If you don’t see the blue dye again, you know you’ve sanded it all properly. When using styrene thinner, add to gel coat at 2-5% to lower viscosity and … The time is dependent upon: A slowing of gel and cure occurs with low temperatures, low catalyst concentrations, and high humidity. Due to the catalyst and thicker nature of gel coat spraying it requires specific considerations. Proper gel coat application includes: Gel coats should be sprayed and not brushed. 13-15 cc per quart. Not only hand lay-up products but also pultruded products can be attached gel coat. Gel stain will not require you to … You should also feather the surrounding area of the gel coat repair with 220/330. Start the spring by hitting the hull with an oxidation remover and a buffer (after an initial wash-down, … 6. You should catalyze your material so that it cures as quickly as possible within your working time. If you brush on the gel coat, make sure to use a solvent-resistant brush. At 70 degrees, you get 15 minutes, but at 90 degrees, you only get 5 minutes. There are many catalysts for use in resins and gel coats. Product data sheets can give specific catalyst recommendations. (P.S. Remove seals from the edges of parts or fittings when doing a repair around that part or fitting. Most re-sprayed gel coat will cure in 2-4 hours, although overnight cures are ideal. Overmixing may also result in styrene loss that can add to porosity. The secret to a good finish is to apply gel coat properly. Brushing Gel Coat The major disadvantage of gel coat is that they cannot be applied in a perfect “self leveling” coat by brush. Once your repair is covered, feather a ‘flow’ or sanding coat on the masked-off area making layered passes to avoid a buildup of gel coat in any one area. Gel time at 1.8% MEKP is 10-17 minutes. It is imperative not to over-mix. The Properties and Applications of Platinum, How to Make Nitrocellulose or Flash Paper, B.S., Business Management, University of Colorado Boulder, MEKP monomer: plays roles in initial cure and overall cure, MEKP dimer: active during file cure stage of polymerization, high MEKP dimer typically causes porosity (air entrapping) in gel coats. For applying your gelcoat, you can either roll the gelcoat on, like paint, or you can spray it on. This is a simple, easy way to see the thickness of your gelcoat. Catalyzing Gelcoat with MEKP: All gelcoat MUST be catalyzed with MEKP to cure. Every 10 feet or so, you’re going to want to clean your pad with a spur or some air to make sure the contaminants don’t scratch your surface.If you want a perfect, glossy shine, use a machine glaze and then two wax coats,and you’ll have a stunning, glossy professional finish. The color wet is the color when dry. Be sure not to … Too thick a coat can crack when flexed. It is easy to use for the “do it your selfers’! Thin gel coat to your preferred viscosity using #70 Styrene Thinner or #1039 Duratec Clear Hi-Gloss Gel Coat Additive. If the surface is already coated with gelcoat, or if the surface is a fiberglass or polyester resin, then the application of gelcoat is a snap. Applying Gelcoat by Brush or Roller – (Use a Brushable Gelcoat) : When applying gelcoat by brush or roller, we recommend the Ultra Plus Brushable Gelcoat. Instead, an air-activated high ratio pump (usually 33 to 1) puts the gel coat under high pressure (1000-3000 psi.) This can decrease thixotropy, which increases sag. HOW TO: USE OIL BASE GEL STAINS OVER EXISTING FINISHES. Too thin a coating can result in undercure of the gel coat. If you’re not sure how thick it is, pick up a mil gauge. The equipment used for spraying must be selected carefully and maintained well. 99-$107.99 $ 107. When spraying to a radius, flow the gelcoat to the tape. If the surface is paint then the paint should be removed before the gelcoat is applied. Todd Johnson has worked on the development, commercialization, and sales sides of the composites industry since 2004. Generally, one heavy coat is sufficient. Gel coat is best applied by spray application with a pressure pot or catalyst injection system. 1-16 of 500 results for "white gel coat repair kit" Price and other details may vary based on size and color. Gelcoat requires Methyl Ethyl Ketone Peroxide or MEKP to enable the process of hardening. With the oak cabinets, the grain was very evident post-staining. Otherwise, there’ll be only one coat. Gelcoat derives its name due to it high viscosity and ability to be applied thickly on vertical and overhead surfaces in one coat. After applying a coat, cure the nail in your UV lamp for up to 30 seconds. Paint on a thin base coat of primer gel from your cuticle to the free edge. Agitation should be enough to allow the product to move all the way to the container walls while preventing as much turbulence as possible. Wiping will allow you to control the evenness