Thread: Sandblasting and painting rims

Picking mine up tomorrow - THX to SpeedWayRover, it was him who actually did the job!!!

LRH

No worries, all done, they look a treat, if I do say so myself.

Originally Posted by Michael2

What about sand blasting & zinc plating. A silver zinc coat finish on a sand blasted surface takes the glossy shine off and gives it a nice matt sheen. I've had a few things (grab handles, cargo barrier, pioneer tool brackets) sand blasted and zinc coated (gold zinc) , then left unpainted on the SIII. Has anyone done this on rims?

Or I remember years ago seeing a Stage 1 Isuzu with dip galvanised wheels - which is, of course, the ultimate in protection. And can be painted, although these ones weren't.
John

If you dip galvanize something and want it painted, 1st you have to have it lightly blasted, then put a certain type of paint on that will stick to gal the best, then prime, then top coat. Which of course will cost "alot" more, and thats after the cost of galvanizing it. And gal coating can still be scratched and rust like any other paint surface. It all comes down to what you want and how many $$$ you want to spend. Personally, I would stick to the simple, blast, prime, top coat. Also makes it easier to repair if you do damage anything.

Originally Posted by SpeedWayRover

If you dip galvanize something and want it painted, 1st you have to have it lightly blasted, then put a certain type of paint on that will stick to gal the best, then prime, then top coat. Which of course will cost "alot" more, and thats after the cost of galvanizing it. And gal coating can still be scratched and rust like any other paint surface. It all comes down to what you want and how many $$$ you want to spend. Personally, I would stick to the simple, blast, prime, top coat. Also makes it easier to repair if you do damage anything.

You don't have to "lightly blast" galvanising - just use the correct etch primer same as aluminium. And the advantage of galvanising over any other coating is that it not only electrolytically protects the surface even if scratched through, but is self healing for small scratches.

Having said this, I agree that galvanising is a bit of overkill for wheels unless you are driving regularly in salt water (as the one I saw was apparently doing, launching boats).
John

Originally Posted by JDNSW

You don't have to "lightly blast" galvanising - just use the correct etch primer same as aluminium. And the advantage of galvanising over any other coating is that it not only electrolytically protects the surface even if scratched through, but is self healing for small scratches.

Having said this, I agree that galvanising is a bit of overkill for wheels unless you are driving regularly in salt water (as the one I saw was apparently doing, launching boats).
John

We paint alot of galvanised jobs and they all require light blasting to create a good profile for the etch primer to stick too.

Picked my rims up today - TOP Job, THX SpeedWayRover.

I think I made a boo-boo with the colour - it looked darker in the colour charts!!!.

I'll post some pix tomorrow.

LRH

Here we go - look good don't they: