Classic Audi Community General Chat » Underseal/Wax

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Old 27-07-20, 07:28 PM   #1
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Default Underseal/Wax

Hi all,

Just wondering what people use as under-seal and cavity wax. There's so many different products out there I haven't the foggiest which is best, or even had much experience with such products.

I have been touching up the under-seal on the sills and underside of the car for a few years with the black Hammerite waxoyl stuff that I apply with a paint brush, but I have seen various products that can be sprayed on to give a more comprehensive coating.

What do you guys use, do you have any recommendations or cautions?

I would also like something to spray into the box sections of the chassis and sills, I noticed when doing the subframe there's some rubber grommets/bungs etc that can be removed to gain access, I would like to spray something inside if possible.

Any thoughts?

As always any suggestions greatly appreciated.
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Old 27-07-20, 07:52 PM   #2
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This'll get into yer cavities!......
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Old 28-07-20, 09:01 AM   #3
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I use Waxoyl (warm the can well before hand) with one of these
Just make sure you cover the garage floor well
Coupe Quattro 1985
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Old 28-07-20, 10:00 AM   #4
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As John says, Bilt stuff is very good. Rustbusters is good as well.I have used both and no complaints
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