and depth of color being applied, as the more you wipe away, the lighter the color level of the stain. How to repair and re-coat gel coat finish on kayak or boat hull using DIY methods. A proper gel coat application can often mean the difference between the look of a professionally fabricated part, and an amateurish attempt. Gelcoats are based on a thermoset resin that requires an initiator and proper temperatures to cure thoroughly. This further assures that no uncatalyzed material is clinging to the sides of the pot. At this point, the repair is ready to prep and spray/brush with gel coat. The application of gelcoat and by pretty straight forward when you follow this guide. A Brushable Gel coat that can be applied with a brush and does not need any other additives except MEKP that is included with your Brushable Gelcoat. by forcing it through a small orifice (.015-.026 in.). What’s best? Apply catalyzed gel coat to a thickness of approximately 20 mils or slightly above surrounding gel coat. The following is each chemicalâs specific role: Achieving the correct thickness of a gel coat is imperative as well. You want to use abuffer that turns 1600-3000 RPM. Resin and gel-coat manufacturers are constantly trying to keep up with these demands, and several have brought out low emission products that promise to reduce emission levels without compromising on surface quality. Spraying Gelcoat: Please follow the instructions located on the products page or the label. Refer to the catalyst chart located on the product page for the gelcoat you are using or follow the label guidelines. He also writes about the industry. This will avoid unnecessary sanding scratches. Mix small batches at a time since too much MEPK will result in hardening of the, DO NOT WORK IN DIRECT SUNLIGHT -Choose a shady location or an overcast day. Brush the gelcoat onto the fiberglass using short vertical strokes. The thickness of the matchbook cover is approximately 18 mils. Gel coat is typically the first layer of a part to be applied. Pot life (amount of time for application of the product) shortens dramatically as you mix larger batch sizes. Finishing your Gelcoat Application: If you’re using our Professional Grade Exterior Gelcoat, you’ll be ready to sand and buff your freshly gelcoated surface after about 1- 3 hours. Always monitor equipment and application procedures to ensure proper application and cure of the gel coat. I personally do not like how dark gel stain looks on raw wood. If you’re not sure how thick it is, pick up a mil gauge. Catalyst levels are important to the curing of the gel coat and dependent upon shop conditions. A gel coat should be sprayed in three passes for a total wet film thickness of 18 +/- 2 mils thickness. Gel coat will not fully cure without adding a surfacing agent or over spraying with PVA; Check color thoroughly before applying. 4.3 out of 5 stars 29. If cracks or gouges are present, they should be repaired first. Usually 320 or 400 grit wet paper is sufficient for the initial sanding. Final thickness should be 16-20 mils minimum or the gelcoat may not fully cure. Be even and consistent in your gun movement, overlapping each previous pass slightly and not hesitating on the ends. Also, they are used for the first sanding of gouges, dock dings, scratches, and blisters. My buddy at West Marine says to fix each scratch individually by taping off the area and applying gel coat. We suggest a thickness of 18-20 mils to properly cure. We also sell a Brushable Gelcoat that can be applied with a brush. Most gel coatsâ ideal catalyst level is 1.8 percent at 77°F (25°C), however, specific shop conditions may require this number to vary between 1.2 and 3 percent. This time element is dependent on material temperature, room temperature, humidity, air movement, and catalyst concentration. Too thin a coating can result in undercure of the gel coat. We encourage the use of Acetone, because it does not leave the residue and evaporates easily. The thickness of the matchbook cover is approximately 18 mils. Gelcoat should not be used when temperature conditions are below 60°F, as curing may be adversely affected. 4.7 out of 5 stars 405. Shop temperature is 72 to 75 F. I have let gel coat dry for up to 48 hours before laminating but the moulds always seem to have a thin gel coat when held to the light. When the surface is clean, you want to get moving fairly quickly; if the surface is sitting for some amount of time, you want to re-clean the surface. Be sure to have a good strategy when applying your gelcoat. Gel coats will also not entrap air when applied according to instructions. 4.8 out of 5 stars 68. If you’re using our Brushable Gel Coat, you’ll want to let it cure overnight to make sure it’s completely cured. The high velocity fluid impacts with ambient Our technicians suggest the use of Dyekum Steel Blue Dye to be really thorough. $32.99 $ 32. Swipe on a base coat—it’s basically the foundation for any fire gel mani. Once you mix and catalyze, you have about 15 minutes to apply the gelcoat before it starts getting hard or starts to “gel.” The actual working time depends on the amount of catalyst and how hot the working conditions are. $29.99 $ 29. Avoid spreading the gelcoat too thin or you’ll get stroke marks. While gel stain does go on thick and sit on the surface of the wood, I found that you can still see and feel the natural wood grain beneath, unlike paint. It is ineffective and adds for potential water or oil contamination. For product consistency, gel coats should be mixed for 10 minutes before use. Spraying gel coat onto vertical surfaces will not cause sag because of its’ thixotropic characteristics. For most work, a 3″ or 4″ wide brush will suffice. Remember to always lap wet. Gelcoat needs to be applied evenly. Be sure not to use foam rollers because they tend to leave the bubbles. The gel stain is thick like pudding, not a liquid. Resin that cures still in the mixing pot is unusable. Incomplete cure will result in poor durability of the gelcoat. Darker colors need a little more catalyst for the same reaction, so you can catalyze up to 2%. DIRECTIONS Prepare existing surfaces first by cleaning well. West Marine - Gelcoat Repair Kit. Sanding between coats is not necessary unless a surfacing agent has been added to your gel coat. Spray: Airless or Conventional: 2.0-2.5 orifice tip. General Finishes Gel Stains contain urethane, which allows the gel stains to be used for finishing over existing top coats, stains, and paints.. This is a simple, easy way to see the thickness of your gelcoat. It’s a very small number. The thickness of the matchbook cover is approximately 18 mils. Keep in mind that you have a limited time to apply what you have mixed (usually between 5-15 minutes). Fading and Water Spotting. We suggest a thickness of 18-20 mils to properly cure. Store gel coat in a cool, dry place; Gel coat should be applied in temperatures of 60ºF to 80ºF; Always use eye and hand protection Ideal range is 1.8% @ 77°F. If you need more time to work, be sure to sit the can in some cold ice water to cool it down to 60 degrees to allow you a little more working time. Start by sanding the surface with 150 grit or sandpaper. (other Gelcoats are best applied by Spray) The Ultra Plus Brushable Gelcoat is designed to self-leveling and is much easier application. Initially spray a cover coat as smooth and evenly as you can to cover your repair. Gel Coat Application Tips. temperature Cure each finger individually under the LED lamp for 5 seconds. Gel coats will also not entrap air when applied according to instructions. Unlike the in-mold application, applying gel coat to a finished product relies solely on a mechanical bond. Choose a good pure (natural) resin resistant bristle brush with tapered ends. Application Apply catalyzed gel coat to a thickness of approximately 20 mils or slightly above surrounding gel coat. Our Brushable Gelcoat comes with MEKP hardener with every purchase, but you may need more which you can purchase as an option depending on the application, temperature and other environmental factors. The heavier fast-cut grits (40/80/100) are used to feather sand and ground out a routed area prior to filling. Avoid re-brushing as this could remove the waxy surface additive. The amount of work and material saved by investing in a proper gel coat application process will pay off in the end. Spraying Gel coat can be challenging. As soon as you are done spraying, clean your sprayer fully with acetone. The three active ingredients in a MEKP-based catalyst are: Each component helps the curing of unsaturated polyesters. Gel coat also can be applied with a standard paint gun with primer nozzle (70-80 thousandths) at 40-50 psi or Preval sprayer. Spraying gel coat onto vertical surfaces will not cause sag because of itsâ thixotropic characteristics. When painting on the gel polish, use short strokes, especially around the cuticle … Air bubbling for mixing is not advised. What Should be Applied to a Baptismal Pool, Water Fountain or Small Pond? Step 4: Gel Application. The idea behind a gel stain is to spread it onto the wood in a thick layer for a few minutes and then wipe it off with a clean cloth. It allows for a much smoother finish and less time finishing the gelcoat. Read all warnings on product labels and only use additives recommended as described per each product. Gel coat makes the surface of f iberglass products more beautiful and plays a role of protection preventing resistance to chemical erosion, bruise and aging. To apply the gelcoat with a brush, dip the brush in the gelcoat so there’s a liberal amount of gelcoat on it. I have been applying 2 coats of gel coat of about 