For use as a final coat over fiberglass layups or for repairs, this gelcoat cures to a hard, glossy surface. 0000022891 00000 n Blocks, Marine Hardware, Boat Seats by PDF AMOUNT OF RESIN OR GELCOA T HARDENER AMOUNT 1 OUNCE 10 DROPS (Colored I am going to be making some small repairs which will require my working with about a table spoon spoon of gel coat at a time, How much hardner ( Drops ) will I need to mix with a table spoon of gel coat to get a proper cure. 0000001279 00000 n (2% of MEKP for colder temperatures.) Only catalyze slightly more than needed. Compound and polish with Aquabuff 2000 then happy a wax such as Collinite 925 UV for protection. If one CC is roughly 30 drops as stated below that would put me at roughly 18.75 drops of MEKP per ounce of gelcoat. Always consider the width of the cloth plus an overlap allowance at the seams. Note: All gel coats and resins from the Bottom Paint Store include MEKp with the applicable size of gelcoat/resin. Now, Shop Turning brown or even worse your mixing jar catching on fire. The Ideal range is 1.8% @ 77F (approximately 12 drops per ounce of gelcoat.) At 77F, adding 14-16 drops of MEKP to one ounce of TotalBoat Polyester Fairing Compound will provide a working time of 10-15 minutes, and will cure in 20-30 minutes. It has to be mixed at a 1:1 ratio with gelcoat. Handles, Life Jackets & Usually 12 drops per ounce of gelcoat or 1.8% at 77F. ounce of gelcoat will give you 2% ratio at gel time of 20 to 30 minutes at. Prepping the Surface: Remove rails, cleats, louvers, snaps, striping tape, etc. as this one is). How do you know how many ml's per drops you are getting? Gelcoat should not be used when temperature conditions are below 60F, as curing may be adversely affected. CREATE What is the mix ratio for MEKP catalyst when using TotalBoat Polyester Breakers, Power Packs & Jump Grills, Boat Drink Motors, Fishing Downriggers & Or UPGRADE! This is a simple, easy way to see the thickness of your gelcoat. Keeping good notes will help you build a database of initiator levels for temperatures that you encounter frequently. Gel coat is typically the first layer of a part to be applied. For a better experience, please enable JavaScript in your browser before proceeding. 0000030571 00000 n Be even and consistent in your gun movement, overlapping each previous pass slightly and not hesitating on the ends. Jacks, Boat Trailer Brakes & We have all done it in a pinch, but there's a quicker way. All, Anchor & 141 0 obj <>stream 0000003229 00000 n Measurements need to be exact so you can be confident the gelcoat is mixed properly before applying it to the surface. 0000000016 00000 n for Sale, Buy A 0000003380 00000 n Usually 320 or 400 grit wet paper is sufficient for the initial sanding. Do the math, and that yields 0.96cc per 100g of resin for 1% and 2.4cc for 2.5%. Legal Disclaimer: User assumes all liability. A good practice is to pour the mixed gel coat from the mixing container into another container used for application. Instantly, you will gain predictable results. Method of Application: Next, determine if you are going to brush, roll or spray your gelcoat so you can prepare the gelcoat for application. 3 This should be Noted when Buying Gelcoat and Topcoat; 4 Buying Gelcoat / Gelcoat Repair Kit; 5 Buying Topcoat; 6 Instructions for Gelcoat Repair. will cover 160 Sq. Well it was not cured this morning after applying it last night which is either one of two things old hardener that came with the gelcoat or not enough hardener. Boarding, Paddles & If the gelcoat is in good condition with no major cracking or crazing, the job is relatively straightforwardclean and prepare the surface, apply an epoxy primer, sand the primer, remove the sanding residue and then apply the topcoat. of Gelcoat = 1.5% @ 75F. Covers, Boat Seat The Volumetric Calculators above are GREAT tools. We suggest a thickness of 18-20 mils to properly cure. If the gelcoat does not get enough catalyst it will not kick or begin to harden. Parts, Boat Tubing & They are flexible enough to make pouring easy. Resin that cures still in the mixing pot is unusable. 2Oz is recommended for 1Gallon of Gel Coat or Resin. If you brush on the gel coat, make sure to use a solvent resistant brush. How much MEKP is needed to catalyze TotalBoat Polyester Laminating How long do you wait between coats of gelcoat? Read all warnings on product labels and only use additives recommended as described per each product. Use milliliters its easier to do the ratio math. #3. To cure properly and completely, gelcoat needs to be devoid of oxygen. 0000006234 00000 n Ft. @ 10 Mils), Catalyst Concentration by CC (Volume of Catalysts to be Used with Polyester 3. use an eye dropper to catalyze small quantities 20 drops of mekp per. Practice and prepare!! 1 fluid Oz equals about 30ml if memory serves, so if you want 2% you would need 0.6ml of MEKP per oz of gel. We suggest 1-1/4% to 1-1/2% by volume, i.e. Measure catalyst accurately. The correct ratio is 11cc per 1/2 gallon. Sealant, & Mixed 3 new ounces of gelcoat and put between 1.8-1.9 ccs (0.625 ccs per oz) of MEKP in the mix for two minutes. Gel coat will not fully cure without adding a surfacing agent or over spraying with PVA. More if temps <60> 80 or 90. GPS Chartplotter and Fish Finder Combo, Find 1 ea contains 1 ea . Working time is about 5 to 15 minutes, . You can mix your material right in the lined cup and then simply insert the cast aluminum lid onto the lined cup, attach the cup to the gun and you are ready to spray. The Fora platform includes forum software by XenForo. oops! 0000002082 00000 n I would forget the drops and using ounces. If thinning is needed for gun/nozzle used then Patch Booster is a additive that will thin out gelcoat and not affect colors, such as acetone or styrene. Epoxy resins come in two seperate componants. Specific gravity MEK peroxide = 1.17 polyester resin= 1.09 gelcoat = 1.3 Equivalent Measures Chart (Example - 1 Gallon = 231 Cubic Inches and will cover 160 Sq. Boats, Propeller Parts & MEKP-925 Methyl Ethyl Ketone Peroxide Hardener Catalyst TotalBoat Polyester Fairing Compound & Marine Filler At 77F, TotalBoat Gelcoat requires the addition of 2% MEKP catalyst, by volume: 14-16 drops per ounce, or 2 teaspoons per pint, for a working time of 10-15 minutes. The application of gelcoat is pretty straightforward when you follow this guide. Ski, Wakeboard Deals, Trailering Newbury, MA. Resin starts to cure but does not go all the way completely. Large quantities will exotherm and kick off very fast, leaving you with a smoldering mess in your cup. Correct application of gelcoat is critical to get the optimum performance from it. Catalyzing Gelcoat with MEKP: The catalyst level (MEKP) should not exceed 3.0% or fall below 1.2 for proper cure. Boat Repair, Boat Paint & Zincs, Generator We encourage the use of Acetone, because it does not leave residue and evaporates easily. I used acetone and sanded off the old gelcoat. The heavier fast-cut grits (40/80/100) are used to feather sand and ground out a routed area prior to filling. Racks, Fish Finders, Sounders PDF Directions for Using MEKP Catalyst - Fibreglass & Resin Sales Cable, Marine Batteries & Polyester requires a 1-2% hardener ratio depending on temperature, so mixing 10 grams of gel at 1.5% means you have to measure 0.15 grams of MEKP. Chart for poly resin cure times vs. temp vs. MEKP? If one CC is roughly 30 drops as stated below that would put me at roughly 18.75 drops of MEKP per ounce of gelcoat. Get all the latest information on events, sales and offers. There are about 20 drops in a cc/ml, so for 4oz of gelcoat you would mix 27 drops of MEKP. Ropes, Boat Add the MEKP . At 70 degrees, you get 15 minutes, but at 90 degrees, you only get 5 minutes. FREE MEKP Calculator for Quarts and Ounces. Creating is very rewarding! Products, Carbon Monoxide & If you change colors, it will require at least two gelcoat coats.If this is going over a patch, at least 2 coats are recommended to get a uniform surface. 0000023586 00000 n Apply gelcoat in 4-5 layers at approximately 5 mils each, allowing 15-20 minutes between layers for a total thickness of 20-25 mils. 114 28 then sanding the gel coat down starting with 150, 220, 400 wet and 600 wet. Finishing your Gelcoat Application: If youre using our Professional Grade Exterior Gelcoat, youll be ready to sand and buff your freshly gelcoated surface after about 1- 3 hours. Epoxy activators are all proprietary, depending on the product. Parts, Rule 1500 GPH Automatic Also, they are used for the first sanding of gouges, dock dings, scratches, and blisters. Gelcoat will not darken or change colors when it dries. Here is the formula written out, remember products OTHER than resin require almost double the amount of MEKP to catalyze gelcoat, repair putty or fairing compound, for all your boat repairs or boat builds.Ounces of resin, times the percentage required of mekp times 30 equals the cc's required. Gelcoat Touch up | Sailboat Owners Forums Ideal for touching up scratched gelcoat. Sandable time: Depends on temperature, amount of catalyst, and mass of fairing compound. The ratio is on the hardener container. The thickness of the matchbook cover is approximately 18 mils. I want to say poly resin needs 10 drops of MEKP per 1 oz. Are there different types of gelcoat? - TimesMojo 0000003945 00000 n trailer 0000003724 00000 n MEKP Hardener 1 oz. How many drops of MEKP is 1 oz of gelcoat? You have a work time of approximately 15 minutes. 