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Old 16th June 2019, 12:35   #1
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Default Rust proofing

I've got to treat some corrosion on the R25 this summer. I was going to use some Bilthamber wax and paint on the underside: dynax S50 & UB (brushed on, unless advised otherwise - I don't have spray kit). How must would I need for a small hatch of each product?
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Old 16th June 2019, 13:58   #2
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Dynax S50 comes in spray cans with an option for a 360 degree spray lance for inner sections (access via drainhole). One can treated both my sills and a coat on the rear suspension too.



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Old 16th June 2019, 16:26   #3
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Thanks, one can of S50 then. Anyone know how much UB for the external surfaces? Thanks
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Old 16th June 2019, 17:50   #4
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Thanks, one can of S50 then. Anyone know how much UB for the external surfaces? Thanks
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Old 16th June 2019, 20:02   #5
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Quote:
Originally Posted by gnu View Post
Thanks, one can of S50 then. Anyone know how much UB for the external surfaces? Thanks
You might get away with 2 cans but 3 would be safer.

You don't need to plaster it on for it work.
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Old 17th June 2019, 11:16   #6
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You might get away with 2 cans but 3 would be safer.

You don't need to plaster it on for it work.
I agree! One can did one coat. I've used another, once the first dried (took ages) and have another part used for touching up.
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Old 17th June 2019, 11:54   #7
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Bilt Hamber sell kits here - https://www.bilthamber.com/detailing..._store=default - slightly cheaper than buying the same products separately.

2 x dynax-s50 750ml
1 x dynax-UB 750ml
1 x dynax-UC 750ml
1 x surfex HD 1L

£59.95 instead of £70.00

Which one to use where - https://www.bilthamber.com/which-cavity-wax

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Old 17th June 2019, 12:44   #8
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Spray cans are a much better bet than paint on.

The liquid will get into places that you can't see and could possibly miss.---
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Old 17th June 2019, 15:15   #9
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I will add my thoughts.

I stripped down my entire rear end, new everything apart from subframe, but all the parts I sent off for blasting, zinc priming, then finished in off-shore grade black 2pack paint. (even the new bits as the standard finish is garbage)

I then used 3M white cavity wax inside the subframe and upper arms, which worked wonderfully, and also then used Dynax-UB to coat all the steel brake lines and fittings and bolt heads under the car to prevent anything corroding.

I cannot recommend the dynax UB enough, it is great stuff. A huge can, and if you multi layer it, even if thick it dries quite clear over time so it does not really affect the look of the car.
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Old 17th June 2019, 21:14   #10
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Thanks for the advice
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