Hard Paint

[janisary77]

I am a novice car enthusiast from Turkiye. I own a 2008 model white bmw320 cd. The car has a lot of swirls and scratches on the paint. I use DA to remove these defects along with m80 83 and lastly m105. However after 3 or 4 passes I still see the scratches and even the swirls on the paint. Is it a good idea to pass to rotary buffer?

[Mike Pennington]

Re: Hard Paint

Tough call, but here are a few questions that will help us answer your question...

What pads are you using?
What machine are you using & what speed on the machine?
What is your skill level (have you used a rotary before)?
What are your expectations? (Good finish, perfect finish etc...)
Do you have any pictures you can post?

In order to give the proper advice, we really need some more info

[janisary77]

Re: Hard Paint

Dear Mike

I use g110 with w8006 foam polishing pads at speed 5 as directed
I have never used a rotary before and expect ot have perfect finish do I expect too much )))

[Michael Stoops]

Re: Hard Paint

It is important to make sure you're using the G110 properly, and not just at speed 5. Take the following points into consideration when making another attempt with M105 and the W8006 polishing pad as these overcome the most common mistakes people make with this tool:

• Apply enough downward pressure to deform the pad a fair amount, but not enough to stop the rotation - putting a couple of hash marks with a Sharpie on the back edge of pad will give a good visual indicator of pad movement
• Keep the pad flat against the paint - tipping onto an edge won't do any damage with the G110 but it will stop the pad from rotating
• Concentrate on a small work area, no more than 50cm x 50cm and overlap your passes by 50% - cover the whole 50cm x 50cm work area in horizontal strokes, then vertical strokes and repeat both sets; that should get you to a point where it's time to wipe off the remainder of product (which shouldn't be much at all by this point)
• Move the machine s-l-o-w-l-y over the paint, something like a couple of inches per second is all. Take your time, let the machine do the work but give it time to do so.
• Don't overuse product; a circular bead of product no more than 6mm thick toward the outer edge of the pad, or in an "X" shape through the center of the pad, is all you need

Even then, if the paint is particularly hard, you may need a couple of passes with the G110 and M105. But if you aren't following the above guidelines you likely won't make much headway in the first place.

[janisary77]

Re: Hard Paint

thanks for the advice I'll give it a try and let you know the regards