Kurust

Hey guys, just wondering if this is any good. A few people I know have suggested it, I was going to use a grinder to remove the rust but if if this stuff works it seems like a better idea. Using a grinder would thin the metal out I guess but it sounds like Kurust converts it back to metal?

 

Where is the rust?

 

Bottom the tank (not inside) and underside of the mudguards, not overly keen on grinding the rust off the tank incase i end up with a hole in it. The rust isn't terminal but I don't want to risk going to far with the grinder/sander you know?

 

Don't use a grinder. Use a rust remover with phosphoric acid.

By the way, its impossible to convert iron oxide (rust) back into iron!

 

Unless you have a nuclear reactor, and lots of money

Rust can be converted to ferric tannite by using a commertially available rust converter, but those are really only useful for surface rust. Use a wire brush to flake the loose rust away, then apply the rust converter, and repaint.

Post up pics of the rust areas. There are several good methods to attend to the problem, but which method to choose depends on how advanced the rust is, and what you want the final results to look like.

 

well not kurust, but jenolite, it contains phosphoric acid, it bites into the rust,
best to wire wheel it first with a brass wheel
paint it on, its just like pink water
the rusty bits will turn darker.
heres a frame i did, it makes a good base to paint over.


then a coat of hamerite rust eater


then a few coats of primer


then top coat and clear coat



jenolite should be available at most good auto stores, motosave has it


cheers
stu

 

The entire iron age would beg to differ.

Iron comes out of the earth as iron oxide, and eventually it returns to the earth as iron oxide. We humans just borrow it for a short period of time!

 

Yeah yeah whatever For this exercise, rust converter doesn't convert his rust back into iron ok?

 

actually it comes out of the earth as "iron ore" and then it returns as iron oxide.

CN

 

Yeah it is for the most part surface rust. I've seen pictures using Kurust and it turns the rusty area black ready for primer & repaint which was my intention. I've been given some for free so thought I'd get opinions before I attacked my tank with it.

My mudguards do need a bit of welding so it's a bit worse than surface rust but will speak to my welding buddy before I do them and get his opinion. I will post some before and after pics here for you guys

 

Maybe it will make more sense if you hear if from the USGS instead of me. From >> http://minerals.usgs.gov/minerals/pubs/ ... /iron_ore/:

"Iron ore is a mineral substance which, when heated in the presence of a reductant, will yield metallic iron (Fe). It almost always consists of iron oxides, the primary forms of which are magnetite (Fe3O4) and hematite (Fe2O3)."

But in any event, that is most certainly a true statement! Rust convertor will not convert his rust back to iron. Haha.

 

We have similar products here in the States and for light to medium large area surface rust (like inside fenders, the inside of the headlight shell, etc.) it works quite well.

I've never seen one of these bikes yet that didn't have surface rust on the inside of the headlight shell. On all of mine, I used a rust converter and then painted them to halt the rusting-away process.



(ignore the colored circles and labeling, the pic is from another article.)

 

that's beautiful Fitz. i painted one of mine black too, then the next time i took it apart, in not so perfect light, i realised it should have been white

 

Is that so, Polock, every one I've opened up seemed to be a ginger colour. ;o(

 

Sounds like the stuff you've used is similar. My headlight bowl needs replacing it's not just ginger, it's holey enough to be God's right hand man!

 

Rust converter works well; converts it and locks it off from the atmosphere. Re-paint and good to go, but with k-moe wire brush 1st and depends on the severity.