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Old 25-05-2008, 15:13   #1
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Foggy compass dome? Try Brasso!

Unless the plastic has been fogged up below the surface, it will clear it right up. I had a binnacle compass that was unprotected from the sun... 24 year old Florida boat that I recently acquired. The compass dome was so opaque that the numbers were tough to read. I figured the dome had to be replaced.

I got on the phone, looking for a replacement dome or repair. Called Viking Compass Repair..


The gentleman there quoted me a price for the repair that made buying a replacement compass a better option. He also told me that it was tricky enough repair that buying a replacement dome from him was not advisable.

Just before hanging up I asked him if there was any way to clear the dome up and that's when he suggested trying Brasso.

Thirty minutes later, the compass dome was pretty much completely transparent!

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Old 25-05-2008, 18:45   #2
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I agree, I love brasso!! Nice to know that it works on that too!!

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Old 26-05-2008, 08:02   #3
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Originally Posted by shadow View Post
I agree, I love brasso!! Nice to know that it works on that too!!
I must admit, this was probably the fIrst time I've used the stuff since I was in the USNavy, decades ago. Polished the brass belt buckles with it back then.

OK so I can see using it on bow and stern pulpits and any other stainless that's visible. Where else do you use it?
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Old 26-05-2008, 08:48   #4
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Old 26-05-2008, 22:46   #5
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You can also get cutting compounds specifically for plastics. Great for taking the haze out of windows etc. and good for the compass too.

For God so loved the world..........He didn't send a committee.
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Old 27-05-2008, 02:47   #6
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Whether you use Brasso, toothpaste, or one of the commercial plastic polishes to clear up the haze, the technique is largely the same.
Just put some on a small cloth and use it as if you were using a very fine rubbing compound, turning the cloth as needed and re-wetting with the polish, then finishing with a clean, dry cloth. Repeat until any haze, scratches, and pitting disappear. These products generally are very fine abrasives, not just cleaners, so they actually grind out the scratches and pits, with a little bit of effort.
After polishing plastic parts, often the plastics haze over much quicker than they did originally. This is because the manufacturer coats the lens with a protective layer, which polishing removes.
Some of the polishing kits have a final protective coating you put on, after polishing. You can also use a product like 303 Aerospace Protectant or paste wax. These after-treatments may help the repair last longer.

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