ez2cdave

When powder-coating an item, like an aluminum intake manifold, is it better to leave the surface "as-cast" or to have a smooth, polished finish ?

I want a "rough" or "wrinkled" finish on the powder-coat and I want it to be durable.

BMR Sales2

iTrader: (40)

We sand blast all the parts we manufacture to give the powder coat a nice, clean surface to attach itself to. If you aren't able to sand blast the item I would definitely clean it with some kind of degreasing solution at a minimum. Having a clean surface will allow the powder coat to stick to the item better and will offer a better overall finish.

ez2cdave

So, powder-coating adheres better to a rough, grainy surface, right ?

The reason I'm asking is that I wanted to know if a "satin" or "polished" manifold was the better starting point. I want to end up with a textured, "wrinkled finish in the powder-coat.

For an aluminum intake manifold, is there a particular type of powder-coat product I should look for ?

Thanks !

ez2cdave

A little help, please ?

BMR Sales2

iTrader: (40)

You are correct, powder coating adheres to a clean, rough surface the best.

The finish you get will be determined by the powder coating you choose to use. They have different finishes of powder coating.

A good place to start to research this stuff is www.powderbuythepound.com, they sell powder coat there and they have a good forum with solid information.

DopeFedZ

iTrader: (34)

They sell powder that leaves a wrinkled finish.

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iTrader: (1)

Just like bodywork, the finish will be the same as whatever you are covering it with, when the powder melts it is VERY thin, so if you have a crack or a fuzz, you will see the crack or the fuzz once its coated. It does not fill in imperfections or bumps. If you want a bumpy surface, Blast it with red sand and coat it, if you want a smooth yet textured surface you can buy textured powder and blast it with walnut or glass or something to take minimal material away or just clean it really well like BMR sales said.

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iTrader: (1)

Also like BMR sales said, i buy all my powder from powderbuythepound.com they have good stuff.

ez2cdave

Thank you, guys ! ! !