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What filler to use on screw holes and gel coat cracks
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| transport20se |
Posted on 01/05/09 - 6:52 PM
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Has anyone used this product to fill screw holes and gel coat cracks in their boat, Dyna-Glass No. 462 or Evercoat Fromula 27, wich one of these would be better to use as far as strength and ease of use?
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| ioptfm |
Posted on 01/06/09 - 7:02 PM
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Not familiar with either product, but you should be able to search this site using those keywords individually and probably find a Post or topic relating to them
Tom
1979 Sport 15' |
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| CES |
Posted on 01/06/09 - 7:11 PM
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I used West systems epoxy with cabisol added. Worked well for me.
Cliff
1966 13' Sport with a 1993 40hp Yamaha 2 Smoker |
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| charkbait |
Posted on 01/07/09 - 7:47 PM
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the 27 is nice, i like it. used 4 quarts now...
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| KeyRat |
Posted on 01/08/09 - 1:12 PM
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I was about to use thickened epoxy resin to fill some holes but I went with polyester resin as I was told that gelcoat (repair kit) won't stick to epoxy.
I haven't got to the gelcoat part but I'll let you know how it goes.
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| jquigley |
Posted on 01/08/09 - 2:38 PM
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Please do, I was going to use Marine Tex on mine, but Spectrum said the gelcoat would not cure well as the Marine Tex I had was Epoxy based. (term?)
--John
Edited by jquigley on 01/08/09 - 2:52 PM |
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| Royboy |
Posted on 01/08/09 - 5:17 PM
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Try these folks:
http://www.spectrumcolor.com/default.aspefault.asp
They sell gelcoat patch kits by model and year that are nearly perfect color matches. The kits are a bit pricey, but easy to use and yield excellent results. Follow instructions to the letter and you'll be very happy with the results.
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| Chris in MD |
Posted on 01/15/09 - 3:06 PM
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Two part epoxy of your choice (West, MAS, Silvertip,etc) thickened with Cabosil.
Mix the epoxy per directions and then add equal amount of cabosil.
Chris
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| Finnegan |
Posted on 01/15/09 - 4:21 PM
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With 4 Whalers, I have a lot of experience with this. My recommendations are:
1. for repairing stripped screw holes holding a fitting, where the fitting is to be re-installed. Here, the fitting covers the repair and no gelcoat covering is needed. Drill out hole twice the diameter of the screw diameter, going through the backing pad also, fill with Marine-Tex epoxy, sand and buff flush, re-drill and install fitting. Will hold for life, and be waterproof at the same time.
2. For filling old holes, to be finished with gelcoat: Slightly countersink the edge of the hole to create a rough bonding surface around it, fill with Evercoat #27 POLYESTER resin, sand flush, grind a hollow for the new gelcoat, fill, sand and buff. POLYESTER RESIN SHOULD BE USED WHEN GELCOAT IS BEING APPLIED, AS I HAVE FOUND GELCOAT DOES NOT HOLD IT'S BOND TO AN EPOXY LIKE MARINE TEX. Eventually it fails and chips off.
3. For general hull repairs, to be gelcoated, and filling large bolt holes, etc. Use the #27.
4. For spider cracks and real small holes, only gelcoat is needed.
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| Aloha Dick |
Posted on 01/21/09 - 5:12 PM
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Finnegan wrote:
With 4 Whalers, I have a lot of experience with this. My recommendations are:
1. for repairing stripped screw holes holding a fitting, where the fitting is to be re-installed. Here, the fitting covers the repair and no gelcoat covering is needed. Drill out hole twice the diameter of the screw diameter, going through the backing pad also, fill with Marine-Tex epoxy, sand and buff flush, re-drill and install fitting. Will hold for life, and be waterproof at the same time.
You can also spray the fastener (screw) with wd40 and sink into the marine tex before it hardens. When it cures you can twist the screw out. Just a trick...
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