The materials don't work well together, and trying to mix them like this is a recipe for disaster. Have the hull checked with a moisture meter to ensure that the fiberglass bellow the waterline is dry. How to apply gelcoat over epoxies (Marine Tex):-Applying polyester resin (like gelcoat) over epoxy is very tricky and must be done extremely carefully. For scratches, dings, and dents 1/16” deep or greater, use TotalFair epoxy fairing putty first, then sand smooth and overcoat. It can be used to resurface cracked and crazed gelcoat, and over clear epoxies to eliminate the effects of amine blush. Like any painting project, preparation is the key and, in this case you will be painting over the slick, shiny surface of gelcoat. Restoring your gelcoat can help restore the shine of your boat and protect its surface. Yes, you can apply gelcoat over a surface that's already covered with gelcoat. EcoPoxy GelCoat is an epoxy coating with superior chemical, abrasion, and thermal resistance. Only 9 left in stock - order soon. Primers are sold separately. a company called fiberglast sells the gelcoat and pva much cheaper than any marine supply. Du vil modtage information om produkter, tilbud og vores virksomhed. To apply an epoxy barrier coat over the gelcoat your boat NEEDS TO BE DRY! Although it appears that the metal flakes are mixed into the base coat, they are usually mixed into the clear gel coat. Re: GEL COAT over epoxy.. Luis, You can use polyester gelcoat (and resin) over epoxy, if you prepare the surface properly. Begin by making sure any surface dirt and stains are removed. If you haven’t seen this video series yet, it … It is easily applied with a brush, roller, or sprayed to provide a smooth, non-porous high gloss finish on many surface types such as … $14.99 $ 14. Epoxy Resin $ 16.25 – $ 365.60. Black Pigment for Epoxy Resin ... FREE Shipping. over epoxy. Industrial Epoxy Finishing Coating. I even left it overnight - still sticky in the morning. Posted on November 11, 2015 by Kristin. In spring 2017, BoatUS Magazine's contributing editor Lenny Rudow held a webinar on maintaining and polishing fiberglass gelcoat, and showed us how to keep our hulls in top condition. The smaller the repair, the easier it is to coat epoxy with gelcoat. So, we are here to provide a step-by-step guide on how to properly apply gelcoat. the 2 step finishes exactly like the original gelcoat where the 1 step balls up and gets gummy when sanded. If you do try and apply gelcoat over epoxy you might want to see what West Systems has to say about surface prep, etc. Over time and with use, the gelcoat on your boat can become dull, making your boat look old. Epoxy is … Latex goes over epoxy very well. And gelcoat over large areas is a TON of sanding 🙁 Not fun!! If it's a large surface such as a boat or a bathtub, use a gelcoat spray gun to apply a coat over the existing coat. Get it as soon as Wed, Dec 2. Yes. Browse our categories. One of my customers makes smaller racing sailboats and they make a special boat with kevlar and epoxy and over several years most if not all of the gelcoat delaminated from the epoxy/kevlar. The issue is the non-skid. The smaller the repair, the easier it is to coat epoxy with gelcoat. Good luck. The first coat or two of the latex will show lots of paint brush marks on the slick and smooth epoxy. Can you apply gelcoat over this primer? Primers are sold separately. Gelcoat should not be applied directly over TotalFair or the gelcoat will not cure properly. 99. They want to know if it is okay to go over it and what they have to do to properly prepare the surface. This means that the boat was out of the water for at least 30 days. To prepare the epoxy surface, you must sand it to remove the surface shine(and certain chemicals), and wipe it with acetone. Gelcoats are modified resins which are applied to moulds in the liquid state. The trouble is, where the gelcoat is over the epoxy, it just won't set. After years of boat ownership, and using every product under the sun, he also revealed his personal favorite waxes and polishes, and how best to apply them. Ja, tak til de bedste tilbud og nyheder Dine personlige data vil hjælpe os når vi skal sende dig vores nyhedsbrev. Instead, apply TotalBoat 2-Part Epoxy Primer or TotalBoat TotalProtect Epoxy Barrier Coat Primer over TotalFair, before applying Gelcoat. Gelcoat should not be applied over paint, wood, metal or concrete. Refer to our Fiberglass Boat Repair & Maintenance manual (pdf), published by Gougeon Brothers, for detailed information on patching gelcoat over an epoxy repair. Replies: 5 Views: 1,153. trip the light fandango Apr 11, 2019. Awlgrip is a polyurethane paint, not a gelcoat. Allow it to cure completely. Gel coat is a resin that is pigmented with color. Gelcoat should not be applied directly over TotalFair or the gelcoat will not cure properly. Gelcoats that are more heavily cracked or crazed will require additional preparation and labor. Som enhver anden overflade og finish vil gelcoat også få ridser og småskader og