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lukedeuce
01-07-2014, 10:27 PM
I've been searching TT and I am not sure if I have overlooked it, or just can't find it, but I have a few questions on Gelcoat hopefully you guys can answer relatively quickly.

I have an 83 s&s white hull w/ blue flake that I have decided to started refurbishing the gel coat. All old vinyls have been taken off and I have started wet sanding. I am sure I will have some questions on buffing/polishing later on, but I am more concerned with gel coat repair at this point. If I am doing this much work, may as well get it showroom condition.

I have a couple spots in the white Gelcoat I need to repair, but not finding any information on what people have used, color matching, etc....only a few small spots I need to clean up and a half dollar spot the PO managed to do at the waterline.

Sorry for creating a new thread, just can't seem to find the info I am looking for

And progress pictures since threads are pointless without them!

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Just a couple minutes of work and i got these results. Pretty stoked and motivated me to do the entire boat.

Sent from Deuce's iPad

mikeg205
01-07-2014, 10:39 PM
gel coat can be matched before adding catalyst...

good video if you have the time... https://www.youtube.com/watch?v=VZxyrxIC2Ts

mikeg205
01-07-2014, 10:40 PM
gel coat can be matched before adding catalyst...

good video if you have the time... https://www.youtube.com/watch?v=VZxyrxIC2Ts

Peter B. has some good tips too.

scott023
01-07-2014, 10:43 PM
Peter B. has some good tips too.

His boat still looks like it did the day it rolled out of the factory.

lukedeuce
01-07-2014, 11:13 PM
Mike - I just realized I owe you some measurements. I'll get those over to you soon

mikeg205
01-08-2014, 07:40 AM
Mike - I just realized I owe you some measurements. I'll get those over to you soon

No problem - I am not going anywhere and boats aren't going into the water anytime soon either.. ;)

BrianM
01-08-2014, 07:58 AM
Be VERY careful wet sanding on that flake.

CC2MC
01-08-2014, 08:13 AM
Most people use spectrum as a color match, but due to the age, you will probably be better color matching yourself. Remember to sand the area around the patch first to get a better match.

Brian is correct about being careful on sanding the flake. Just don't get too aggressive with the sandpaper selection. Try a test area first and start at about 1500 grit. If that does not easily remove the oxidation, take it down to 1000 grit. There is a clear gelcoat on top of the flake and the important thing is that you don't sand through it into the flake. Can't wait to see the final results after it is all cleaned up bc that will be a nice looking boat.

Cloaked
01-08-2014, 06:25 PM
Before you resort to sanding (too late) I'd give the 3M rubbing compound a try with a wool pad and a circular buffer. You may not need to sand anything.

BrianM has a writeup on his proven methodology of compound treatment.

http://www.mastercraft.com/teamtalk/showpost.php?p=784874&postcount=19
and
http://www.mastercraft.com/teamtalk/showthread.php?t=46985

Color: http://www.spectrumcolor.com/Index.aspx

Sanding will reach the flake quickly.

$0.02

.

lukedeuce
01-08-2014, 07:08 PM
Thanks cloaked. I only did two spots with wet sanding so still not too late

Edit: we did try wool pad with a 3m compound, but I am going to double check which one

lukedeuce
01-08-2014, 08:13 PM
Turns out it was a lighter duty compound that probably isn't as good as the heavy duty compound. Will give it a shot.

Anyone used chemical guys pads? On a budget and can't get too crazy with pads from 3m

http://www.chemicalguys.com/category_s/314.htm?searching=Y&sort=13&cat=314&show=100&page=1

03geetee
01-09-2014, 04:35 PM
Definitely need the heavy duty compound and please take this tip to heart.....

CLEAN THE PAD OFTEN WITH A TOOL OR IF YOU DONT HAVE ONE A SIMPLE METAL FORK FROM THE KITCHEN WILL DO

(Take the buffer at a slow to medium speed and hold the tines of the fork into the spinning pad to loosen and remove the built up compound/oxidation dust.)

This will help more than you know, most love the results after trying wool for the first time with the right compound....then results go down. First thing they do is think adding more compound must be the answer, this (no pun intended) compounds the problem. Keep that sucker clean and make sure it is a new pad. Follow up the buffing with a nice polishing or scratch reducing polish like Finesse 2 and then work your way up until you need to just seal it up with a heavy carnuba wax and apply 3-4 times a season to let it soak in.

