"Cover Passes" explanation please..

[Mary S]

Re: "Cover Passes" explanation please..

if we can get this guys who had success in using UC with rotary to share their steps with us, that'd be great!!

If I recall, and I have been accumulating my stuff at a real snail's pace, but when I was using UC with the rotary, the only pads I had were the 8" twisted wool ones. If I had the others, I did not use them at the time. The wool might be a bit cooler than a foam pad.

[Perfectshine]

Re: "Cover Passes" explanation please..

Mary S, I have a black evo 9 that I'm detailing right now. The finish is full of swirls and medium scratches. I decided to test the UC a go with the rotary on a 8006 pad. Worked under the halogen light, and started buffing on 1800rpm. Wiped off, and the swirls are gone and cleaned. It was almost a perfect finish. Hit it again twice and the scratches are out and I was left confused on how good UC is with the rotary. It didn't even dry up after quite alot of passes.

Next, I decided to try the swirlX on the rotary with the 8006 pad/1500rpm. It was bad, it instilled it's own light scratches no matter if I put alot of pressure or at no pressure. Was dissapointed that it didn't work ou,t as I really liked the gloss that swirlX gave to the surface. Tried it with 9006/rotary, 9006/DA, 8006/DA. All failed to give a perfect finish. I'm going to try to finish with #80/rotary/9006 just to bring the gloss more.

UC FTW!

[Mike Phillips]

Re: "Cover Passes" explanation please..

When I re-wrote my original article on using the G100 becaues there are often questions about what a section pass is I wrote out my own definitions for the article and now use them in all my articles and videos... feel free to come up with your own but here's mine...

Exerpt from a really long article...

Overlap your passes by 50%
After you spread the product out, now it's time to slow your Arm Speed down and begin making overlapping passes usually in a crosshatch or back and forth, side-to-side pattern.

The goal is UMR, that is Uniform Material Removal.

The reason for this is so that you remove an equal amount of paint over each section and in turn over the entire car. In order to do this you need a method that you can control and duplicate and for most people following a back and forth, side-to-side pattern works because it’s easy to remember, easy to do and easy to duplicate.


The definition of a pass
There are two definitions of the word pass as it relates to machine polishing with any type of machine.


Single Pass
A single pass is just that. It's when you move the polisher from one side of the section you're buffing to the other side of the section you're buffing. That's a single pass.


Section Pass
A section pass is when you move the polisher back and forth, or front to back with enough single overlapping passes to cover the entire section one time. That's a section pass.