Fiberglass fixes. What do you about the Gel coat?, Need to fix some cracks in my front valance |
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Fiberglass fixes. What do you about the Gel coat?, Need to fix some cracks in my front valance |
JRust |
Sep 13 2015, 08:39 PM
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#1
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914 Guru Group: Members Posts: 6,305 Joined: 10-January 03 From: Corvallis Oregon Member No.: 129 Region Association: Pacific Northwest |
How do you fix them? Can you give me a step by step? I've done a little fiberglass fix but it's been years. What about the gel coat. Does the resin setup enough that it can be sanded smooth? What do you do to get the gel coat looking good?
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iamchappy |
Sep 13 2015, 08:48 PM
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#2
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It all happens so fast! Group: Members Posts: 4,893 Joined: 5-November 03 From: minnetonka, mn Member No.: 1,315 Region Association: Upper MidWest |
"What do you do to get the gel coat looking good"
Resin will repair it but not the gelcoat finish. Paint it... |
PanelBilly |
Sep 13 2015, 09:03 PM
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#3
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914 Guru Group: Members Posts: 5,804 Joined: 23-July 06 From: Kent, Wa Member No.: 6,488 Region Association: Pacific Northwest |
How big are these cracks?
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JRust |
Sep 13 2015, 09:11 PM
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#4
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914 Guru Group: Members Posts: 6,305 Joined: 10-January 03 From: Corvallis Oregon Member No.: 129 Region Association: Pacific Northwest |
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stownsen914 |
Sep 13 2015, 09:17 PM
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#5
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Senior Member Group: Members Posts: 913 Joined: 3-October 06 From: Ossining, NY Member No.: 6,985 Region Association: None |
Resin doesn't tend to sand as easily as gelcoat in my experience. For the fg work I've done, I try to minimize the sanding of resin for this reason. When you do your repair, put some tape on the shiny/outside of your work to keep excess resin from leaky through and running all over the place - it will save you work later. You can also remove excess with acetone or similar before it sets completely. To fix the cracks and crevices on the shiny side of the fg, just use your favorite autobody filler. It will sand a lot easier than resin.
Actually, I just reread your post, and I'm not quite following what you want to fix. Can you share a pic of what you're trying to repair? Scott |
JRust |
Sep 13 2015, 09:19 PM
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#6
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914 Guru Group: Members Posts: 6,305 Joined: 10-January 03 From: Corvallis Oregon Member No.: 129 Region Association: Pacific Northwest |
Resin doesn't tend to sand as easily as gelcoat in my experience. For the fg work I've done, I try to minimize the sanding of resin for this reason. When you do your repair, put some tape on the shiny/outside of your work to keep excess resin from leaky through and running all over the place - it will save you work later. You can also remove excess with acetone or similar before it sets completely. To fix the cracks and crevices on the shiny side of the fg, just use your favorite autobody filler. It will sand a lot easier than resin. Scott Ah so a little bondo on the front side. Fiberglass/resin on the back then? |
Andyrew |
Sep 13 2015, 10:44 PM
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#7
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Spooling.... Please wait Group: Members Posts: 13,376 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California |
You could use kitty hair. Basically fiberglass and bondo. I have done this and added fiberglass strands to the mix to make a big glob of strong material.
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Andyrew |
Sep 13 2015, 10:45 PM
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#8
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Spooling.... Please wait Group: Members Posts: 13,376 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California |
http://www.evercoat.com/product-detail/base-part/100868/us/
This is what I used on my fenders to metal, I had about a 2"x3"x1/4" section that was very weak with the original fender underneath, I cut it down to metal and used this instead. |
somd914 |
Sep 14 2015, 03:53 AM
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#9
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Member Group: Members Posts: 1,171 Joined: 21-February 11 From: Southern Maryland Member No.: 12,741 Region Association: MidAtlantic Region |
I just repaired a lip that had a chip and crack in it due to a curb hit. Used resin and glass on the back side to reinforce it. On the front I used resin and West Systems 407 fairing filler mixed with resin to make the resin sandable.
I've done numerous fiberglass repairs on our boat over the years, try looking at these for ideas: http://www.westsystem.com/ss/how-to-use-demos/ http://www.westsystem.com/ss/use-guides/ Agree with repainting after repair. Gelcoat can be repaired, but it's not worth the hassles and likely won't match. |
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