General Rust Treatment Options

[ChrisPaegelow]

Hey guys, this is a general question about taking care of rust.
This isn't a 914 now, but my motorcycle, an '85 Honda Interceptor 500.
But rust is rust I guess! (IMG:style_emoticons/default/chairfall.gif)

Anyway, this is about the only rust on the thing, so it's really the first rust I've ever had to deal with (and it certainly won't be the last (IMG:style_emoticons/default/w00t.gif) )

So I want to make sure I do everything right!

Here's a picture of the rusty stuff:
(IMG:http://img.photobucket.com/albums/v341/BiggieTheSpaceman/Interceptor/Honda_Rust_1.jpg?t=1171126262)

And a close up:
(IMG:http://img.photobucket.com/albums/v341/BiggieTheSpaceman/Interceptor/Honda_Rust_2.jpg?t=1171126629)

So, I want to treat the rust on the center stand there, and on that other thing, which my shop manual calls the 'common collector.' I dunno what else to call it, the exhaust pipes from the engine go in one side and the mufflers come out the other side. Pretty simple. Whatever (IMG:style_emoticons/default/yawn.gif)

So anyhow, I can get both pieces off pretty easily, but from there I don't really know what I'm doing.

My dad has a little sandblaster that I can use, and plenty of that POR-15 stuff to spray on the rust.

Then I'm assuming I'll need primer and paint. I'm thinking I'll paint both parts glossy black, like the tailpipes you can see there, since that's what they originally were. Any recommendations on specific brands, types, etc? (IMG:style_emoticons/default/confused24.gif)

I think, while I'm at it, I might just repaint the mufflers too, because they're kinda scuffed up. Would I have to remove the paint that's already on them first, or what?

Guys, please just assume I have no idea what I'm talking about, cause I'm pretty new to this stuff!

But hey, I'll figure it out (IMG:style_emoticons/default/flag.gif)

I know for you guys this is little kiddies play, I just want to make sure I'm doing everything correctly!

So any bits of help would be appreciated!!! (IMG:style_emoticons/default/pray.gif)

Thanks,
Chris

[scotty b]

Center stand = sandblast and get it powder coated. $30.00
Muffler = sandblast and get it ceramic coated $50.00-$100.00 depending on the shop (IMG:style_emoticons/default/sheeplove.gif)

[ChrisPaegelow]

What about the common collector? SHould that get the same treatment as the mufflers?

[scotty b]

Yes, shouldn't cost much more to include that in with the muffler.

[ChrisPaegelow]

Ok sounds good, I will go find a place to get that stuff done!

Thanks!

[ChrisPaegelow]

BUT, is there any way to do any of that myself?
I'll go and get them done if I have to, but I prefer figuring stuff out and doing it on my own (IMG:style_emoticons/default/biggrin.gif)

[Rusty]

You can do powdercoating yourself... there is a thread in the Classics Section about it. Some jackass's first time using his new PC rig. (IMG:style_emoticons/default/biggrin.gif)

Eastwood sells a rig, and so does http://www.columbiacoatings.com/

I'm a fan of Columbia stuff. Nice small-business to deal with.

[ChrisPaegelow]

Can you powder coat a whole car instead of painting it? Or would that just be dumb? (IMG:style_emoticons/default/huh.gif)

[ChrisPaegelow]

Ok anyway, what do I have to do to the parts before they can be coated? I can sand blast the rust off, but do I use POR-15 on it , or no?

[MrKona]

Can you powder coat a whole car instead of painting it? Or would that just be dumb? (IMG:style_emoticons/default/huh.gif)

Check out this link.

I once asked my local powder coater about it. He said he's done it once. It was very expensive, but the car still looks great!

[sww914]

You gotta find an oven big enough to fit a whole car in to bake the powder on.
I think that automotive paints are better for painting cars than powder coat, it's made for that. I've seen cars that were painted 20 years ago that still look great, but I can't think of anything powder coated that still looks great after that long.

[Rusty]

Ok anyway, what do I have to do to the parts before they can be coated? I can sand blast the rust off, but do I use POR-15 on it , or no?

Blasting it yourself will save you some money. A good powdercoater will wash the the items with a phosphoric acid based solution like Ospho.

Did you read the Powdercoating thread(s) in the Classics section? Prepwork is discussed there.

[Rusty]

You gotta find an oven big enough to fit a whole car in to bake the powder on.
I think that automotive paints are better for painting cars than powder coat, it's made for that. I've seen cars that were painted 20 years ago that still look great, but I can't think of anything powder coated that still looks great after that long.

Also, how would you do individual panel repair? (IMG:style_emoticons/default/blink.gif)

[swl]

Ok anyway, what do I have to do to the parts before they can be coated? I can sand blast the rust off, but do I use POR-15 on it , or no?

If you are going the POR route check the manufactures instructions. Basicly:
Clean thoroughly and remove all loose paint and scale.
Degrease
Use metal prep to stabilize any rust and to etch bare metal
paint with por 15
Since this stuff is exposed to sunlight you then would have to apply a top coat.

por is not designed for exhaust components - it won't stand up to the heat. They have a separate high temp paint. I don't know if even that will hold up to exhaust temperatures.

The por regime is not cheap and por15 itself does not keep well. Normally you write off a can once you are done (I've had some luck with using plastic food wrap and keeping it cool)

Put all that together and having someone powder coat it for you starts sounding like the cheapest way to go.

[ChrisPaegelow]

Ok, so can you use high-temp powder coating on the exhaust parts instead of ceramic coating? Or is ceramic still better?

[sgomes]

All modern Ferrari's are powder coated.

[scotty b]

1= sandblast and powder coat with nothing inbetween. Any type of paint under the powder will seriously f-up the coating.Paint cannot withstand the temps required for the powder to flow out.

2 = Ceramic is the BEST for exhaust but powder MAY hold up. I personally haven't tried the high temp powder as we do ceramic anyway

3= Yes a whole car can be coated I will be posting pics of a Mazda I am currently doing at wwerk that we coated the WHOLE inside of. Roll cage and all. Look for a thread by me with SEMA (IMG:style_emoticons/default/ph34r.gif) in the title. I'' attach a teaser pic for ya (IMG:style_emoticons/default/smile.gif)

[Rusty]

I would disagree with number 1.

Washing with Ospho or some other phosphorus based treatment before powdercoating will help control micro-rust below the powder coating.

In fact, that's in the instructions with the kit I received.

[scotty b]

I would disagree with number 1.

Washing with Ospho or some other phosphorus based treatment before powdercoating will help control micro-rust below the powder coating.

In fact, that's in the instructions with the kit I received.

I was refering MAINLY to paint as he asked about applying POR-15 before coating. (IMG:style_emoticons/default/dry.gif) Althoug I have yet to see rust come through a well sandblasted part, and most of what we do is outdoor. Differentials, frames, handrails, gates.....you get the idea

[ChrisPaegelow]

so there's no need for POR-15 when powder coating in other words?