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Old 22nd May 2018, 09:36 PM   #1
bav1973
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Default First DA polish of the M - Any pointers?

Hi all,

I've finally bought myself a DA polisher and got a good deal on a Rupes LHR15ES2 Bigfoot. I'm starting to watch some videos and read up on the process, especially the advice to start on the lowest compound and work up as required.

I'll be testing it out on the wife's battered Golf first amongst others and getting some experience..

Any advice as to areas to watch out for on the E92 M3? I seem to remember something about different materials being used on panels to save weight so any tips on spots to avoid or pay particular care to etc would be helpful.

Many thanks!
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Old 23rd May 2018, 07:02 AM   #2
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Use small pads for areas like round the bonnet bulge, front bumper, rear bumper.

Get a metal halide light, if you haven’t got one, and also some isopropyl alcohol to clean off polish residue to check for remaining defects, sometimes hidden by polish “fillers” depending on the polish

Menzerna polishes are good for hard BMW paint.

Last edited by AMD; 23rd May 2018 at 07:04 AM. Reason: Spelling
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Old 24th May 2018, 06:25 PM   #3
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I have just done mine recently and have played with a DA for a few years by no means an expert.
Fully prep the car before with a 2 bucket method and tar removal and then go over the car with a clay bar to remove all imperfections.
Once you're happy start with the lowest grade pad and lowest polish and it'll be trial and error at first and keep going until you find the right pad and polish combination that removes the defects(swirls) and then slowly work you way back up to the finer pads and polishes/ sealants.
When using the DA don't apply to much pressure or be firm the whole point of the DA is to let it do the work. Just keep it moving and keep the pads clean after each panel.













The above was machined with mezerna polish 2 & 1 with a hexlogic green (medium/light cut) pad and then topped up with britemax extreme elements with a hexlogic black pad (finishing) then finally topped off with absolute wax Hard wax.

Let me know If you need anymore help. Best of luck and everything is in the prep work

Last edited by zulfario94; 24th May 2018 at 06:37 PM.
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Old 30th May 2018, 04:03 PM   #4
bav1973
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Thanks for the advice guys, I'm hoping to get a chance to try this week. Great job on the e46 btw
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