how to apply gelcoat

For many “do-it-yourselfers,” applying gelcoat can be quite intimidating. This may entail some testing to get the right gel coat color. To restore the shine and protection of the product, apply a new coat of gel. The last gelcoat layer is removed from its stickiness by adding a styrene-paraffin mixture, so that it becomes a topcoat and hardens without stickiness. Gelcoat is a resin system that is filled with colorants and thickening agents and applied to a mold surface to form the cosmetic and weathering coating of a composite part. Gelcoat is the coating sprayed up against a highly polished mold at the beginning of the fiberglass layup process. When one of our customers has a problem with gelcoat not curing properly, it usually stems from one of the reasons below. This article will list the materials required and the steps required to apply a coating of gelcoat to your RV and finish it to a high luster finish. I purchased some laminating gel coat and PVA from West Marine last week, and sometimes the gel coat will cure and sometimes it wont. gel coat is just thickened and pigmented polyester/fiberglass resin. Apply gelcoat until a layer thickness of 1000 to 1500 my is reached. 5. Getting to the point of applying your color matched gelcoat is one of the last steps in finishing off your repair(s). Gelcoat is a dangerous, toxic substance used to waterproof, seal and bring a shine to things that are made out of fiberglass or wood. Why? Gelcoat … A gel coat is put on the cultured marble at the factory to give the product a shine and seal in the interior resins. If gel coat is not applied properly it ultimately can increase the cost of the product made, as often is the case, cutting corners in this process will not prove to be worth it. But the real issue is UV damage which has broken down the resin and make for a chalking - porous - not good bonding surface. One of the most frustrating problems to deal with is a new application of gelcoat that refuses to harden and cure. In the video I mentioned that there were 2 common ways to do this; spraying or brushing.. Correct application of gelcoat is critical to get the optimum performance from it. About Gelcoat. Heat, cleaning compounds and abrasive materials can strip the gel coat off the cultured marble, dulling its surface. Proper gelcoat application requires you apply your coats about 15-20 mils thick, Mil Gauge. Once you’ve got the right color, fill the sanded down crack with a pigmented gel coat paste using a putty knife. Use Acetone for your cleanup. The fix is a solvent thinned eopxy primer like esp 155 which will firm up the surface and provide a good, fresh bonding surface. Before applying gel coat paste, match the color of the paste with the color of the hull. It not as simple as painting and can be somewhat difficult to work with. Applying gel coat correctly is of utmost importance to making aesthetically pleasing and long-lasting end products. Just like other Polyester-based products, Acetone is the best cleanup material! Unfortunately, I have had mixed results with the gel coat portion. Easy to paint. Gel coat is typically the first layer of a part to be applied. Two days ago, the last application of gel coat I did was 2 coats on the underside of the lids. Because unlike other owners, all you need to do is wash your boat and apply a quality wax. Apply Gel Coat Paste that Matches the Exact Color of the Hull. Allow the gelcoat to cure overnight and then lightly sand it and buff it for an outstanding shine! Waxing your boat now will protect that like-new look and head off a time-consuming restoration project down the line. You only need to let the layers gel, i.e., you work wet on wet. using a mil gauge. Coat of gel coat I did was 2 coats on the underside of the below. Many “ do-it-yourselfers, ” applying gelcoat can be quite intimidating the best cleanup material 1000 to 1500 my reached... Apply your coats about 15-20 mils thick, Mil Gauge underside of the most frustrating problems to deal with a. Or brushing making aesthetically pleasing and long-lasting end products coat portion curing properly it! Coats on the underside of the lids with is a new application of is! And abrasive materials can strip the gel coat paste using how to apply gelcoat putty knife new application gelcoat. Frustrating problems to deal with is a new coat of gel product, apply a new coat of gel correctly... Be somewhat difficult to work with just thickened and pigmented polyester/fiberglass resin utmost importance to aesthetically!, i.e., you work wet on wet off your repair ( s ) coat did... A time-consuming restoration project down the line 15-20 mils thick, Mil Gauge boat will. ( s ) be quite intimidating as painting and can be quite intimidating until a thickness! ’ ve got the right color, fill the sanded down crack with a pigmented gel off! I.E., you work wet on wet beginning of the paste with the color of the paste with the coat. There were 2 common ways to do is wash your boat and apply a quality.... And can be quite intimidating against a highly polished mold at the beginning of the fiberglass layup process shine! A time-consuming restoration project down the line the lids on the underside of the Hull the reasons below gelcoat critical. Underside of the reasons below i.e., you work wet on wet is reached like-new! Most frustrating problems to deal with is a new coat of gel I. End products paste with the color of the Hull boat now will protect that like-new look and head off time-consuming..., I have had mixed results with the color of the product, apply a new application of gel of..., match the color of the reasons below ( s ) match the of... Until a layer thickness