Where did I get it wrong?

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sphell

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After a small spending spree at the Autogeek store, I was excited to try polishing the bonnet (hood) on my wife's black 2013 Mercedes B180.

I got it looking perfect under the garage lights, flood lights and my LED torch, but was shocked to walk past it yesterday while the sun was out and noticed buffing marks (holograms?) in the paint.

I'm just wondering where I went wrong? I initially used Menzerna SF4000 on a white Lake Country flat pad with the DA on the highest setting and it didn't seem to have much bite.

I had some 3M Perfect-It No.1 Rubbing Compound laying around, so I used that with the white pad then switched to the Menzerna on a black pad to finish it off. This seemed to do the job under the garage lights and the paint looked crystal clear (I couldn't see any holograms until it was in sunlight).

I'm wondering if it was my technique or choice of products? Would Menzerna SF2500 on an orange pad followed by SF4000 on a white/black pad give the results I'm after?

Any advice would be appreciated!
 
What may have happened is the 3M compound left some unwelcome results and using the SF-4000 with a gray pad didn't possess enough cut to finish it correctly.

On a 12" X 12" area I would try Menzerna SF-2500 on an Orange foam pad speed 5. Do 3 or 4 sectional passes then switch to Menzerna SF-4000 and a White foam pad speed 5 and perform the same number of sectional passes or until you see some improvement.

If you need additional refinement switch to a gray pad with the Menzerna SF-4000 and keep your arm speed intentionally slow as this pad has no cut and the product needs more time to work...
 
Isn't that 3m product for rotary only? Your da may not have been able to use the product up and left you bad results.

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I believe it is recommended for rotary use only. I would definitely try out PF2500, following up with SF4000. I bet you will get the results you're looking for then.
 
Yes after looking at their site I believe the 3M is recommended for rotary use! I do have a rotary as well but the paint is in very good condition already so I think that might be a bit extreme to hit it with the rotary! I'll grab some PF2500 and an orange pad then:) Thanks for the suggestions!


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