How to apply gelcoat over gelcoat. The questions I have are on the other two ...

How to apply gelcoat over gelcoat. The questions I have are on the other two surfaces. Learn more here! A guide to applying Crystic gelcoats for optimum performance and aesthetic finish. Gelcoat and Fiberglass repair can seem intimidating if you have never done it before. Now that you have used the wax, you have to sand between coats to remove the wax before applying another layer. I go over some of the standard practices that pros use to get excellent results with ease. Gelcoat repair kits are a great way to get started with the process of fixing or repairing your gelcoat and getting a custom gelcoat match for your repair. Polishing helps bring back the luster, and applying quality marine wax products help protect it from fading. Do not over catalyze or apply super thick or it will Feb 15, 2021 · How To Paint Over Gelcoat Firstly, you decide if you would rather a professional do the job or you, with little or no experience. Gelcoat repair seems to be a mystery to many people. Sanding: Use 40–80 grit sandpaper for heavy removal or shaping and 220–330 grit for feathering edges of the 4. You can also apply substances such as PVA over gelcoat without wax. Typically, gelcoat isn't recommended over epoxy because they’re chemically incompatible and the gelcoat won't adhere properly. 3M makes a vinylester based filler for marine use. ecfibreglasssupplies. Add melp and use a flexible plastic spreader, drag the gelcoat putty into the damaged sections ( prep damage with 80-120 nothing finer grit wise) leaving the putty slightly high because it will shrink a little. Vertical #boat #fiberglass #gelcoat #boatrenovation #composite #rvlife #car #composite #jetski #sailing #automobile #rvrenovation #custom Learn the expert techniques for applying gelcoat nonskid coatings Oct 28, 2022 · If the gelcoat can't be saved, do you replace the gelcoat? Or do you opt for painting? Here's all you need to know about replacing or painting over gelcoat! Before use, mix the gelcoat for 10 to 15 minutes with a paddle-type mixer. Keep in mind that you have a limited time to apply what you have mixed (usually between 5-15 minutes). In this comprehensive tutorial, we show you how to spray gelcoat like a pro on a budget! Whether you're a DIY enthusiast or just looking to save some money o Dec 24, 2024 · Wondering if you can paint over gelcoat on boats or fiberglass surfaces? This comprehensive guide reveals effective techniques to enhance your watercraft’s appearance. It is important to note that the Orca Guard Polyester ISO NPG cannot be used over epoxy resin. **Final Thoughts** Investing time and effort into understanding ceramic coating and gelcoat correction can dramatically enhance the aesthetic and longevity of your vehicle's finish. This article will discuss how to apply the gelcoat with the brush and roller method. A full drum requires a higher mixer speed to create a bottom-to-top rotation movement in the drum. Wet Sanding, Polishing, and Waxing to a like New Factory Finish. Change rags often so you aren’t smearing the old wax over the surface. It washes off with water so easy to use. I am not fond of it. We would like to show you a description here but the site won’t allow us. Check out my other videos on how to fiberglass like a pro, how to clean a gelcoat gun like a pro and how Jun 6, 2017 · The Boating Forum - Bilge Area - Gelcoat with wax vs Awlgrip vs Bilgekote - Let me start by saying that I've read a ton of threads on this and it seems like people are using different methods. It does leave a texture, and it is a flat finish, but it works great. You'll need to apply the gelcoat thick, to give you sanding room, you want to have around 15 to 20 mills thickness AFTER sanding and buffing. Gelcoat will not darken or change colors when it dries. Because you will be applying multiple coats, you will need laminating gel coat, not finishing gel coat. After coat cure, you can still spot fill etc. I used cheap dollar store deep nap rollers. Feb 11, 2010 · If you have used a gelcoat coating in the past, you will need to remove it completely with an acetone solution. Re-gelcoating has a few differences to painting. **Protection**: Consider applying a ceramic coating over the corrected gelcoat for added protection. Si vous décidez d’appliquer le gelcoat au rouleau, veillez à utiliser un rouleau à poils de 1/8″ ou ¼ » résistant aux solvants. It will not stick to paint, epoxy, or any protective coating. They are polyester based and absorb water like a sponge. Some in the industry and repair professionals say it can be done well with proper surface preparation and others say if looks good when first applied but eventually fails within a year, sometimes much less. Whether you're working on boats In the original video I showed you how to apply gelcoat with a roller and brush to cure some polyester resin. The ideal mixer speed will change as the volume of the drum decreases. May 27, 2022 · Gel coat coverage depends on how thick you apply it but a gallon will yield approximately 35-75 square feet. I would avoid any automotive type fillers. However, over time, exposure to sun and weather can take a toll on its appearance, leading many to ask the question: “Can you paint over gelcoat?” This article aims to explore that question in depth, examining the considerations, steps, and potential pitfalls of Feb 2, 2024 · Are you looking to give your boat a fresh, shiny new finish? Spraying gelcoat is a great way to restore the appearance of your vessel. Sep 15, 2022 · Professional Grade Exterior Gelcoat can be applied either by Spraying, Brushing or Rolling. However, for very small cosmetic gelcoat repairs, epoxy can be used, then finished with gelcoat, as long as you do all of the following: Measure the epoxy resin and hardener accurately, then mix and apply, as directed. Today I am showing you how to do a commercial grade Gelcoat repair in full detail. 1. Getting the mix right will ensure that the gelcoat cures properly, without causing issues like bubbles or cracks in the finish. If you want to apply gelcoat over paint, you also have to prime first, or if there is gelcoat under the paint, remove any coatings to expose the old gelcoat before applying new gelcoat. In this the 20th episode of Building the explorer we will be rolling and some Tipping the final Top Coat (Waxed Coat) of Gelcoat on the fiberglass of the boat. Nous vendons également un gelcoat brossable qui peut être appliqué avec un pinceau. Find out how to check the cure, avoid styrene vapors, and measure the wet film thickness of gelcoat. Learn how to apply gelcoat over gelcoat with proper temperature, film thickness, and initiator level. Im going to use clear gelcoat over the top of the gelcoat. If brushing or rolling, use smooth, consistent strokes, allowing each thin coat to cure to a tacky state before adding the next. Mar 23, 2015 · Fairing compound for use prior to gelcoat should be either polyester or vinylester based. The secret to a good finish is to apply the gelcoat properly. Aug 4, 2024 · Learn when to apply a second coat of gelcoat, how to prepare the surface, and what factors affect curing and recoating. Feb 2, 2010 · I just repaired my transom and glassed in the top. May 27, 2025 · Final Thoughts Whether you’re restoring your hull’s shine or reinforcing a damaged section, knowing when to use gelcoat vs epoxy ensures your boat stays safe, seaworthy, and beautiful. Gelcoat isn't just a pretty resin that makes the vessel look nice; it protects the fiberglass surface and acts as a barrier to water absorption. For each teaspoon (1/6 oz) of blended gelcoat paste, add four drops of hardener. (for textured walls) With layup resin the only prep is to prevent it from getting dirty before you gel. I am going to spray gel coat over the repair area. Aug 31, 2013 · G'day, I doubt gelcoat is what you are wanting here, if you sand off any sharp high points on your lamination and apply flowcoat, which is a waxed, pigmented resin with a matt finish, you will be well on your way to an acceptable finish. Applying Gelcoat 4 different methods. May 23, 2024 · Introduction To Gel Coat Gel coat is a protective layer applied to fiberglass surfaces, but can you paint over it? Yes, you can paint over gel coat by following the proper preparation steps, such as sanding and cleaning the surface, before applying the paint. Tip: Gelcoat exposed to air will remain tacky—use a wax additive or PVA on the final coat to ensure a full cure. What is the correct method for spraying clear gelcoat over freshly sprayed gelcoat? Should the gelcoat be sanded before applying the clear? If so what grip paper should be used? How to Apply Gelcoat to Your Boat To maintain the look and sea-worthiness of your ship, Gelcoat is necessary. Besides sanding and wiping down before application will I run into any type of snags while doing this. Mar 18, 2024 · Gelcoat, known for its protective properties and glossy finish, is a common choice for boat hulls and recreational vehicles. This layering approach promotes a uniform finish and proper thickness. I have been sanding for weeks, but it seems impossible to get it all down to the old gelcoat. Remember, just because you sealed all of the above with gelcoat, doesn't mean you can't start over in an area to redo something, because you can. In this video I show how to apply the gelcoat over a semi set layer of fiberglass and polyester resin ( of course its totalboat stuff ) Here I use a roller and a cheap chip brush. My question is do I need to apply primer before the gel coat and if so what is a good primer for this application. 