Touching Up Rust Spots

[jyl]

I have this rust spot on a bike. I want to put some rust neutralizer on it, then use automotive touch up paint in pearl white.

Any suggestions about what neutralizer to use?

And sources for touch up paint?

[onewhippedpuppy]

POR15 is awesome stuff, it dries rock hard like an epoxy.

[azasadny]

I've used POR15 and have been very happy with the results. Follow the instructions carefully and be sure to pour what you need out, seal up the can ASAP and don't pour excess back into the can. I used the POR "prep", followed by the gray POR-15 topcoat and it has done it's job on the pool sides, exposed steel pipe, garage door, bottom of rusty car doors, etc...

[Zeke]

Treat the rust with phosphoric acid, neutralize with baking soda. For a small job, I would buy the little can of Rustoleum red oxide primer but others will do.

If it's a small spot, use Testors from the hobby shop for the finish coat.. I managed to paint some fake 914 signal lights with just one bottle. It's like one ounce. You can get a self propelled spray bottle.

[jyl]

Thanks. I ordered some POR15 as I've always wanted to try this stuff that so many swear by. And I'll go to the hobby shop and mix up the exact color w/ Testors. I don't know if I can get the "pearl" part right, but at least I can match the "white".

[jyl]

I'm trying to fix this spot

[RWebb]

I use "The Zeke Method" but just use a commercial Rust Reducer instead of his less expensive products -- but the spot will not be smooth - do you care?

You'd have to use filler, sand over & over, etc. for that.

[Zeke]

I'd sand blast that little spot. It will be clean and even feathered out a bit. If you have a compressor but don't have any sandblast stuff, look on CL for a little cup (gravity feed) blaster.

Or this little guy for 15 bucks.
Abrasive Blast Gun with Bag

If you have an air nozzle, you can just about do that job with some fine sand in a jar and a small hole punched in the lid. Simply drop a column of sand into the air stream in front of the spot.

[enzo1]

Originally Posted by Zeke

I'd sand blast that little spot. It will be clean and even feathered out a bit. If you have a compressor but don't have any sandblast stuff, look on CL for a little cup (gravity feed) blaster.

Or this little guy for 15 bucks.
Abrasive Blast Gun with Bag

If you have an air nozzle, you can just about do that job with some fine sand in a jar and a small hole punched in the lid. Simply drop a column of sand into the air stream in front of the spot.

Zeke, why couldn't he use sandpaper... just asking

[Zeke]

He could. Good point. A Dremmel would be great.

SB does dig out the rust from the pores, so I still am prone to touch up the area with SB if I can.

[jyl]

My compressor is broken. I have a Dremel. Figure I'll use the Dremel to dig out the worst bits, use the POR15, repeatedly if needed to fill the spot, sand smooth, then touch up w/ the Testors. Maybe a bit of clear over the color.