Gel coat buffing questions.

badkins50

Senior Chief Petty Officer
Joined
Sep 20, 2009
Messages
676
Our boat needs a little extra polishing. I used a buffing pad on a orbit style with 3m rubbing compound and it did make the boat shine better but I know its not at its full potential yet. I went to dads and got his grinder style polisher/buffer but now I need the right pads and compound. What do you guys recommend for pads and compound to bring back that well close to anyway, show room shine that will last for a while? Thanks.

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StevenT

Petty Officer 1st Class
Joined
Mar 9, 2009
Messages
230
Re: Gel coat buffing questions.

I had real good results using Makita wool pads. I have used them several times, I just put them in the washer to get the old color out. I've used the same set for 3 years and 2 boats now. Also I was satisfied with Meguiar's Fiberglass Oxidation Remover.
 

benjh1028

Petty Officer 2nd Class
Joined
Aug 17, 2009
Messages
107
Re: Gel coat buffing questions.

Before compounding, I highly recommend wet sanding with multiple grit sandpapers. Start with 600, then 1000, then 1500-grit. Use lots of water. Follow this up with a good wool pad and rubbing compound as StevenT recommends. Final coat should be a good, non-carnuba wax applied with your orbital polisher. Lots of work, but trust me, the gelcoat will look showroom new.

Ben
 

mpdive

Chief Petty Officer
Joined
Apr 23, 2011
Messages
567
Re: Gel coat buffing questions.

Before compounding, I highly recommend wet sanding with multiple grit sandpapers. Start with 600, then 1000, then 1500-grit. Use lots of water. Follow this up with a good wool pad and rubbing compound as StevenT recommends. Final coat should be a good, non-carnuba wax applied with your orbital polisher. Lots of work, but trust me, the gelcoat will look showroom new.

Ben

X2 The best way to bring back a showroom finish
 

badkins50

Senior Chief Petty Officer
Joined
Sep 20, 2009
Messages
676
Thanks fellow iboaters. Now I have a good starting point, ill take pics and keep you updated. If the weather man is wrong, and I hope he is because as of right now it is suppose to be a crappy and rainy weekend, I'd like to get started tomorrow.

There are just so many options out there now, its nice to be able to chat with people that have the experience. Thanks for the replies.
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mpdive

Chief Petty Officer
Joined
Apr 23, 2011
Messages
567
Re: Gel coat buffing questions.

Thanks fellow iboaters. Now I have a good starting point, ill take pics and keep you updated. If the weather man is wrong, and I hope he is because as of right now it is suppose to be a crappy and rainy weekend, I'd like to get started tomorrow.

There are just so many options out there now, its nice to be able to chat with people that have the experience. Thanks for the replies.
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Good time to wetsand!:)
 

chriscraft254

Commander
Joined
Jun 4, 2011
Messages
2,445
Re: Gel coat buffing questions.

Wet sanding should only be done if it is heavily oxidized and compound won't do the job. Yes, I have wet sanded mine, but it isn't something you want to do every time. Wet sanding is exactly that, you are removing a layer of gelcoat. If you are going to wetsand, you can try just using 1200 grit wet paper instead of starting with a more aggressive like 600. The more levels of sanding you do, the more gel coat you are removing. . No matter what grit you use keep it wet while using the paper, if you feel it start to stick to the surface wet it again. Make sure you are buying sand paper that is intended for use with water. You can get it at Lowes.If you are compounding, the compound should also be put on while damp. I apply it by hand only for best results. I also remove it by hand so I can feel how smooth the areas are as I go.

I believe in using the same product line, whatever you choose is your choice. This year it was Woody's compound and then triple XXX Woody wax. Last year it all Starbright products, the year before that, it was all 3m products. Some say collinite is the best. I like starbright and woody's products, but thats just me. Here is a couple picks of mine after just compound and wax. 21 year old hull. :) When your done with yours, you can come do mine if you haven't had enough! ;)
127.jpg

Newboatpics888.jpg
 

mpdive

Chief Petty Officer
Joined
Apr 23, 2011
Messages
567
Re: Gel coat buffing questions.

Wet sanding should only be done if it is heavily oxidized and compound won't do the job. Yes, I have wet sanded mine, but it isn't something you want to do every time. Wet sanding is exactly that, you are removing a layer of gelcoat. If you are going to wetsand, you can try just using 1200 grit wet paper instead of starting with a more aggressive like 600. The more levels of sanding you do, the more gel coat you are removing. . No matter what grit you use keep it wet while using the paper, if you feel it start to stick to the surface wet it again. Make sure you are buying sand paper that is intended for use with water. You can get it at Lowes.If you are compounding, the compound should also be put on while damp. I apply it by hand only for best results. I also remove it by hand so I can feel how smooth the areas are as I go.

I believe in using the same product line, whatever you choose is your choice. This year it was Woody's compound and then triple XXX Woody wax. Last year it all Starbright products, the year before that, it was all 3m products. Some say collinite is the best. I like starbright and woody's products, but thats just me. Here is a couple picks of mine after just compound and wax. 21 year old hull. :) When your done with yours, you can come do mine if you haven't had enough! ;)
127.jpg

Newboatpics888.jpg

Nice job. I agree with the going through the grit's comment. I only wetsanded mostly with 1000 grit just to cut the oxidation. Nice shine on yours.
 

badkins50

Senior Chief Petty Officer
Joined
Sep 20, 2009
Messages
676
Nice shine there cc254. I think I'm going to try the polisher with wool pad first because the gel coat is not that badly oxide and I think it will bring a lot back with a good compound and pad then ill give it a good polishing wax. Of coarse ill use marine grade stuff this time. There is a red stripe and as you can see, its not turning white yet from the chalk. And the hand feel is not ruff at all but it will leave a small trace of chalk on your hand. I just didn't know where to start and with what. Thanks.

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mpdive

Chief Petty Officer
Joined
Apr 23, 2011
Messages
567
Re: Gel coat buffing questions.

Nice shine there cc254. I think I'm going to try the polisher with wool pad first because the gel coat is not that badly oxide and I think it will bring a lot back with a good compound and pad then ill give it a good polishing wax. Of coarse ill use marine grade stuff this time. There is a red stripe and as you can see, its not turning white yet from the chalk. And the hand feel is not ruff at all but it will leave a small trace of chalk on your hand. I just didn't know where to start and with what. Thanks.

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http://www.youtube.com/watch?v=t0whDXwxYqk
Check out this link. This si the stuff I used. Both a cutting compound and polish. Love the stuff!
 

badkins50

Senior Chief Petty Officer
Joined
Sep 20, 2009
Messages
676
Thanks mpdive, that stuff really did a number on that boat. Mine, well from the looks, does not look as bad as that one before but then again mine is white. I'll look into it for sure

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zopperman

Lieutenant Commander
Joined
Jun 22, 2011
Messages
1,551
Re: Gel coat buffing questions.

That looks great. I have 30 years of oxidation to remove next season :eek:
 

mpdive

Chief Petty Officer
Joined
Apr 23, 2011
Messages
567
Re: Gel coat buffing questions.

The stuff is well worth the money.
 
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