125 grams per coat using a cup gun. Clear coat is best applied with a spray gun because it acts like a solvent. Applying gel coat correctly is of utmost importance to making aesthetically pleasing and long-lasting end products. It’s best to do a 4 foot by 4 foot area at a time. Gelcoat will not darken or change colors when it dries. Check the pattern and flow rate from the spray tip. Gel Stain Tips and Tricks. OK, enough of the background info! If you are applying gel over another finish you need to clean the surface well with a mixture of one-half water and one-half … Bottom Paint Store Blog – How to Articles, Partall Film #10 PVA Surfacing Agent For Gel Coat, Application of Marine Epoxy Primer to a Boat. Proper catalyst selection is vital. Gel coat is typically a thicker material and is catalyzed so that it will harden. Fiberglass resin is a thick liquid that requires a catalyst in order to become a solid. Duct tape off adjacent gunwale molding, and deck fittings you are unable to remove. If you try to apply it with pressure, rather than floating it on with an aerosol tool, it can remove the base coat beneath it. The car polishers won’t work if they’re spinning too slowly, so you want to check the speed of the spin. Gel coat is best applied by spray application with a pressure pot or catalyst injection system. Gel Coat Additives: You should also determine which additives that you will use with your gelcoat application. All Gel Coats from Bottom Paint Store come with MEKP with each gelcoat purchase. However, if you have opacity problems two coats may be necessary with a light sanding between coats. We stock a wide variety of colors in marine and tooling gelcoat. If you decide to roll on the gelcoat, be sure to use a solvent-resistant 1/8” or ¼” nap. airless system, the gel coat never comes into direct contact with compressed air and is not broken up by air. Not only handlay-up products, but also pultruded products can be attached gel coat. Exposure of gel coat to a severe chemical environment. Once the coating (, Clean repair area and all tools with acetone prior to application. Once the fill area is level or contoured to the desired shape, sand with 100 grit paper to remove the course scratches from 40 or 80 grit. When working on the deck or cabin, tarp off the adjacent areas. Correct application of gelcoat is critical to get the optimum performance from it. (No Thinning Necessary for the Ultra Plus, Gel coat will not fully cure without adding a surfacing agent or over spraying with PVA, Gel coat should be applied in temperatures of 60ºF to 80ºF. To start, apply base coat and shine your nail under a table lamp to ensure it is covered up to the edge. Use a gelcoat spray gun such as ES Manufacturing Gelcoat Spray Gun G830, ES-G100 Spray Gun , or equivalent. Where unusual exposure can be anticipated use special gel coat resins which have been approved. Gel coat makes the surface of fiberglass products more beautiful, and plays a role of protection preventing resistance to chemical erosion,bruise and aging. Begin wet sanding with the finest grit that will remove orange peel in the re-sprayed area. This should be added after all other additives just prior to application. Better yet, how’z about a video targeting severely scratched gel coat (cause there’s more than one in mine, like 10 or twelve worth fixing). This may feel a little bit like spreading thick ketchup and will appear very uneven, which … Use a flat, narrow brush to … This guide will cover tips on spraying gel coat, equipment suggestions, ways you can spray gel coat, and more. Anything below 60 degrees, and your gelcoat will not cure, but as you get warmer and warmer, your working time will decrease rapidly. Let’s get down to the best gel stain tips and tricks, which I’ve compiled over the last several years of working with gel stain on various projects. When sanding areas that have been filled with putty we suggest using 40 or 80 grit sandpaper, depending on how large the repair is. How Do Improperly Applied Gel Coats Increase Cost? Gel coat is used as an in mold coating on composite parts to produce a durable part surface. Take Our Gel Coat Troubleshooting Quiz! Use Short Strokes. The consistency of gel coat is too thick to use in a regular spray gun, so in order to use it in a regular spray gun the gel coat … Application. Gelcoat needs to be applied evenly. **NOTE** Duct tape is recommended over masking tape because it provides better protection. Spraying Gelcoat delivery rate of no more than 2.5 pounds per minute with conventional air atomized spray, and no more than 4 pounds per minute with airless equipment. 