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Well here comes decisions, my intake is sanded down to 400, should i go ahead and finish the job off until the 1200 wet, or should i just use the chrome can? how good is the chrome cans, i've never used them before.

 
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I have done it, if I had to do it again I would not use that . It gets dirty and everything sticks to it. Also, if you are like me and always wrenching under the hood, the paint chips very easily from tools hitting it. Looks like ***. Just polish it and clear coat.

 
Rep Power: 733

oight thanx for advice man.

 
Rep Power: 725

sand it up to 800 and then buff it
n00b
DONT clearcoat

 
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I would assume you would have to coat it with something. It WILL get dirty as if the metal is not treated. Espeically anything that isn't aluminum.

 
Rep Power: 725

If it's aluminum, it's better not to. Polished aluminum doesn't really tarnish that fast. The finer the buff, the longer it lasts. It just needs a rubbing with mag cleaner every season.

Clearcoat... A) chips real easy when applied to something polished
B) yellows from the heat

the only time I would clearcoat anything under the hood is if it's magnesium, because that will tarnish in a week