Jump to content
Sign in to follow this  

Need a durable way to paint aluminum

Recommended Posts

I repainted my rear brake resevoir protector, but it chips from my boot hitting it. Does anyone know how I could paint or coat other then then taking it to a paint shop that will make it hold up to abuse?

Share this post


Link to post
Share on other sites

I would try to find a place that does anodizing. The finish looks great and is an oxide layer that is actualy stronger thatn the aluminum its self.

Share this post


Link to post
Share on other sites

For just the one piece I would go powder coat, it's cheaper and it would be very easy to find someone locally to do it. If you can get a bunch of other parts together that you want to get coated at once then go anodizing, plus I think anodizing looks cooler.

Here's a link to a forum with some people discussing anodizing vs. powder coating

http://www.xtremesystems.org/forums/showthread.php?t=195765

Share this post


Link to post
Share on other sites

I've read that aluminum needs an etch primer to bond well. Like vari-prime or I've found zinc phosophate primer in the rattle can that works pretty good.

Share this post


Link to post
Share on other sites

go to a paint shop (auto) and ask them a zinc-phosphate, or a zinc-chromate.(no idea how to spell it) Both are self etching, but one holds up better but I don't remember which one.

Share this post


Link to post
Share on other sites

Ideally you alodine then prime then paint.

Alodine is an acid wash (etch) that removes the existing oxide layer, then a zinc chromate primer, then whatever decorative paint.

Before it starts, you strip the oxide layer off. Then when the etch solution is neutralized a new one forms of a more uniform thickness allowing consistent primer bonding and better corrosion control properties. The zinc chromate provides the corrosion control characteristics of the primer.

RV shops typically carry the stuff.

I gave up on the link.......

If you really care go to the RV shop. If you have money and want durable go powdercoat. Too much money / bling. Anodizing. :)

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Reply with:

Sign in to follow this  

×
×
  • Create New...