The weight of MEKP 925 is 1.125 grams per cc. ADD TO CART. 0000001463 00000 n 19 drops per oz @ about 75 degree produce a quicker drying time with better results . It is only when mixed with an epoxy hardener that they can cure properly. 0000003229 00000 n If using a wood mixing stick, place the stick in resin before adding catalyst so the wood doesnt absorb catalyst. Fasteners, Boat Windshield Telescopes, Covers and 0000017788 00000 n 3. use an eye dropper to catalyze small quantities 20 drops of mekp per. 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. xref The ratio range for catalyst to resin is 1 to 2 percent hardener to the total volume of resin to be used. !0Y|McnY>s,O*T* "LbfM;W20wmw!L Deals, Electrical In the meantime, you might find this article helpful: Gel Coat Application Guide - How to apply gelcoat correctly (fiberglasssupply.com) Last edited: Jun 1, 2022 0000023354 00000 n Cups are are wax coated. Come join the discussion about engines, modifications, classifieds, troubleshooting, fishing, boating, poles, maintenance, and more! Deals, Dealer Mix 2-3% of MEKP Hardener into the Gel Coat. At this point, the repair is ready to prep and spray/brush with gelcoat. Man I hope its working. & Sonar, Trolling For each teaspoon (1/6 oz) of blended gelcoat paste, add four drops of hardener. Manufacturer, Boat Tables & This should be added after all other additives just prior to application. There are a couple of possibilities though, one is with so little catalyst needed it will get hard no matter what the end user does, two maybe most people just use small amounts and with a short gel time it won't drain out as much and the other reason has to do with resin chemistry. High Back Reclining Helm Seat, Cabin and Biminis, View How do you know how many ml's per drops you are getting? Downs, Couplers, Mounts, Generally, mix one-pint batches. You can measure the fluid ounce (s) of resin in a clean mixing cup. Gel coats are often the exterior coating for composites parts, providing both the color and texture of the part. Once gel coat has tacked up, about 20 minutes after final layer has been applied, lay-up of the part can begin. Gelcoat Putty Repair Spider Cracks And Fill Gouges! Be sure to have a good strategy when applying your gelcoat. The higher the temperature, the less hardener you need. The Right Fit, Shop By Riptide Terrova 80 Trolling Motor w/i-Pilot & Bluetooth, Inflatable trailer %%EOF Epoxies are much simpler to get a good ratio by weight. Breakers, Power Packs & Jump Patch booster is used with a 5:1 ratio or about 20% by volume. 06/2024 at the best online prices at eBay! This item has a shelf life of approximately 2-3 months. . Holder, Anchor & Dock 0 Outboards, Shop The normal ration of resin to catalyst is just over 1% but should not go over 2.5%. Otherwise, one coat will do. Boat Gel Coat - Spectrum Color, Pumps and Supplies, Boston Whaler, 1972-1993, 0000001255 00000 n 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. JavaScript is disabled. 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. I used the other MEKP and it seemed to be working and got a tad bit on my skin and could feel it burning a little. Parts, Wash Down Racks, Fish Finders, Sounders The heavier fast-cut grits (40/80/100) are used to feather sand and ground out a routed area prior to filling. Financing, Iboats Parts, Inflatable The specific gravity of MEKP is 1.045. The percentages in the chart: 1% thru 2%, are percentages of resin or gelcoat by weight. You should also feather the surrounding area of the gel coat repair with 220/330. Approximately ten drops of MEKP to each 1/2oz. There are 2 thinners that are recommended by the manufacturer when spraying gelcoat: Patch Booster, and Duratec. Measures Chart (Example - 1 Gallon = 231 Cubic Inches and 0000023127 00000 n Rails, Marine Tools & Tool Acessories, Fishing Outriggers & It is mixed with a gel coat of one .. Gel Coat Repair Kit | Fiberglass Repair Kit, 3M Marine Adhesive/Sealant Fast Cure 4000UV, 3m Spray Adhesives, Cleaners, and Applicator Guns, MEKP > MEKP for gel coat > gel coat catalyst > gel coat hardener > hardener for gel coat > 132662 > 132661. Sparky568 Junior Member. See more Enter the amount of Resin in quarts then adjust % of MEKP using the slider. 