08K subscribers Subscribed Aug 16, 2021 · New gelcoat finishes project a radiate shine, but over years that new-boat gloss can grow dull and chalky. I did exactly what you describe. It is advisable to use soaps specifically made for boats as dishwashing liquids may be too hard on the wax and lead to its breakdown. Today I am showing you how to do a professional-grade Gelcoat repair in full detail. After sanding, wipe the surface down again with the dewaxer, and allow it to dry completely before applying the After completing a bunch of small fiberglass repairs, the team wanted to change the color and decided to apply gelcoat with wax for a glossy finish. Your Hi all, I have a 1984 Islander Bahama 30 that has the original gel coat. Instead of wax or waxed gel coat use laminating resin. The quality of this application directly impacts both the final appearance of your camper and the durability of the repair over time. If the gelcoat has texture, it’s recommended to sand it level using 60–80 grit. To prepare the gelcoat surface, clean with TotalBoat Dewaxer & Surface Prep Solvent and sand with 220-grit sandpaper. Together, the two form a protective system far more durable than either coating by itself. Apply The Gelcoat With Care How you apply the gelcoat will significantly affect the smoothness and evenness of the finish. how to fix chipped gelcoat, how to restore gelcoat on fiberglass boat, prepping fiberglass for You can apply gelcoat over existing gelcoat without priming first. HOW TO APPLY GEL COAT Below you will find a detailed gel coat preparation guide on how to properly apply gel coat to your boat, RV or other surface. May 29, 2012 · Re: Metal Flake Help? how to do metalflake gelcoat also, can i seal, prime, and paint the boat, then use clear gel coat w/metal flake over the paint? will gel coat adhere to paint? After approximately 10-15 minutes You can now add the final coat of clear paste and glitter flake over the color base (if applied color base). Taking a careful and methodical approach here ensures a smoother finish and longer-lasting results. Be sure to sand the old Gelcoat to provide mechanical teeth to the new. My Nov 11, 2014 · I have a boat done in white gel, and I would like to apply a different color gel coat over the old gel coat. Mar 15, 2020 · What are the differences between Gelcoat and Topcoat and how are they applied? Learn everything about it, including Instructions. Jan 4, 2026 · Once the gelcoat is catalyzed, it must be applied quickly and evenly to the prepared surface. Watch short videos about boat gelcoat from people around the world. Gather materials and tools: To gelcoat your fiberglass, you will need the following items: – Gelcoat (your choice of color) – Catalyst (MEKP) – Clean mixing container – Paintbrush or roller – Sandpaper (80 and 320 grit) – Masking tape Can you apply gelcoat over epoxy? Andy conducted experiments debunking the myth that you can't; WEST SYSTEM epoxy can be applied successfully over gelcoat. The finish coating extends the life of the epoxy moisture barrier, which in turn provides a stable base that extends the life of the finish coating. Oct 24, 2023 · Gelcoat plays a crucial role in protecting and preserving the beauty of fiberglass surfaces, but can you spray gelcoat over old gelcoat? Its impact on the aesthetics and longevity of boats, RVs, and various fiberglass structures cannot be understated. Perfect for boat or RV restoration. Discover how to ensure a successful, long-lasting transformation while protecting against UV Sep 17, 2012 · Read up on how to spray apply new gelcoat over existing gelcoat (pressure , tip size and thinning). Gelcoat is a crucial component in boat maintenance, and knowing how to properly work with it can save you time and money in the long run. May 22, 2005 · Yes, you can apply gelcoat over fillers. The mold becomes a negative impression you can use to produce identical copies. Allow the epoxy to cure completely. Jul 25, 2025 · A proper gel coat application can often mean the difference between the look of a professionally fabricated part, and an amateurish attempt. Oct 4, 2011 · Re: Gelcoat! Wax or no wax? Yes you will be able walk on the first two coats of gel coat, that won't be a problem. Looking down the road a year or two I'd like to get the gel coat redone or else have it painted. What You’ll Learn: • Tools and products you’ll need for applying gel coat • How to mix gel coat and catalyst at the correct ratio • Application Yes, TotalBoat TotalTread Non-Skid Marine Deck Paint can be applied over gelcoat. I expect to spray the gelcoat on the Deck/Hardtop since they are flat horizontal surfaces for the most part. Bottom line: Successful gelcoat application depends on proper surface prep, correct catalyst ratio, and controlled application. Follow up by applying a de-waxing solvent using clean rags and the two-rag wipe on/wipe off method: one rag to apply, one rag to remove. Incorrect Surface Preparation Gelcoat adheres only to fiberglass, cured gelcoat, or polyester resin. Jan 5, 2011 · Below you will find a detailed gel coat preparation guide on how to apply gelcoat to your boat, RV, or other surfaces. How to successfully apply a gelcoat finish over WEST SYSTEM Epoxy. 