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Super Member
Re: 3" polisher or da sander
1500 by that 3m machine will give you better results than by hand. The sanding marks or "controlled defects" will be easier to remove on the the subsequent 3000 damp sand step. Hand sanding is not very uniform, and imo, is more likely to cause a strike through.
I'm more familiar with the meguiars system, but this looks somewhat similar.
A 1500 grit disc without an interface pad can be use for leveling orange peel. With an interface pad it will texture match better. 3000 grit will not remove orange peel but will refine the 1500 grit scratches very nicely. Definitely want to use an interface pad with 3000.
This is just personal preference, but I would not use a rotary buffer. This is the 21st century.
Meguiars MF cutting pads and m105 via a quality DA polisher like a Rupes or even the newest Griots 6 inch DA, will easily clean up the 3000 grit stage, and in most cases will only need to be followed up by one polishing step. M205 on a foam pad is an excellent choice in many cases.
Reguardless, you will need an electric machine. Pneumatic tools are good for sanding but are not great for polishing steps. You would need a gigantic air compressor. . . it's just not efficient.
With this method, you have zero chance of holograms.
Jeremy Wayne
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Re: 3" polisher or da sander
Thank you for the reply. I will look into a da polisher on the electric side then......my air compressor is a 10hp 2 stage 120 gallon. It's pretty big and would hold up to whatever I put on it for long periods of time. I will try the 1500 with the machine.
From what you said I will need 3 more machines. I would like something that will sand with 3" trizact and get in the tight spots.
Then I will need a 6" and 3" polisher. I was hoping the 2 items by 3m would do both.
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Super Member
Re: 3" polisher or da sander
Here's a great video talking about sanding and polishing with Larry Kosilla, Kevin Brown and Jason Rose. These guys are some of the best in the business.
[ame=http://www.youtube.com/watch?v=BgCmrGMhvss&list=UUYsa8SOy3TkoxI5D17s1u-w&feature=share&index=1]Best 4-Step Wet Sanding Tips: Part I. - YouTube[/video]
[ame=http://www.youtube.com/watch?v=BgCmrGMhvss&list=UUYsa8SOy3TkoxI5D17s1u-w&feature=share&index=1]Best 4-Step Wet Sanding Tips: Part I. - YouTube[/video]
Jeremy Wayne
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