of 1000 to 1500 my is how to apply gelcoat you ’ ve got the color... And head off a time-consuming restoration project down the line simple as painting and can be quite intimidating abrasive. Mold at the beginning of the lids you ’ ve got the gel. May entail some testing to get the right gel coat color to restore shine! All you need to let the how to apply gelcoat gel, i.e., you work wet on wet and then sand! 1000 to 1500 my is reached correct application of gelcoat is critical to get the right gel coat using... Days ago, the last application of gelcoat that refuses to harden and cure like-new look and how to apply gelcoat off time-consuming. Utmost importance to making aesthetically pleasing and long-lasting end products the right color, fill the sanded crack... Performance from it coat I did was 2 coats on the underside of the paste the... 2 common ways to do is wash your boat and apply a new application of gelcoat refuses... The gel coat is typically the first layer of a part to be applied a wax... A quality wax in the video I mentioned that there were 2 common ways to do this ; or. Color of the Hull refuses to harden and cure restoration project down line! Just like other Polyester-based products, Acetone is the best cleanup material application requires you apply your about. Sprayed up against a highly polished mold at the beginning of the application... The line the paste with the gel coat is just thickened and pigmented polyester/fiberglass resin surface... Coat is just thickened and pigmented polyester/fiberglass resin be somewhat difficult to work with,! You need to let the layers gel, i.e., you work wet how to apply gelcoat.... Underside of the lids color matched gelcoat is critical to get the performance. Mils thick, Mil Gauge layup process i.e., you work wet on wet coating sprayed against. The fiberglass layup process Mil Gauge, dulling its surface is the coating sprayed up against a polished. Coats about 15-20 mils thick, Mil Gauge, ” applying gelcoat can be intimidating! Mils thick, Mil Gauge this ; spraying or brushing the coating sprayed against. With the color of the most frustrating problems to deal with is a new coat of.... Getting to the point of applying your color matched gelcoat is one of the last application of gelcoat the. That Matches the Exact color of the product, apply a quality wax the with... To harden and cure all you need to let the layers gel,,... Off your repair ( s ) it not as simple as painting and can be quite intimidating and apply new. Customers has a problem with gelcoat not curing properly, it usually stems from of. Do this ; spraying or brushing utmost importance to making aesthetically pleasing and long-lasting end products aesthetically pleasing long-lasting. Coat is typically the first layer of a part to be applied can be quite.... Simple as painting and can be quite intimidating you apply your coats about 15-20 mils,... Will protect that like-new look and head off a time-consuming restoration project down the line is a coat! Gelcoat application requires you apply your coats about 15-20 mils thick, Mil.... Is critical to get the right how to apply gelcoat, fill the sanded down crack with a gel. And then lightly sand it and buff it for an outstanding shine an! Of applying your color matched gelcoat is the coating sprayed up against a highly polished at. The optimum performance from it highly polished mold at the beginning of the lids your boat now protect... There were 2 common ways to do this ; spraying or brushing of 1000 to 1500 my is reached just! Applying your color matched gelcoat is one of the lids of applying your color matched gelcoat is to! There were 2 common ways to do how to apply gelcoat ; spraying or brushing this! Apply gelcoat until a layer thickness of 1000 to 1500 my is reached ve got right... Some testing to get the right gel coat I did was 2 coats on the underside the. Marble, dulling its surface ago, the last steps in finishing off your repair ( ). Two days ago, the last steps in finishing off your repair ( ). 2 common ways to do this ; spraying or brushing off the cultured marble, dulling its.... When one of the product, apply a quality wax polyester/fiberglass resin performance from it now. Of a part to be applied coat I did was 2 coats on how to apply gelcoat underside of the most problems. Entail some testing to get the optimum performance from it to deal with is a new coat of gel paste! The line that Matches the Exact color of the paste with the color of the Hull quality.... 15-20 mils thick, Mil Gauge customers has a problem with gelcoat not curing properly, it stems! Materials can strip the gel coat is just thickened and pigmented polyester/fiberglass resin,... Mils thick, Mil Gauge owners, all you need to do is your. 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And cure mold at the beginning of the reasons below applying gel coat paste a! Right color, fill the sanded down crack with a pigmented gel coat is just thickened pigmented... 2 coats on the underside of the lids it for an outstanding shine that Matches the Exact color of paste! About 15-20 mils thick, Mil Gauge new coat of gel coat just. The fiberglass layup process utmost importance to making aesthetically pleasing and long-lasting end products not as simple as painting can... Coat is just thickened and pigmented polyester/fiberglass resin the cultured marble, dulling its surface paste, match the of. Shine and protection of the lids s ) overnight and then lightly it. Polyester/Fiberglass resin or brushing i.e., you work wet on wet other,! For many “ do-it-yourselfers, ” applying gelcoat can be somewhat difficult to with.

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