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02-23-2014, 09:07 PM | #1 |
Status: Junior Member
Join Date: Nov 2013
Posts: 4
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Heavy Oxidation Removal
We purchased a 1999 Carver 356 Aft Cabin that has heavy oxidation on one side. The boat sat in an end covered slip.
Unfortunately, being on the end one side of the boat saw a lot of sun and elements over the years and the previous owners didn't do a lot of upkeep. I have tried the Lake Country Yellow CCS Pad on my Porter Cable DA with the Marine 31 Heavy-Cut Oxidation Cleaner but it just won't cut the oxidation, it still has dull/hazy spots. Here is my new plan: Use a rotary buffer with a wool pad and the Marine 31 Heavy-Cut Oxidation Cleaner. Follow that with Marine 31 Gel Coat Gloss & Color Restorer with a LC Orange CCS pad on my DA. Then use a LC White CCS Pad and Marine 31 Gel Coat Final Step Polish with my DA and then use the Marine 31 wax. Here's my questions: Will the Lake Country 1" Foamed Wool Pad cut as well as the regular wool pads? My other question is do you still need to use the spur while using the foamed wool pad? |
02-24-2014, 10:09 AM | #2 | ||||
Status: Director of Training
Join Date: Apr 2013
Posts: 675
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Re: Heavy Oxidation Removal
Hi Dave,
Welcome to Marine31Online.com Quote:
Your boat looks like this, right? Quote:
After you cut the oxidation off using a wool cutting pad with the heavy cut oxidation remover, if it were me I'd probably try to go to the Marine 31 Final Step Polish with a wool finishing or wool polishing pad on the rotary. Gel-coats like fiber pads for heavy correction work more than they like foam. I know on paper, or on cyber paper, (this forum), switching to foam always seems like the next best step in the process but while foam pads will clean up the heavy swirls left by a wool cutting pad and an aggressive compound, it tends to also leave the gel-coat dull while a wool pad using the same product with the same tool will leave a high shine, high gloss finish. This is a simple enough test to do yourself. After the compounding step the gel-coat should look very shiny with excellent gloss. You might also see hashing or hash marks, that is areas where you can visibly see swirls in the gel-coat finish from the heavy cutting step. This is normal but the gloss and shine will still be there and that was the goal, remove the dull chalky, textured surface and replace it with a smooth, clear, glossy high shine surface. The next step is to refined the first step and while foam can and will remove the swirls or cuts in the finish by the wool cutting pads and the aggressive compound, (that's a good thing), it can and will tend to leave the gel-coat surface dull, not clear and shiny. This is just a characteristic of gel-coats. So I would suggest, Step 1: Compound with wool pad on rotary buffer. Step 2: Polish with wool polishing or finishing pad or Purple Foamed Wool pad on rotary buffer. Step 3: Seal the gel-coat by machine waxing with the dual action polisher and a foam pad. Quote:
Blends are less aggressive, like a 50% wool, 50 acrylic pad. The the fibers of the Purple Foamed Wool pads are encapsulated with foam particles and this decreases the aggressiveness of the pad. They still cut better and faster than a foam pad due to offering individual fibers that will cut just like individual abrasive particles, but the are a lot less aggressive than a true wool cutting pad. Quote:
Yes. You can clean a PFW using a traditional steel wool pad cleaning spur. In order of most aggressive to least aggressive... 8.5" Wool Cutting Pad - Part Number LC-41-125 Here's a wool polishing pad, a lot less aggressive than a wool cutting pad. 8.5" Wool Polishing Pad - Part Number LC-41-725 And here's a 7.5" Purple Foamed Wool Pad 7.5 inch Foamed Wool Polishing Pad - Part Number LC-58-4275
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02-24-2014, 01:08 PM | #3 |
Status: Junior Member
Join Date: Nov 2013
Posts: 4
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Re: Heavy Oxidation Removal
That's exactly what my boat looks like. Thanks for the advice. i am going to use the heavy cut and polishing wool pads. New wool pads have been ordered.
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02-27-2014, 10:01 AM | #4 |
Status: Junior Member
Join Date: Nov 2013
Posts: 4
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Re: Heavy Oxidation Removal
One more question Mike. What RPMs do you recommend running the cutting and polishing wool pads at?
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02-27-2014, 09:53 PM | #5 |
Status: Member
Join Date: Jun 2013
Location: Cape Coral, Fl.
Posts: 37
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Re: Heavy Oxidation Removal
Low and slow
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02-28-2014, 09:00 AM | #6 |
Status: Junior Member
Join Date: Jan 2014
Posts: 13
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Re: Heavy Oxidation Removal
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02-28-2014, 12:02 PM | #7 |
Status: Junior Member
Join Date: Nov 2013
Posts: 4
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Re: Heavy Oxidation Removal
I just hope nothing starts smoking when I start running my orbital on the boat.
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03-03-2014, 10:19 AM | #8 | |
Status: Director of Training
Join Date: Apr 2013
Posts: 675
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Re: Heavy Oxidation Removal
Quote:
A normal range for compounding oxidized gel-coat is 1000 RPM to 1500 RPM. Sometimes when using the Flex PE14 or the DeWALT 849X I'll even buff at 600 RPM, that's low and slow.
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