wet sanding and buffing?????
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Boat Maintenance
Forum Discription: Discuss maintenance of your Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=13594
Printed Date: November-17-2024 at 3:28pm
Topic: wet sanding and buffing?????
Posted By: newoldboat
Subject: wet sanding and buffing?????
Date Posted: May-06-2009 at 11:15pm
| my SN had a large scratch on the side where the PO apparently let it rest on a dock and get scratched as waves came by. I wet sanded the scratch with 320, 600, and 1000 and then buffed it. I also did the same on the top of the bow where it was scratched from using the trailer with no wood on the bow stop. I have buffed the rest of the boat but none of it looks as good as the spots I wet sanded. The sanded spots look brand new. My question is can I buff the rest of the boat with a more aggresive compound to attain this quality of finish or will I have to wet sand the rest of the boat with 1000 or 1200? This boat is 19 years old so I don't want to remove very much gelcoat because who knows how thin it could already be. Any advice? |
Replies:
Posted By: 8122pbrainard
Date Posted: May-07-2009 at 10:16am
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Joe,
Buff first and see what happens. You can always go back and wet sand if it doesn't remove the oxidation. ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: eric lavine
Date Posted: May-07-2009 at 10:29am
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320 is pretty agressive, wet sand the rest with 1000 and i dont think you'll bust through. do what pete said, the 1000 grit will speed it along
------------- "the things you own will start to own you" |
Posted By: GottaSki
Date Posted: May-07-2009 at 12:00pm
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Ditto, do not start with 320 - too agressive. Not sure what compound you used but consider using 3m Super-duty compound and see how that works on an area before comitting to wetsanding. ------------- "There is nothing, absolutely nothing, half so much worthwhile as messing around with boats...simply messing." River Rat to Mole |
Posted By: mndanielsncsu
Date Posted: May-07-2009 at 1:59pm
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You can use the 3M Super Duty Rubbing Compound and a variable speed polisher with a wool bonnet on it. It's supposed to be abrasive enough to remove swirls created by 1000 grit sandpaper. Just follow the directions on the bottle and set the polisher to the recommended speeds.
I just used it on my entire boat and was very happy with the results. Here's a link: http://www.discountmarinesupplies.com/Rubbing_Compounds-3M_SUPER_DUTY_RUBBING_COMPOUND.html - 3M Super Duty Rubbing Compound |
Posted By: Randy_in_Ohio
Date Posted: May-07-2009 at 2:53pm
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The 3M super Duty is more aggressive than 1000 grit. It will remove swirls created by 600 grit, no problem.
I would start with the Super Duty on a heavy wool pad using a spur to keep the pad clean, then follow up with a less aggressive, heat activated compound on a medium foam pad (I used a product called Ultracut from PDP) then follow up with a finishing glaze (3M Finesse it II) and finish with Meguires Flagship Marine Wax (good stuff!). If the super duty doesn't get it then go to a wet sand maybe 600 grit. The gel on these boats is pretty thick. You would have to leave the buffer in one place with a heavy compound for a while before it would go all the way through. ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1602&yrstart=1991&yrend=1995" rel="nofollow - 1993 Sport Nautique |
Posted By: TRBenj
Date Posted: May-07-2009 at 3:04pm
|
Randy, Im sure it will remove 600 grit scratches... eventually! Really its best at removing 1000-1200 grit scratches- it says 1000 on the bottle.
FYI, I dont care what 3m labels it, Finesse-It II is a POLISH, not a glaze. My understanding is that a polish removes material to smooth the surface, while a glaze adds material for the same effect... Finesse-It II definitely does the former. I tried a true glaze once after polishing- what a waste of time! Ive gone down to 320 (actually, Ive gone down to 220 before) but I would strongly advise doing so unless its absolutely necessary! Go as minimally agressive as you can- try the SD compound on a test spot first. If you need more grit, try 1000. Work your way down until you start seeing results that you like- then bring it all the way back up. Sanding sucks, so the less you have to do, the better. Do be a little careful on corners and edges, but it is damn difficult to damage the gel on these boats. It is hard and thick! ------------- |
Posted By: eric lavine
Date Posted: May-07-2009 at 5:38pm
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It is hard and thick!
I will second that ------------- "the things you own will start to own you" |
Posted By: kapla
Date Posted: May-08-2009 at 3:50pm
It depends on the use...LOL also check if your shaft its straith... ------------- <a href="">1992 ski nautique |
eric lavine wrote: