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  #11  
Old 12-07-2012
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Re: Bright work buffer

Quote:
Originally Posted by treilley View Post
Dave, I think you mean Makita 9227. Minkota makes electric trolling motors.
Hey, if you can make a margarita mixer out of a weed whacker, you should be able to buff a boat with a trolling motor.
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Old 12-07-2012
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Re: Bright work buffer

I'll just +1 the Makita, mine is a beast. I will say that it is maybe a little heavy, and it has so much torque it can be downright scary sometimes. But it's hard to say those are really defects.
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Old 12-07-2012
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Re: Bright work buffer

I would urge caution on a rotary buffer for those not experienced with it. Varnish is a lot softer than gelcoat or an acrylic urethane or even automotive paint and is quite susceptible to friction generated heat..

It can easily be machine polished but I would suggest a random orbit machine with some Lake Country CCS foam "finishing" pads rather than an orbital with wool..

Porter Cable, Griot's Garage, Sure Hold and Meguiars all have excellent random orbit or "dual action" machines. I recently replaced my trusty Porter Cable RO with the Griots Garage model and prefer it over the PC 7424 machine.

The Makita is a WORK HORSE, great for gelcoat, light weight for its design and has a great "slow" speed, but is not really necessary for finishing varnish and you'll have a lot more room for error with it than you will with an RO/DA machine..

I buy lots of my supplies from AutoGeek.com (except Presta). They have all four buffing machines mentioned plus the Lake Country CCS foam pads. I've used just about every brand of foam pad but never had any as good as the Lake Country CCS pads...

Lake Country Foam Pads (I use the CCS pads)

Griot's Garage 6" Random Orbit Polisher

Porter Cable 7424XP Random Orbit Polisher

Meguiars G110v2 Random Orbit Polisher

Sure Hold Random Orbit Polisher
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Old 12-07-2012
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Re: Bright work buffer

Thanks MS. The random orbital polishers seem to spin at much higher RPMs, which seems counter-intuative to reducing friction heat.

I think the specs for the 3M polish calls for sub 2000rpm, but maybe that doesn't matter as much with these.
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Re: Bright work buffer

Take a look at Tyler Tool. They carry lots of factory reconditioned quality brands like Makita, Dewalt, etc.

I bought my 9227 from them for way less than factory new and am very happy with it.

They currently don't have reconditioned 9227's but the do have a similar Dewalt model and they have factory new 9227's with polishing kit for $199. I want to say I paid about $140 for the same thing reconditioned.

They may well have a deal on something that would be better suited to your current task for much less than something as poweful as a 9227.
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Re: Bright work buffer

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Originally Posted by Minnewaska View Post
Thanks MS. The random orbital polishers seem to spin at much higher RPMs, which seems counter-intuative to reducing friction heat.

I think the specs for the 3M polish calls for sub 2000rpm, but maybe that doesn't matter as much with these.
That is the spindle speed the pad does not spin that fast when on the surface and makes random orbits to avoid swirls. They are much easier to run cooler, for a novice, than an orbital. Just like a RO sander is not spinning on the wood at the RPM of the motor the RPM of the pad is not what the machine is rated at........

Watch the actual rotation speed of the pad in the beginning of this video... it is not the speed of the motor...

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Last edited by Maine Sail; 12-07-2012 at 05:45 PM.
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Old 01-01-2013
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Re: Bright work buffer

Mainesail,

I'm getting closer to the polishing, but am getting a headache with all the polish pad options. Thought I would get the Griot's garage 6" polisher you recommended, but then have no idea which pad cuts to use. I see the CCS pads that you like, then there are CCS Smart Pads and about 6 different kinds beneath each. I am top coating with Interlux Perfection Plus, a two part urethane and want to buff out imperfections and polish to gloss.

Also, AutoGeek recommends a 5" head, while that model comes with 6". That really matter?

Help appreciated. Ready to order.
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Old 01-01-2013
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Re: Bright work buffer

Polishing size really doesn't matter. The ability to turn down the polisher to relatively 'slow speeds' is a plus, especially if you have little experience in polishing/buffing painted or coated surfaces. Dont 'burn' (over-heat) the finish with a polisher.

Last edited by RichH; 01-01-2013 at 09:09 PM.
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Old 03-17-2013
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Re: Bright work buffer

I'm getting close to buffing. If you haven't read my other post, I've ultimately taken the table down to bare wood and rebuilt with Epifanes clear gloss. I'm on coat 6 or 7 (sort of lost count) and thought I would experiment with the buffer, while I still intend to put another few coats.

First, I bought the Griot's 6" random polisher with an orange and light green CCS pad. See these at bottom of page:

http://www.autogeek.net/constant-pre...-6-5-pads.html

I first wet sanded with 1500 grit. This easily took out the fine dust particles that settle on the wet finish.

Then I buffed using the orange pad and 3M Imperial Compound. This easily took an waviness out and the sanding scratches, but left it dull.

Next, I buffed using the light green pad with 3M Finesse-it. Much nicer, but still not back to the original shine of the straight varnish.

The varnish dried for 48 hours and I'm sure it should have dried for longer before buffing. However, I'm also wondering if I have the right products to really get this to mirror smooth. I didn't spend all winter on this for just okay.

I'm thinking of also getting 3M Perfect-It and an even lighter pad.

Any thoughts?
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Last edited by Minnewaska; 03-17-2013 at 11:08 AM.
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Old 03-17-2013
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Re: Bright work buffer

I've got to admit that I've never thought of polishing my brightwork, but I'm absolutely fascinated by the idea, especially of someone else doing it.
Pic's, before and after - I mean really, is it worth it for varnish that will be exposed to weather?
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