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Old 03-22-2010, 07:34 PM   #1
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Irving , Texas
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I decided to devote 1 hr a day to polishing during the resto.
I am using a gray bar and a buffing wheel.Being short on funds I got a HF polisher 1800-3500 rpm varible speed.seems to work ok.I did try to use my 7" grinder 8500rpm.Is this too fast?
I am having trouble with removing the filiform spots.Any suggestions?
I am using a sisal buff which is a little harder than a cotton buff.

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Old 03-22-2010, 07:41 PM   #2
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1964 17' Bambi II
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Schererville , Indiana
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You could use some 2000 grit aluminum oxide sandpaper that you've soaked in water & then proceed with your gray bar. I sanded the endcaps on my trailer & used 2000 grit last. After that I used the gray bar. If the 2000 doesn't take it off, step down to 1000 & then go back up to the 2000.


1964 Bambi II
1988 Avion 32S
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Old 03-22-2010, 09:28 PM   #3
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Thanks Becky,I found a supplier for the Formax products you suggested in Dallas.The gave me a sisal buff,a medium cotton,and a floppier buff to use in 3 steps for a mirror finish,gray bar,a redish bar, and another lighter gray bar.I will try the wet sand and see.The gray doesn't seem to be getting on the wheel too well.Maybe new?Thanks.
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Old 03-23-2010, 08:15 AM   #4
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1986 34' Excella
Conroe , Texas
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You need to fluff your buff with a wheel rake before you put the compound on it. As you progress you will develop a feel when the wheel needs to be cleaned with a rake. Keep up the posts and let us know how the polishing goes
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Old 04-03-2010, 01:13 PM   #5
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1964 22' Safari
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enosburg , Vermont
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I'm also polishing now. Had a chance to spend some time with a pro at a local trucking co. after I'd already started using a disc and pad. He set me up with busch equip. I was lucky enough to already have a 3/4 hp 1800 rpm grinder, very lucky. This allows 10" pads. He downloaded & copied this info for me from Busch. Aluminum requires a buffing speed of 5000 sf/min [+ or - 500 ok]. sf/min is not r.p.m. It is surface feet per minute. sf/min = 1/4 pad diameter X arbor speed. In my case 1/4 x 10 x 1800 = 4500 sf/min, lucky! Busch Buffing Techniques uses the perimiter of the pad perpendicular to the surface, not as a traditional bonnet. In the case of our A S with a very rough skin this seems to cut the time by a third with a very nice result. Total price of the arbor, 3 pads and two bars of compound was $70.00. I have no idea how this compares to a Cyclo polisher in preformance but this system workes great on seams and around windowes, ect. Gets in close and no pad material catching. Breaks over, back to work.
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