chalky finish how to get the gloss back on gel coat

llerrad

Petty Officer 2nd Class
Joined
Jan 21, 2003
Messages
172
Would like best solution to get the wet look or the high gloss back on older boat with calcium chalk on finish. Have tried finishing compounds but cannot get that wet look. Older boat has good gel coat base so need tips on wet sanding, need to know how, by hand? or can one use sander? what type of sanding material and what stages to follow.
 

JasonJ

Rear Admiral
Joined
Aug 20, 2001
Messages
4,163
Re: chalky finish how to get the gloss back on gel coat

I do it the old school way, largely because I have never gotten around to getting a 7" grinder/polisher. I wet sand, starting with 600, and go through the next available grits to 1200, always keeping the paper clean. Then I wax and I am done. One of these years I need to get a 7"-er, and then I can do it like Mark...
 

Nova II 260

Senior Chief Petty Officer
Joined
Jul 27, 2006
Messages
681
Re: chalky finish how to get the gloss back on gel coat

Here's what I did:
1. Wipe with lacquer thinner to get the old wax, etc off follow with wet wipe with water. I use a spray bottle with water to wash and wet down the surface.
2. Get a bucket with clean water.
3. Sand with 1600 or 2000 grit wet/dry grit by hand with pad or block.
4. Keep your paper clean by dipping in the bucket often.
5. Follow with 3m Polish (power polisher)
6. follow with you favorite wax/sealer.
Before:
oxidation%201.jpg


After:
oxidation%202.jpg

Notice the reflection of the 3M bottle sitting on the outdrive.
 

Mark42

Fleet Admiral
Joined
Oct 8, 2003
Messages
9,334
Re: chalky finish how to get the gloss back on gel coat

Nova, that came out real nice.
 

Nova II 260

Senior Chief Petty Officer
Joined
Jul 27, 2006
Messages
681
Re: chalky finish how to get the gloss back on gel coat

Thanks Mark, I'm 60 and not in the best of health. Trust me I did not feel like labouring my butt off on shine'n her up. I took my time, it went quick, and it came out well. I did had to do the transom to put the new name decal on. I have a little more faded black on the side gunnels that are going to be done this week.
 

fishdog4449

Chief Petty Officer
Joined
Jul 16, 2007
Messages
462
Re: chalky finish how to get the gloss back on gel coat

In your thumbnail there, the white hull color looks great!
Did you paint that, or use the shine method there too?
 
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