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Author Topic:   Bumpy Gel Coat
jbuell posted 11-30-2001 09:37 AM ET (US)   Profile for jbuell   Send Email to jbuell  
The person who attempted the gel-coating on my 13' Whaler left it all bumpy then they painted over it. Looking to confirm my notion that I need to just sand the whole thing down and start over. Any tricks to keeping the Gel Coat smooth? I also noticed that some where talking about coloring the gel coat? This seems more attractive than painting? Any feedback would be really appreciated. thanks.
NEVER SCARED posted 11-30-2001 01:37 PM ET (US)     Profile for NEVER SCARED    

That gel coat isnt cheap! $17 for 2oz jars. Ive done a lot of work with it and heres a few tips:
1. keep repair as small as possible
2. surround the repair with masking tape, try to keep the tape one layer thick
3. apply gc with a flexible putty knife wide enough to cover repair with one swipe
4.try to get a decent new surface, but doesnt have to be super smooth - you'll only have about 1 min to work with it. Spectrum says 20 min, thats bs.
5. Peel off masking tape and let gc cure for about 3 min then cut a piece of wax paper to cover entire area
6. lay wp at one edge of repair then using your finger, run it across wp working out all the trapped air. this is very critical for a good surface. if you have trapped air, peel back wp far enough and continue working it out with finger. Do not apply too much pressure on wp.
7. once wp is applied and all air is "squezed" out, use a credit card to further flatten surface.

At 60 degrees room temp. the gel coat will be fully hard in about an hour. peel off wp and let it sit for 15 min before sanding smooth. Remember, air DOESNT cure gel coat!!!

kingfish posted 11-30-2001 02:36 PM ET (US)     Profile for kingfish  Send Email to kingfish     
Air DOES cure Spectrum 2 oz. gelcoat *paste*.

Air DOES NOT cure standard liquid gelcoat, unless a certain type of wax (as used in the paste) is mixed in.

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