Video answer: Marine tex fiberglass repair
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The reason is that gelcoat is polyester and marine tex is epoxy. Epoxy will stick to gelcoat, but gelcoat will not stick to epoxy. Go with gelcoat as long as the gouges are no deeper than the cloth or matt. If they are deeper than that, fill them with polyester putty first, let it cure, then add the gelcoat.
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Sundance Sundance 20 Weekender Ninette, Manitoba, Canada. Mar 31, 2007. #3. Doug is right about the no stick. The reason is that gelcoat is polyester and marine tex is epoxy. Epoxy will stick to gelcoat, but gelcoat will not stick to epoxy. Go with gelcoat as long as the gouges are no deeper than the cloth or matt.
(Marine-Tex does not require a coating for UV or waterproofing capabilities. Any coating would be for cosmetic reasons only.) Follow specific 'gelcoat' directions if applying a polyester gelcoat to the surface of Marine Tex.
I dunno about putting marine-tex as a replacement for gelcoat, I personally have used to to fill in rotted wood and seal a cracked block. The stuff works great and is sandable, but doesnt leave a great finished product as it hardens liek concrete.
I've plugged a few holes with Marine Tex and then covered with Gel Coat with out any problems. I clean the Marine tex with a q-tip soaked in soap and water which is the correct way to remove blush if any. Other helpful tips are to counter sink the hole and cover the gel coat with wax paper for a faster cure and to facilitate easier sanding. kingfish
Marine-Tex is an epoxy and is not guaranteed to adhere to the gel coat resin (according to the MT folks). Bottomline, you can probably do it, but just be aware of this. as long as you sand it to rough up the surface. the gelcoat will stick to it. 25 Related Question Answers Found
In the keel damage picture the whiter material (not greyish tan gelcoat or the black bottom paint) is marine-tex. Its pretty easy to apply marine-tex, just mix and apply with a putty knife. Smooth with a wet rag. And if you find it hard to read what's in the browser window, try View...
I purchased the boat with the scrape on the bottom. I fixed it using marine tex. This product is stronger than fiberglass. If you are just fixing gel coat, t...
About us. Marine Tex® epoxy systems repair, bond and fill fiberglass, aluminum, plastics such as PVC, ABS, polyethylene (Starboard® Marine Building Sheet), inflatables, glass, masonry, ceramics, wood, dissimilar materials and more! Dependable high-strength epoxy products, coupled with a knowledgeable technical staff provide the confidence to ...
I use Marine tex on almost all of my small gel coat repairs.It is tintable, make sure you tint before adding hardener as it,s work life is short.As with most epoxies it will take forever to harden below 60 degrees.Use a heat lamp or lightbulb near the repair area in colder weather.After fairing the repaired spot, top off with a coat of Krylon #1504 Ivory gloss for a near perfect repair.At least that is the color of my 1973 outrage.It is an epoxy so it does require a topcoat.Although I do ...
Gel coat. Gel coat is a resin that you can usually find on new boats. It is generally less expensive material-wise compared to marine paint and is formulated to be UV protective. Therefore, the owner might not use add-ons. Gel coat is more conducive to small repair areas compared to paint, but the area where gel coat really excels is in its longevity. With the proper care, gel