JTR

lukedeuce
01-09-2014, 07:26 PM
thanks 03gt. I have the tool and a few wool pads to get this going. just waiting for amazon to deliver the products.

what did you use after the finesse it II?

jgraham37128
01-09-2014, 08:03 PM
Luke, head to autogeek forum before you get too deep into. There are great articles there about buffing boats. Boats are easy to do with all the flat services. I just did mine this last year. I didn't think it really needed it till I did one little area then realized how much better it looked after I got done.

I would also recommend not wet sanding unless you have to. I'm not sure of your skill level or not so, I'm going to give you some advice. Compound is just like sandpaper it's removing the top layer, which in your case is dull. The less you have to do to get it back shiny the better. I'll give you the steps from hardest starting with one to the final step. You don't have to start with one you may start with 3 based on the condition. I just did my 2012 Audi and started with 4. The further down the chart you start the easier it is because you can't skip polish and top coat (Sealer) With the pictures you downloaded you are for sure going to compound but it may not be necessary to wet sand. By the way I use Lake Country Pads Tangerine, White, Black, Red and Gold is what I use the most.

1. Dry Sand 1000/1500/3000 Grit
2. Wet Sand 1000/1500/3000 Grit
3. Heavy Duty Compound ( I prefer 3M) Tangerine Pad
3A. Medium Cut Compound (I prefer Menzerma) Tangerine Pad
4. Polish (This is actually a lighter compound) It will not have dust most will look like oil when you are buffing (I only use 3M Swirl Eliminator) White or Black Pad
5. Final Coat (This is a sealer of any kind) I prefer Blackfire I place it on by hand and polish it off with the Red or Gold pad

I hope this helps you. Read alot on the autogeek forum it will save you some time. I've done many details and just to give you an idea on how much time I think it will take you should spend about 20+ hours doing it, so don't think this will be a day project. If you do the job in a day it will show take a week to do it and you'll be glad you did. Don't rush and take everything off you can.

jgraham37128
01-09-2014, 08:12 PM
Here are some pics of me doing mine this last fall.

mikeg205
01-09-2014, 09:11 PM
What the... points taken off for goo ;) :D - looks awesome... tough crowd.. ;)

lukedeuce
01-09-2014, 09:18 PM
yikes...mike has a good eye!

+1 on the shine though, looks good.

Waiting for everything to show up in the mail now so I can get after it...when does amazon deploy their shipping drones?

mikeg205
01-09-2014, 09:21 PM
yikes...mike has a good eye!

+1 on the shine though, looks good.

Waiting for everything to show up in the mail now so I can get after it...when does amazon deploy their shipping drones?

envy is an ugly thing... :) ;) :D

03geetee
01-10-2014, 05:48 PM
Dont stop til you get it get it!!!!!!

http://i13.photobucket.com/albums/a300/o3geetee/Summer2011065.jpg
http://i13.photobucket.com/albums/a300/o3geetee/Interiornewpics010.jpg

JTR

mikeg205
01-10-2014, 06:04 PM
Dont stop til you get it get it!!!!!!

http://i13.photobucket.com/albums/a300/o3geetee/Summer2011065.jpg
http://i13.photobucket.com/albums/a300/o3geetee/Interiornewpics010.jpg

JTR

dang - thought I found a flaw - but it was crud on my monitor.. :) :D

lukedeuce
03-18-2014, 12:14 PM
I have been posting in the Facebook MC page, but thought I would get some updates to guys that aren't on Facebook.

I scrapped the wet sanding and went to 3m super duty rubbing compound on a wool pad and all the shine and flake came to life again. Moved to 3m finesse it 2 on an orange pad and working in a small spot, the results were horrid. It left a white haze and dulled the surface pretty bad, a huge let down after all the work done. Switched back to the wool pad and finesse or the same spot and immediately the shine was back. Thank god.

Have a couple more spots to hit again with rubbing compound and finesse again, but I am overall satisfied with the results. Vinyls will get put on this weekend then on to polish and wax. May have to cut out early Friday as temps are to be almost 60 degrees here in Iowa. Then back down to the 30s.

Teak was also worked on over the weekend. I originally thought I may have to scrap the platform as the previous owner did not take care of it one bit. It was weak and in rough shape. A few hours of sanding, new hardware and three coats of golden teak oil brought it back to life. It's a little darker than I wanted, but a huge improvement from what it once was

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lukedeuce
03-18-2014, 12:17 PM
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lukedeuce
03-18-2014, 12:20 PM
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mikeg205
03-18-2014, 12:21 PM
looks awesome... :)

lukedeuce
03-18-2014, 12:24 PM
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