Sanding exterior plastic?
No it's not painted already! Just thought it could be sanded with 2000plus to bring it back smooth because it's pretty bad with the pitting/stone chips!
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RE: Wet-Sanding exterior plastic?
Ah - if its not painted; not sure how it will turn out by sanding the plastic.
But since its not painted; work away with 800 or more abrasive grit - thought it was painted and was afraid you might sand through the clear coat.
The E36 splitter is supposed to be a smooth shiny finish? So after sanding it might be smooth, but doubt it will be shiny, you might need a clear coat on it???
RE: Wet-Sanding exterior plastic?
Quote:
Originally Posted by Paddy
No it's not painted already! Just thought it could be sanded with 2000plus to bring it back smooth because it's pretty bad with the pitting/stone chips!
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I sanded, primed, painted and lacquered exterior plastics on my e36, can't remember what grade I used. Turned out fine. But then i was approaching the sanding as just keying the plastic rather than smoothing it.