08K subscribers Subscribed Another video from our GRP Quicktips Series - How to brush apply gelcoat. If you have to tape the perimeter, make sure you remove it before the gel Mar 18, 2025 · Applying gelcoat in multiple thin layers helps you avoid sags, runs, and air pockets. I normally add the non skid to the first coat, but it depends on how aggressive you want the non skid surface to be. Not epoxy! Mask off the surrounding areas for over-spray protection and clean the surface as described earlier. Cruisers & Sailing Forums > Engineering & Systems > Construction, Maintenance & Refit Will Gelcoat adhere to Epoxy? I will walk you through the process of applying fiberglass and gelcoat over plywood or composite materials, using either polyester or epoxy resin. Eventually, the rain soaks into the wood and begins to rot the frames. Gel coat will not fully cure without adding a surfacing agent or over spraying with PVA Spraying Gelcoat Check color thoroughly before applying. (close the door on the way out). co. It’s like painting on window frames: […] Gel coating seems to be a big Mystery to many people! It doesn't have to be! I will show you the TIPS and TRICKS, along with gelcoat HACKS that we use in our Boat building and boat repair business Jan 13, 2022 · I have three different areas that I need to apply gelcoat over the old gelcoat, Deck/Hardtop, Vertical Transom, and Bottom. I challenge you to watch this video start to finish and not learn something you didn't know about gelcoat repair. See how you can finish the Gelcoat Mar 19, 2020 · It will have some designs in the gelcoat. 3 days ago · Making a fiberglass mold from an existing part is a layup process where you apply gelcoat and fiberglass over the original part (called a “plug”), let it cure, then separate the two. Finish coatings like paint or varnish are applied over a marine epoxy barrier coat to decorate the surface and protect the epoxy from sunlight. Also, de-wax the boat prior to sanding. Verify that the drum mixer is Gelcoat without wax is often used to laminate gelcoat in stages and when applying to a polyester resin-saturated fiberglass. Gelcoat is not only a nice resin that makes the vessel look nice; it protects the surface of the fiberglass and serves as a barrier to the absorption of water. Before we start the spraying process, it’s important to know why you would choose gel coat over paint for your boat so you don’t get confused. Once you have fiber glassed over your plywood, you NEED to seal it with gelcoat! Gelcoat not only makes your fiber glass work look better, it seals and creates a water barrier for your raw Fiber 4 days ago · Applying New Gel Coat: This is the stage where precision matters most—applying the fresh gel coat. Jan 27, 2026 · Spraying Gelcoat: For best results spraying gelcoat, it is recommended to use a spray gun designed specifically for applying gelcoat and resins, such as the professional grade spray guns offered by FGCI and ES Manufacturing. Stir until you have a putty with the consistency of toothpaste. Will gelcoat adhere to the paint? Are there any primers for gelcoat? Could a paintable epoxy, something like a bottom barrier coat work as a primer? Take A cup of Gelcoat and add microballons ( aerocil, cabosil etc) . Eventually, however, it will grow dull again, and as time marches on, it gets Apr 20, 2011 · As far as Gelcoat curing when sprayed issues go, there's an additive for the Gelcoat that forms a waxing film over it when sprayed to allow quick curing. An alternative to wax is to put a film of PVA (Poly Vinyl Alcohol) to let the gel coat cure. Step 2 - Apply the Gelcoat Making sure that your gelcoat is applied evenly on the paintbrush, go over the base of the boat, beginning on one side and working your way over. Discover the unique benefits of combining Gelcoat and Epoxy, including enhanced durability, improved finish, and versatility for a variety of applications. The design of that hatch without its own aluminum frame unfortunately bakes the fiberglass and gelcoat it sits on, if you repair this suggest keeping the hatch covered with a lighter colored sunbrella or stamoid when not in use and switching over to a lighter colored plexi In this video, I show you step-by-step how to mix and apply gel coat for small boat repairs and DIY marine projects. Jan 27, 2005 · Spraying gelcoat over gelcoat Discussion in ' Fiberglass and Composite Boat Building ' started by alexhiguera, Jan 27, 2005. Apr 10, 2021 · Ive got some gel coat and some gel coat repair kits to try and seal this up prior to me putting on a bottom coat of paint. For a more comprehensive guide on How to Apply Gelcoat, please read this article. Jun 23, 2021 · Pour appliquer votre gelcoat, vous pouvez soit rouler le gelcoat sur, comme la peinture, ou vous pouvez le pulvériser. The quality of every part you pull from