View Full Version : Rotary and Pressure

Aug 2nd, 2006, 04:57 PM
How much pressure for removing heavy defect removal? Medium? Light?

Any help is appreciated


Aug 2nd, 2006, 05:11 PM
I'm no expert, but from what I understand you just use the weight of the machine and just guide it. Its worked for me.

Aug 2nd, 2006, 05:12 PM
That's how I've been practicing, Was just making sure I wasn't doing anything wrong

Sep 15th, 2006, 11:44 AM
as far as my experience goes, pressure is more optional. some people will tell you that you should use light pressure, others medium, but no one will tell you to use heavy pressure cuz that'll assure you a paint burn. Scottwax1

Heavy defects usually are removed with medium pressure. light pressure should be used in vertical panels (something else than the hood, roof or trunk), but still you have to evaluate how bad these defects are, because maybe you'll be needing some wet sanding. As far as I remember, the PES video tells you that removing defects like stains, scuffs, mars, acid rain or chemical etching, etc, should be removed with #83 or higher (84 or 85 and the combination of wool or foam cutting pads).

when polishing, light pressure would work way good. If you use the 3M system, the tutorial tells you that you should aplly enough pressure to the foam pads at the point where the convolutions (waffles) are completely flat, and then after removing the defect, lighten up the pressure and work with the convolutions :P

orange peel, runs, sags, and those kind of defects are better to correct with wet sanding. BTW, what kind of defect are you trying to remove? that would help me suggest you something with more precision.

oh...and also in my experience, applying pressure to a wool pad will result in deep buffer swirls :LOLOL:

Hope this helps.

Sep 15th, 2006, 02:32 PM
What is the PES Video?

Sep 15th, 2006, 09:59 PM
It's the Professional education series video from meguiars. It's got lots of good info, tips and tricks to remove paint defects and to polish to a high gloss. If you want to learn more specific things, even wet sanding, I think this video will work good for you.

in my experience, once I bought it, my jobs came with better results and once you master most of the techniques, compounding and removing swirls becomes less of a pain :)

the video was once online for free, but they don't have it anymore at autopia.

Sep 16th, 2006, 03:44 AM
I have been trying to get it from there and at the megs site too. No luck

Sep 18th, 2006, 09:43 AM
where can this video be purchased/seen?