Technical Powder coating question on Aluminum

I have an Al intake I cleaned up in my blasting cabinet. I'm going to order a powder coating kit and put an old oven I have to use.

The question I have is will the porosity of the Al show with the coating, or do I need to polish the intake first?

Thanks

 

Lay it on nice and thick and it will "flow out". Practice on some scrap first. Make sure you bake the intake first to let it outgas!

 

Kind of like paint. It will show what's underneath.

 

Knock em down with 80 grit if you like 'em silky, smooth the sharp edges and remove the logos , no need to polish.
This is 80 grit finish

I was going to powder coat but I rattle bombed mine instead with Eastwood 2K Ceramic gloss black engine paint to match the block and trans.

 

Really good job Billy,
Looks a lot better than the factory new surface .

That’s your low deck engine isn’t it,,,,,,291,,,, looks just like a piece of art !
Or is that your 330 ?

Tommy

 

pre heating before layin on the powder will stop the bubbling and give better adhesion long run .

 

Used intake?
Heat it up in the oven and see if any old oil residue comes to the surface before you coat it.

 

Had it done by a friend, came out very nice. He did preheat as said above. Probably doesn't hurt that he does it for a living too.

 

Thanks all for the advice.

Yes it's a used intake.

How long should the preheat be for?

 

330 tall deck. And thanks. That is high praise from a Desoto fan.
@Budget36 make sure you post up some pics of the before and after powder. Maybe I missed it but what color are you doing?

 

@Bandit Billy I'm not sure on the color yet, possibly a deep blue.