that mold depends on how well you prepare the plug, so most of the real work happens Watch reels about how to apply gelcoat to a boat from people around the world. Learn about preparation steps like cleaning and sanding, the best paint options, and maintenance tips to preserve your new finish. Feb 24, 2012 · Yep, you don't want any wax on the surface if you're going to spray gelcoat over it, the wax would just have to be sanded off before applying the gelcoat. ukPlea Sep 25, 2024 · Gelcoat is essential to maintain your boat's look and sea-worthiness. GELCOAT REPAIR 101 -A to Z How To Repair Chipped Gelcoat and How to Repair Gelcoat Scratches ALL ROLL AND NO TIP ;-) PAINTING YOUR BOAT WITH ALEXSEAL! How to FIBERGLASS over PLYWOOD!. Jan 27, 2026 · Apply in thin, controlled layers: Build thickness gradually rather than applying heavy coats. Aug 9, 2008 · Previous owner painted the boat with regular paint. The color wet is the color when dry. After sanding, wipe the surface down again with the dewaxer, and allow it to dry completely before applying the Yes, TotalBoat TotalTread Non-Skid Marine Deck Paint can be applied over gelcoat. Oct 8, 2025 · Learn how to paint over gel coat with expert tips, techniques, and best practices for a smooth, durable finish. Both require the same amount prep and fairing, but the application and finishing is quite different. Tired, old, thin and UV damaged gelcoat can be fixed my applying new Gelcoat over the old, here is show you one way to do it on a Contessa 32. Held up quite acceptably and acted as a sacrificial layer for the the areas receiving the most abrasion. If you want to paint over gelcoat, some paints may require you to apply a primer first. Types-Brushing, Spraying, Spray& Buff, Ultra Spray Rayplex Ltd 9. Gelcoat is easy with a decent compressor and gun. As the drum level goes down over time, the mixer speed needs to be reduced to prevent splashing or over-mixing. May 24, 2010 · Re: bondo and gelcoat You can use epoxy under gel coat. In this guide, you will learn how to spray gelcoat on your boat like a pro. GelCoat Repair, PART 2. How To Repair Gelcoat On A Boat, Gelcoating A Boat, Barnacle Removal For Boats With Gelcoat And More Mar 1, 2022 · As to your first point, there is considerable disagreement over whether you can apply Gelcoat over Epoxy. After making your decision, you clean your boat thoroughly with Acetone, preferably. This video focuses on a finish gelcoat application that you can use to get your boat We would like to show you a description here but the site won’t allow us. Learn more here! Vigorous over-mixing can introduce air bubbles that will show up on your finished surface. All materials seen are available for purchase at www. If you do not TotalBoat Gelcoat is a type of polyester resin, and as such, is not compatible over epoxy. when you go through the coat to do a repair or redo, just re gelcoat. You’ll see how to prepare the surface, choose the right materials, and apply the gel coat for a clean, professional finish. Even a so so gelcoat job that you don't take to mirror finish is still way better than any paint job when it comes to wear and tear durability . #boat #fiberglass #gelcoat #boatrenovation #composite #rvlife #car #composite #jetski #sailing #automobile #rvrenovation #custom Learn the expert techniques for applying gelcoat nonskid coatings These affiliate relationships do not affect our reviews or opinions expressed on this channel. Aug 21, 2023 · Ali Wood explains you need to know to make an invisible gelcoat repair, from preparation and filling to topcoat and polishing Nov 25, 2010 · Re: applying gel coat with a paint roller Your on the right track. Each material serves a distinct purpose— gelcoat for finishing and appearance, epoxy for strength and structural integrity. The principle difference between the two systems is in the final shoot. 4. Two primary methods are commonly employed: rolling and tipping or spraying. i have found lots of good information on how to apply gelcoat over existing gel coat but i cant seem to find any information on what to do if the gelcoat is completely gone and im just applying gelcoat to exposed glass. My question is prep for Clear gelcoat. Always remove existing paint completely before applying new gelcoat. You just have to properly prep the surface before applying the gel coat. It's like the paint on window frames. Protection Nov 11, 2025 · 1. Jun 16, 2009 · Sprayed black Ecklers gelcoat over a football shaped area of my fiberglass/green gelcaot Indy. 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. For spraying, use steady, even passes with a 50% overlap. I wouldn't even use an automotive poly based filler on a car, let alone a boat. Here, we’ll walk you through the 12 steps to apply gelcoat to your fiberglass surface. Over time, weather fades the paint and it starts to flake and fade. kqqibafb ovorp wetou bxfmjw xujyux kqzpilgd ztrcjl wczn ugme xnz