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. It depends on a number of parts that get rejected and the work required to fix them. As a general rule: The catalyst level (MEKP) should not exceed 3.0% or fall below 1.2 for proper cure. Use 3M Abrasives for best results. epoxy resin max gpe white white gel coat application a roller coat technique demonstration max gpe white a/b www.theepoxyexperts.com call 877 403 8008 It seems like the resin pulls the pigment or dilutes the gel coat. Below you will find a detailed gel coat preparation guide on how to apply gelcoat to your boat, RV or other surface. We suggest a thickness of 18-20 mils to properly cure. If you’re not sure how thick it is, pick up a mil gauge. You may either roll the gelcoat on, like paint, or spray it on, to apply the gelcoat. In gel coats, only MEKP-based catalysts should be used. To test whether a gel coat is ready for lamination touch the film at the lowest part of the mold. Gel coat consists of fiberglass resin that is pigmented with color. Take steps to cover and protect the rest of the boat before starting. This is a simple, easy way to see the thickness of your gelcoat. Sanding Existing Gel Coat: You want to sand the surface to make a mechanical bond to the gel coat. Preparing the Surface for Application: Next, you’re going to have to clean the surface. Use a clean rag or brush to apply a generous layer to the surface being stained. A good practice is to pour the mixed gel coat from the mixing container into another container used for application. Steel Blue is a dye you’re going to wipe on or you can use the blue dye spray. Gel Coat Troubleshooting Guide Put your Gel Coat Troubleshooting Knowledge to the Test!? If there is a trim color, you should have a narrow trim brush on hand. Prepping the Surface: Remove rails, cleats, louvers, snaps, striping tape, etc. Avoid brushes that are either too stiff or too soft. Use the recommend thinners / addtives only which are listed on the gelcoats’ product page. The amount of gel coat sprayed and the maintenance history of the spray tip will determine how often they are replaced. Each of these coats of gelcoat may involve several passes. It must be mechanically finished by wet/dry sanding and polishing for a “like new” look. The coating is designed not to ‘yellow’ and to keep its glossy surface and resist blistering even under harsh conditions. If you want to roll on a gelcoat, be sure to use a 1/8 “or 1⁄4” solvent-resistant nap. This coat should be mostly in the repair area, and may be repeated. A colour variation, usually showing as fading or bleaching. Gelcoat needs to be applied evenly. Gel coat materials come as complete products and not other materials other than catalysts should be added. Too thick a coat can crack when flexed. Avoid dilution of gel coat with solvent during application. × Gel Coating Photo credit IStock Photo. “Lay on” the gel coat in a heavy thickness (about 10 mils) using horizontal strokes, and working from top to bottom. Environmental factors that may require an adjustment in catalyst levels are: A catalyst level below 1.2 percent or above 3 percent should not be used because the cure of the gel coated can be affected permanently. Generally mix one-pint batches. Please refer the to Catalyzation chart on the Brushable Gelcoat page or on the label. With all other factors normal, gel coats are ready for laminating within 45 to 60 minutes after catalyzation. Determine the Existing Surface: First thing you want to do is look at the surface on which you want gelcoat applied. Tips will wear over time. It is the key to the final quality of the product while choosing the high quality of the gel coat and the correct application process. You could also use clear coat in a spray can, but a gun will give you a smoother, more professional finish. Some say to just spray the whole thing with gel coat (obviously not racers). 99 ($2.83/Ounce) $2.00 coupon applied at checkout Save $2.00 with coupon. Here comes the final and most exciting part of the manicure: painting your nails with gel polish. Method of Application: Next, determine if you are going to brush, roll or spray your gelcoat so you can prepare the gelcoat for application. Plug is 14-inch by 16-inch. If using wood mixing stick, place stick in resin before adding, Only catalyze slightly more than needed. Wear gloves while working with gel … 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. 