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Old 09-22-2010
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Rust Stain on a sail

I just discovered a small rust stain on my main. I furl it in flakes across the boom and that's where it was when this stain appeared. I don't know what caused it. The aluminum boom is painted (awl-grip) and there is only aluminum and stainless hardware anywhere near it.

What can I do to clean this stain? Is it safe to use Naval Jelly on the dacron sail? Is there anything else that will clean the stain?

Thanks,
Harry
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Old 09-22-2010
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Any cleaning compound containing OXALIC ACID will instantly remove rust stains.
Oxalic will also remove tannin staining which also 'looks like' rust stains.

Go to a paint or hardware store and buy 'wood bleach' crystals which is the cheapest form of oxalic acid.

Oxalic will also quickly remove tannin staining ('moustache') of the boats waterline. Use gloves when using oxalic or you will seriously harm your kidneys.
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Old 09-22-2010
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HSH—

I'd pong out that stainless steel is just that, stain less, not stain free...and can bleed rust, especially if left in contact with a wet sail.
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Old 09-22-2010
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Quote:
Originally Posted by sailingdog View Post
HSH—

I'd pong out that

Wow, SD, considering how often you use the phrase, "I'd point out that...", I figured you just had a macro button for it. Looks like you're still hand typing it after all! ;-)
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Quote:
Originally Posted by lydanynom View Post
Wow, SD, considering how often you use the phrase, "I'd point out that...", I figured you just had a macro button for it. Looks like you're still hand typing it after all! ;-)
I was just seeing if you were paying attention. I'm turning the macro back on.

Too many people think that stainless steel can't leave rust stains, which is clearly not the case.
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Old 09-22-2010
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Would Spotless Stainless work in this application? Would it be any easier on the sail material?
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Old 09-22-2010
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Quote:
Originally Posted by sailingdog View Post
Too many people think that stainless steel can't leave rust stains, which is clearly not the case.

This thread
really opened my eyes to why rust forms on stainless, when it does, and what can be done about it.
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Old 09-22-2010
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I leave stains alone. Cleaning them might hurt the cloth whereas rust stain won't, and anyway, it's a sign of an 'experienced' sail.
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