Rust Treatment

[Kiwi Canuck]

Has anyone had experience with a product called Rust Doctor.
http://therustdoctor.com/

I have a very rusty seat pan on my 1980 GS1000S and am concerned if I removed all the rust I would not have enough metal left in some areas and wondered if something like this would work.

Any other options?

 

[Saberball]

I have used a 3M product I got from walmart that was called rust replacer. Seems like it does the same thing, you clean up the rust a little bit and paint on the stuff and it turns black then you can paint over it. I fixed a spot on my tank with it. It was a spot where the paint had chipped off from a huge dent in the tank from a PO. I didn't bother to paint but I used some clearcoat touch up paint on it after the recommended drying time.

I did that on the tank in the summer when it was nice warm dry weather and it turned out very good.

I also tried to do some spots with it this winter in a heated garage (55 ish degrees F) on the frame of a different bike. I think I did all the same prep work but it just crackled and crumbled like it dried too fast. I attribute that failure to the colder temp. So I think the idea of the stuff works pretty good as long as you have warm enough temp and humidity for it to cure properly.

 

[Bonehead]

Any idea if it would be okay to use for an exhaust? I would be skeptical because when dried, it leaves a latex primer. However, I could be wrong. Just wondering since this would be a perfect application for my rusty exhaust.

 

[Nessism]

That stuff is better than nothing, but I think you would be better off stripping as much rust as possible with phosphoric acid or media blasting, followed by sealing with POR-15 rust sealer paint. The POR-15 paint is designed to seal over rust and deny it any oxygen. Works well but it's always best to remove rust, not just seal over it or try to convert it into something else.

 

[willie]

I've wondered if sealing with fiberglass resin would be an effective and relatively inexpensive treatment. It would certainly prevent any moisture or oxygen from getting to the surface.

 

[Guest]

After sandblasting, my seat pan was left with lots of little holes. I purchased one of those 3M fiberglass mat kits from Walmart. It was very easy to use & I feel it strengthened my seat pan considerably.

 

[almarconi]

If you want to remove the rust with no danger of removing good metal then use electrolysis. It is easy to set up and works really well. Once you get rid of the rust you can patch any holes with metal or fiberglass and then paint it with a good rust preventative paint.

 

[mskiwi]

A couple of options

A couple of options

For serious work ($$$ range but long term solution)

I have used USC All Metal from Eastwood on 2-3 seat pans with great sucess. I had the pan blasted (crashed walnuts) as I wanted a clean surface on both sides. The product has the following properties:

"Ideal for repairing damaged or rotted-out sections of metal. Offers filing and sanding properties similar to lead, without the hazard. Finishes to a smooth finish and seals out moisture"

http://www.eastwood.com/usc-all-metal-2-1-lb.html

I also swear by Evaporust -- I have a 20L drum at home and amazed how many items I have restored back to new condition after soaking (cannot spray) for only 1 day. This will not damage plastic or chrome/paint etc. I have soaked complete exhaust pipes (completely removed all rust from header pipes) in this stuff for a week and they look like new after minimal cleaning. This stuff is not toxic and cleans up in water. I leave a coating on the parts if I store (drain through a mesh) to stop flash rusting)

http://www.evaporust.com/

 

[Kiwi Canuck]

For serious work ($$$ range but long term solution)

I have used USC All Metal from Eastwood on 2-3 seat pans with great sucess. I had the pan blasted (crashed walnuts) as I wanted a clean surface on both sides. The product has the following properties:

"Ideal for repairing damaged or rotted-out sections of metal. Offers filing and sanding properties similar to lead, without the hazard. Finishes to a smooth finish and seals out moisture"

http://www.eastwood.com/usc-all-metal-2-1-lb.html

I also swear by Evaporust -- I have a 20L drum at home and amazed how many items I have restored back to new condition after soaking (cannot spray) for only 1 day. This will not damage plastic or chrome/paint etc. I have soaked complete exhaust pipes (completely removed all rust from header pipes) in this stuff for a week and they look like new after minimal cleaning. This stuff is not toxic and cleans up in water. I leave a coating on the parts if I store (drain through a mesh) to stop flash rusting)

http://www.evaporust.com/

Thanks for that, I will check those products out, man I am loving this site and the awesome help offered by the members.

Thank you.

 

[Weeksz]

Por-15

Por-15

How much POR-15 would I use for my 81 GS750l tank? I'm on their website. 8oz, pint, quart, gallon?

 

[Guest]

For serious work ($$$ range but long term solution)

I have used USC All Metal from Eastwood on 2-3 seat pans with great sucess. I had the pan blasted (crashed walnuts) as I wanted a clean surface on both sides. The product has the following properties:

"Ideal for repairing damaged or rotted-out sections of metal. Offers filing and sanding properties similar to lead, without the hazard. Finishes to a smooth finish and seals out moisture"

http://www.eastwood.com/usc-all-metal-2-1-lb.html

I also swear by Evaporust -- I have a 20L drum at home and amazed how many items I have restored back to new condition after soaking (cannot spray) for only 1 day. This will not damage plastic or chrome/paint etc. I have soaked complete exhaust pipes (completely removed all rust from header pipes) in this stuff for a week and they look like new after minimal cleaning. This stuff is not toxic and cleans up in water. I leave a coating on the parts if I store (drain through a mesh) to stop flash rusting)

http://www.evaporust.com/

20 litres???? up here the largest container I've seen in just 950mls and it cost over $10.

 

[bluewool]

20 litres???? up here the largest container I've seen in just 950mls and it cost over $10.

Free Shipping in the Lower 48...

http://www.evaporust.com/evaporust.html

5 USgal 18.92 Litres.. $99

 

[cableguy]

Not sure about your application, but evaporate-rust works great on anything I've ever applied it to. For a seat pan I gues you could spray it on and keep it wet, keep wiping the loosened rust away. No worries about pinholes from media blasting. Non-toxic too.

 

[tfb]

How much POR-15 would I use for my 81 GS750l tank? I'm on their website. 8oz, pint, quart, gallon?

Well it just so happens that I've wandered in from the garage giving my GS1000's tank the POR15 treatment... and I can report that the 8oz tin does the job no worries at all.