Refinishing a galvanized?

[divimon2000]

How would one go about refinishing a slightly rusting galvy? Wire wheel the rust i assume, but then what? I mean is there a home galvanization product or can you paint over with something? Thanks.

 

[marine4003]

Re: Refinishing a galvanized?

Head over to NAPA.ask for some spray cans of COLD GALVANIZER,stuff isnt grey like true dip..but it works, or use RUSTOLEM METAL PRIMER..then paint over with metal paint.

 

[45Auto]

Re: Refinishing a galvanized?

Do like marine4003 says with the cold galvanize, then if looks are important to you, go to Wal-mart and get some Krylon "hammered metal" spray paint. I re-did a rusting galvinized (POORLY galvanized!!) winch bracket for a friend like that a couple of years ago and you still can't tell it from the original galvanized parts.

Make sure you get all the rust out or it'll just keep rusting through. Sandblasting is the best thing I've ever sen to clean off the rust.

 

[divimon2000]

Re: Refinishing a galvanized?

Excellent. Thanks for the tips.

 

[Gary H NC]

Re: Refinishing a galvanized?

I did mine with the rustoleum hammered metal paint and its lasted great and looks like galvanized.

 

[triumphrick]

Re: Refinishing a galvanized?

There is a treatment called POR, stands for paint over rust. It reacts with iron oxide (rust) and goes on as a primer. Then, as mentioned, use the spray cold galvanized paint.

 

[divimon2000]

Re: Refinishing a galvanized?

I do have a can of that used on my tractor and it does work. Hmmm. I do have a sandblaster too so maybe both..

 

[wca_tim]

Re: Refinishing a galvanized?

If you like the way the rustoleum hammered paint looks, get it in the can and add valspar's isocyanate-based hardner to it per the direction on the hardner can and shoot it in the backyard with a cheap harbor freight gun thined with about 10% xylenes. Note that you need a respirator just like with two part urethanes, but the result is well worth the hassle. The result will be about midway between the toughness of rustoleum and that of imron or awlgrip. it'll stand up to solvents, gas, oil, etc... lots lots better too. I did some of my seat bases with it this way and it is hanging on really well.

Not an "expert', but that's been my experience...

btw, rustoleum will not recommend that you add hardner, but based on the rustoleum paint chemistry there is not reason not to. I would bet it is a decision on their part not to include any isocyanates in their paint.