30 seconds, ensuring to scrape bottom and edges of the mixing container. Do you sell MEKP? On: July 7, 2022 Asked by: Rusty Daugherty Advertisement Always use 2% catalyst in Gelcoats. How many Oz is a slice of pizza? The secret to a good finish is to apply the gelcoat properly. 27. Ditch the oz's and drop crap. The cabin top is 9 feet wide by 10 feet long (910=90 square feet). Gelcoat that is . . Insurance, Boat As a general rule: The catalyst level (MEKP) should not exceed 3.0% or fall below 1.2 for proper cure. Sanding Aid / Surfacing Wax (Modifier-C) - Composite Envisions HELP! Gelcoat cure question | Boat Design Net . Does resin need hardener? Example: 20-30 minutes @ 77F for a 100g mass catalyzed with 1% MEKP. Application of Marine Epoxy Primer to a Boat, How to Identify the Type of Paint on My Boat, Using a Signal Coat Indicator for Repainting Ablative Antifouling Paint, Testing for Compatibility of Topside Paint with Awlgrip Topcoat. Gelcoat Putty Repair Spider Cracks And Fill Gouges! Please refer the to Catalyzation chart on the Gelcoat page or on the label. MEKP speeds up the curing reaction of the polyester resin in these . Most re-sprayed gelcoat will cure in 2-4 hours, although overnight cures are ideal. Use these calculators and mix very small batches until you achieve the desired result. PDF Gel Coat Instructions - Marine Gel Coat Repair Product | Marine Products TotalBoat Gelcoat for Marine RV Pools and More - Jamestown Distributors Terminals, Marine Fuse Blocks & You can use either a heavy-duty, reusable plastic cup or disposable paper cup for spraying gelcoat. 1 Oz is recommended for 1 Quart of Gel Coat or Resin. Use 6 drops of catalyst into 10ml of resin. Once the coating (gelcoat) has cured, it should be block sanded using 250 wet grit paper to remove all brush marks and high spots. Thanks in advance for your help. Ratio The ratio range for catalyst to resin is 1 to 2 percent hardener to the total volume of resin to be used. MEKP is hazardous. One gallon will cure approximately 100 gallons of resin and 50 gallons of gelcoat. There are 2 thinners that are recommended by the manufacturer when spraying gelcoat: Patch Booster, and Duratec. Again I'm not a fan of "drops" because its super subjective. You should mix about 4 oz and that will be 1.375 cc/ml. The amount of MEKp that you add to gelcoat and resin will vary with outside weather conditions. 0000009357 00000 n Telescopes, Covers and Have you ever spent what seems like days measuring drops of mekp or catalyst for your polyester resin? If using a wood mixing stick, place the stick in resin before adding catalyst so the wood doesnt absorb catalyst. Oz = fluid ounce . Remember to always lap wet. In this video I show you how to use some basic math to accurately measure the correct amount of MEKP for your polyester products. 4|#8sReSSq"la;&2%9(HC}cL1eM4%1wEo AND have fun!! This item is flammable and can only be shipped by ground. How to Apply Gelcoat by Brush and Roller. When rolling on gelcoat be sure to use a 1/8 or 14 solvent-resistant nap. Covers, Boat Wiring & Please follow the instructions located on the products page or the label. High Back Reclining Helm Seat, Cabin and PDF GELCOAT AND RESINS CATALYST RATIOS NCINSTGCCAT-v.2 - Multi-Tech Products The ratio is dependant on air temperature, resin thickness, temperature of resin and mold. More features, tools? Can I spray gelcoat with an airless sprayer? For the Water Clear Casting Polyester Resin, this drops to 1.5% or 15ml for every 1kg. What is brushable gelcoat? If youre not sure how thick it is, pick up a mil gauge. You could also go to a local pharmacy such as CVS and ask for a few. PDF Bondo fiberglass resin hardener ratio chart Mix thoroughly for at least one minute and apply immediately after. For a better experience, please enable JavaScript in your browser before proceeding. Thank you! DO NOT WORK IN DIRECT SUNLIGHT -Choose a shady location or an overcast day. gelcoat resin and catalyst - alameed-med-services.com When mixing small batches, catalyze with 12-18 drops hardener per ounce of gelcoat. 2007 Beavertail Opsrey - 2017 Suzuki DF60A. Hardware, Boat Pumps, Marine Pump Replacement 0000002707 00000 n Duratec is for a cosmetic high gloss finish. of Gelcoat w/o Wax = -1 oz. <<2369ebe0f6fbc740aa2d803257e02535>]>> We all have a phone with a calculator so that makes this process even easier. Every 10 feet or so, youre going to want to clean your pad with a spur or some air to make sure the contaminants dont scratch your surface.If you want a perfect, glossy shine, use a machine glaze and then two wax coats,and youll have a stunning, glossy professional finish. 0000001107 00000 n We recommend 1.5% 2.0 % by volume.