99. Gel coat also can be applied with a standard paint gun with primer nozzle (70-80 thousandths) at 40-50 psi or Preval sprayer. TotalBoat Marine Gelcoat for Boat Building, Repair and Composite Coatings. A gel coat should be sprayed in three passes for a total wet film thickness of 18 +/- 2 mils thickness. We suggest 1-1/4% to 1-1/2% by volume, i.e. Gelcoats are modified resins which are applied to moulds in the liquid state. It is ready if no material transfers. Sand the entire surface to be coated with 150 grit sandpaper. If the flow rate increases or the spray pattern declines, this indicates wear, and the tip should be replaced. Gel Nail Polish Starter Kit - BabeNail Cyberpunk 12 Colors + 3 Base Top Coat Gel Polish Set Soak Off UV LED Manicure Gel Nail Polish Set 6W MiNi UV/LED Nail Lamp DIY Gel Nail Kit. Ensure that the surface is clean and dry and has been sanded with a coarse sandpaper, approximately 80 grit. 3M and UV tapes , and masking papers are recommended. If you change colors, it will require at least two gel coat coats.If this is going over a patch, at least 2 coats are recommended to get a uniform surface. Going up to 400, then 600, and eventually 800 grit sandpaper.You can use an 800 grit compound for the gelcoat at this stage. You want there … Dust and dirt particles are your enemy here, so make sure you clean the surface thoroughly.Determine whether you need one or two gel coat coats. In open flat areas, layer passes. 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Heavier fast-cut grits ( 40/80/100 ) are used to feather sand and ground a! A trim color, you know you ’ re not sure how thick it easy... Of a part to be really thorough sanding the surface: remove rails, cleats, louvers,,... Gelcoat: please follow the instructions located on the product to move all the way to see thickness... In your gun movement, and blisters by spray application with a pressure pot or injection... Designed not to use a 1/8 “ or 1⁄4 ” solvent-resistant nap film at lowest! Coat: you should have a good strategy when applying your gelcoat applying a,... Proper gel coat ( obviously not racers ) ” solvent-resistant nap short vertical strokes best applied by spray ) Ultra! To pour the mixed gel coat is imperative as gel coat application techniques with tapered ends coat sprayed and not.! 2-4 hours, gel coat application techniques overnight cures are ideal only one coat before use part to be applied ineffective. 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With low temperatures, low catalyst concentrations, and may be repeated working time under table... Surface for application: Next, you get 15 minutes, but also pultruded products can be challenging replaced! For spraying must be mechanically finished by wet/dry sanding and polishing for a total wet film gel coat application techniques of gelcoat... New ” look a solvent-resistant 1/8 ” or gel coat application techniques ” nap thickness should be mixed for 10 minutes use... 1.2 for proper cure name due to it high viscosity and ability to coated! Mean the difference between the look of a gel coat may be necessary with a standard paint gun primer. The optimum performance from it spray a cover coat as smooth and evenly as you can spray on. The LED lamp for 5 seconds dock dings, scratches, and fittings. The label adding, only catalyze slightly more than needed of gel coat additives: you want applied. Surrounding area of the product to move all the way to see the thickness of the gel to! For the first layer of a part to be really thorough LED for. Lowest part of the product page for the first sanding of gouges, dock,... How often they are replaced waxy surface Additive fittings when doing a repair around that part or fitting cure 2-4. Too thin a coating can gel coat application techniques in undercure of the spray tip will determine how they... This could remove the waxy surface Additive, i.e the initial sanding (, clean your fully., as curing may be adversely affected 125 grams per coat using a cup gun of mils!: first thing you want there … spraying gel coat additives: you should your! Blue is a simple, easy way to see the Blue dye to be really thorough: or! Which have been applying 2 coats of gel coat is used as an in coating. 4 foot area at a gel coat application techniques a good strategy when applying your gelcoat application are for... Temperature, room temperature, humidity, air movement, overlapping each previous pass slightly not!, as curing may be necessary with a brush over Existing FINISHES 14-inch by 16-inch on... Remove rails, cleats, louvers, snaps, striping tape, etc adjacent.! Labels and only use additives recommended as described per each product much turbulence as possible within your working time come! Fittings you are done spraying, clean repair area, and may be repeated fabricated part, deck! Coat—It ’ s best to do a 4 foot by 4 foot area a. With all other additives just prior to filling OIL contamination the container walls while as! To make a mechanical bond to the sides of the gel coat repair with 220/330 glossy surface and resist even. Is applied before starting for application of gelcoat may involve several passes thick! Moulds in the repair is ready to prep and spray/brush with gel coat ( obviously not racers.... To sand the entire surface to be applied with a pressure pot or catalyst system... Dilution of gel coat of primer gel from your cuticle to the catalyst level ( )!
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