0000002243 00000 n Generally speaking, for Polyester Resins, the mixing ratio is 2% i.e. Description. xref That's the problem. Covers, Boat Shrink Wrap Most re-sprayed gelcoat will cure in 2-4 hours, although overnight cures are ideal. Mekp is too hard to measure by drops to me, so I use a syringe and do it by ml instead. Login, Boats Product is flammable, use caution! Its a very small number. Wells, Toilet & Waste Winches, Boat Motor Supports & Motivational and inspirational sources to all those parents to enjoy life with their babies, Home FAQ How Many Drops Of Mekp Is 1 Oz Of Gelcoat. Boat Repair, Boat Paint & Each of these coats of gelcoat may involve several passes. Watch on. of Gelcoat = 2% 3% is the Maximum ratio. 0000007919 00000 n Cushions, Lexington Get a proper measuring cup and syringe and use cc's or ml's for both. 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. If there is a trim color, you should have a narrow trim brush on hand. FGCI s Brushable Gelcoat is a unique proprietary product with excellent leveling characteristics, allowing application by paintbrush or roller without leaving brush marks or streaking. How many drops of MEKP is 1 oz of gelcoat? How? your boats Gel Coat Match, Shop 0000001926 00000 n The ratio is 1-1 oz tube per quart, or a 4 oz tube per gallon. Gelcoat that is . & & Circuit Avoid brushes that are either too stiff or too soft. RESIN, Quarts. MEK, short for MEKP, is the "Hardener" or catalyst for Polyester Resin and Vinylester Resin Systems including Isothalic and Gelcoat. If youre not sure how thick it is, pick up a mil gauge. For a better experience, please enable JavaScript in your browser before proceeding. 2. Another option is you can use an 800 grit compound for the gelcoat at this stage. Resins that have Duratec in their name require a 2% mix ratio (2 2/3 ounces per gal Grande Mastere Dreade Snag's spellchecker 20,728 5,208 3026'36.2"N 8832'13.8"W Hardware, Boat Cabin 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.Next decide if you want to use an aluminum, plastic or paper cup to house the gelcoat. of Gelcoat w/o Wax = -1 oz. How to Apply Gelcoat by Brush and Roller. Maintenance, Boat Cleaners & They are sturdy and smooth on the inside to help with complete mixing. Please refer the to Catalyzation chart on the Gelcoat page or on the label. All rights reserved. Hardware, Boat Trailer Beside above,how many drops of resin are in an ounce of mekp? We suggest 1-1/4% to 1-1/2% by volume, i.e. Mix in the MEKP at 1-1.5% and see if it works ok on a test panel. of wax; 32 oz. This is a simple, easy way to see the thickness of your gelcoat. For example, four drops of hardener will be 1 percent of 1 ounce of resin. If this is going over a patch, we recommend 2 coats at least, to get a nice, uniform surface. I purchased the gel coat which is matched to my color hull from Ranger boats and purchased MEK ( catalyst ) from O'Riley. You should mix about 4 oz and that will be 1.375 cc/ml. MEKP is hazardous. At 70 degrees, you get 15 minutes, but at 90 degrees, you only get 5 minutes. 0000001899 00000 n Go on line to gelcoat suppliers like Spectrum to confirm how many drops of mepk they recommend. Dock, Cabin and As soon as you are done spraying, clean your sprayer fully with acetone. 0000005113 00000 n Once you mix and catalyze, you have about 15 minutes to apply the gelcoat before it starts getting hard or starts togel. The actual working time depends on the amount of catalyst and how hot the working conditions are. The mid point of 1.5% is most common. 0000030571 00000 n If you're doing a larger project and counting drops of catalyst is not an option, base the amount of MEKP required on the weight, not the volume, of the resin. 0000006855 00000 n UV inhibitor is added to increase weathering stability. Or UPGRADE! 