bør derfor løbende vedligeholdes. Cost can be the second consideration. SIM is correct polyester gelcoat doesn't adhere well to epoxy for some odd reason (even properly prepared). On another note, I think one of biggest problems with sanding the old gelcoat isn't so much doing the flat areas, which won't take long to scuff up with a power sander. Instead, apply TotalBoat 2-Part Epoxy Primer or TotalBoat TotalProtect Epoxy Barrier Coat Primer over TotalFair, before applying Gelcoat. I like the way the way 2 step finishes much more than the 1 step. As with all our products, if… Add to Wishlist + Quick View. The test included a variety of finishing processes. In addition, we varied the length of time the epoxy was allowed to cure before being subjected to high moisture conditions. FREE Shipping on orders over $25 shipped by Amazon. Typically, gelcoat isn't recommended over epoxy because they’re chemically incompatible and the gelcoat won't adhere properly. Vi lover at passe på dine data og holde dem sikret. The consistency of gel coat is very thick and is best applied with a spray gun. Spraying either gelcoat or paint requires tools that most people do not have access to. Fiberglass Repair – Using Gelcoat Over Epoxy. Metal flake is commonly used in clear gel coat for that “bass boat”. Crayolo, Apr 11, 2019, in forum: Fiberglass and Composite Boat Building. 4.6 out of 5 stars 16. That said I normally just paint over the epoxy without special prep. 22 Abrasives 25 Brushes/Rollers/Pans 19 Boat Parts And Accessories 18 Caulking 1 Clothing 54 Detailing 47 Epoxy Resin and Glue 35 Fiberglass 8 Foam/Core Material 16 Gel Coat 3 Hardware 3 Hardeners 23 Mold Fabrication 51 Paint 8 Polyester Resins 25 Putty/Fillers 22 Safety 9 Solvents 13 Measuring & Mixing 9 Tape 2 Trims and Seals 26 Tools 3 Vinyl Ester Products 7 Vacuum Bag Supplies Gelcoat will not fully cure without adding a surfacing agent or wax additive sanding aid. Suitable for use under all Interlux topside finishes, Epoxy Primekote® is a multi-purpose two-part epoxy primer. Gelcoat or 'Gel Coat' is a material used to provide a high-quality finish on the visible surface of a fibre-reinforced composite.The most common gelcoats are thermosetting polymers based on epoxy or unsaturated polyester resin chemistry. FREE Shipping on orders over $25 shipped by Amazon. will epoxy resin bond over old gelcoat if its cleaned up with 36 grit and degreased with solvent, or does the gelcoat have to be completely removed down to bare glass using silver tip epoxy for console repairs . Properly applying gelcoat is the key to a good finish. If the gelcoat is in good condition with no major cracking or crazing, the job is relatively straightforward—clean and prepare the surface, apply an epoxy primer, sand the primer, remove the sanding residue and then apply the topcoat. While epoxy adheres tenaciously to cured polyester, the reverse is not true, so the bond between an epoxy repair and an overcoat of polyester gelcoat will not be strong. The larger the area, the polyester will be more difficult to work with and more likely to malfunction (not cure).-Mix and apply the epoxy to the surface to be repaired. TotalProtect will fill in tiny scratches due to its high-build capabilities, but it’s not a fairing compound or filler. Frankly trying to build an epoxy-polyester-epoxy structure is a terrible idea. The tests were done on a gelcoat finish over a simulated repair made with epoxy. Many of our customers are hesitant to use it, thinking it’s too complicated or they think they can’t end up with a good finish. You can over-spray with PVA before gel coal reaches its gel stage (5-10 min. Lenny Makes Her Shine! As a polyester-based gelcoat it brings the advantages over epoxy gelcoat of being highly polishable and offering excellent UV stability. However, for relatively small cosmetic repairs, epoxy resin can be used in the repair layup if you do the following: Measure the epoxy and hardener accurately, mix properly, and apply as directed. Although I've never tried it. Use polyester for repairs that will be gelcoated. -Applying polyester resin (like gelcoat) over epoxy is very tricky and must be done extremely carefully. However epoxy and polyester don't cure together well. What distinguishes GC50 from a conventional polyester gelcoat is its exceptional bond to epoxy laminates. Repairing damage to your gelcoat and fiberglass can seem intimidating, but when done properly, can be a simple and even quick repair. Surface prep is critical so be sure to completely remove the amine blush. Their literature claims that gelcoat will adhere just fine to properly prepared West Systems epoxies. If your gelcoat is looking really dull, with no bright or shiny spots, you'll need to apply polish first. It is not often used as a post-production finish coating, but it can be applied over epoxy and is useful in some repair situations. With no bright or shiny spots, you can apply gelcoat coal reaches its gel stage ( min... 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