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. Motors, Fishing Downriggers & Use one or the other. At 77F 1.8% MEKP will provide a gel time of 10-17 minutes. However, if you have opacity problems two coats may be necessary with a light sanding between coats. Its best to do a 4-foot by 4-foot area at a time. As nouns the difference between catalyst and hardener is that catalyst is (chemistry) a substance that increases the rate of a chemical reaction without being consumed in the process while hardener is one who, or that which, hardens. This time element is dependent on material temperature, room temperature, humidity, air movement, and catalyst concentration. Add the MEKP . Epoxy activators are all proprietary, depending on the product. How to mix Fiberglass Resin & Clean Tools. Use these calculators and mix very small batches until you achieve the desired result. Click Here. xb`````Uc p7T,T30H3r``dHbecatXbuk(Y7jc>#`9in4; @Qn gg`(g ` 7 0000018032 00000 n 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. 2 What is Topcoat? . 1 Oz is recommended for 1 Quart of Gel Coat or Resin. The application of gelcoat is pretty straightforward when you follow this guide. Tops, Bimini Top Accessories, Boat xb```a`` If applied onto a floor without the hardener, the resin would remain a near liquid indefinitely and could not transform into a durable flooring system. 2. gelcoat needs a surface seal of some kind to inhibit air on the surface. Can I spray gelcoat with an airless sprayer? Catalyze your material so that it has a longer pot life. = 1.17 polyester resin= 1.09 gelcoat = 1.3, Equivalent In this video I show you how to use some basic math to accurately measure the correct amount of MEKP for your polyester products. Tackle Boxes, Fishing Bait & Registered User. 0000003380 00000 n 0000012247 00000 n The secret to a good finish is to apply the gelcoat properly. A good practice is to pour the mixed gel coat from the mixing container into another container used for application. Accessories, PWC Parts & 7-Eleven Large Pepperoni Pizza. Less MEKP gives a slower cure, more gives a faster cure. WEIGHT The exact weight measurement for these ratios is slightly different from the volume ratio due to resin and hardener density. Take steps to cover and protect the rest of the boat before starting. Do not work in direct sunlight. Following this, it should be wet sanded with 320, 400, and 600 wet grit paper, buffed, polished and waxed. Furniture, Boat Seat Pedestals & Hardware, Boat Seats by Use a gelcoat thickness gauge to ensure proper thickness is achieved. The warmer the temperature the less MEKp you would to activate the gelcoat/resin. It needs to be handled with care. How much hardener is in a quart of resin? Video, GPS Chartplotters & Gelcoat will not fully cure without adding a surfacing agent or wax additive sanding aid. 8 drops 16 drops 16 drops Add the MEKP to the Gelcoat before thinning. Remember to always lap wet. 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. FIB-603 -- 2 oz (for 1 gallon of resin) FIB-604 -- 240cc for 5 Gallons of resin. Rafts, Paddle Measure catalyst accurately. 1 ea contains 1 ea . Check the temperature of the Gelcoat stock and insure that it is not below 70F. . Seats, Fishing Boat 0000013646 00000 n Do not use more than 1 oz tint per quart. Well, first and foremost, using a Catalyst Chart or these Catalyst Calculators will increase the quality of your work. The gelcoat set up what was left in the mixing tub before I threw it out. 0000022891 00000 n Caulking, Marine Engine Again I'm not a fan of "drops" because its super subjective. Below are two FREE MEKP Calculators and a MEKP CHART to simplify the process of determining the proper ratio of resin to catalyst or gelcoat to catalyst. Required fields are marked *, Please note, comments must be approved before they are published. Biminis, RV & Trailer (1 pint) 1/4 ounce: 32 oz. Gelcoat is significantly heavier than Resin because of the fillers and pigments added. Okay, so how is this MEKP Catalyst Chart or these handy Calculators useful? Use a gelcoat spray gun such as ES Manufacturing Gelcoat Spray Gun G830, ES-G100 Spray Gun, or equivalent. Good news! Resin that cures still in the mixing pot is unusable. Used as the hardener (activator) in Gel Coats and Resins. How to choose the right bottom paint for my boat, Painting Your Boat with Interlux Bottom Paint: A Step-By-Step Guide. Rollers, Boat Trailer Poly products need to be sealed from air to fully cure. The correct ratio is 11cc per 1/2 gallon. I always go way over the amount needed. Drink Holders. The most common sticky problems are: Tacky, Sticky Resin: the problem occurs when two components A and B are measured and mixed inaccurate or curing in cold temperatures. The ease of application makes this the perfect gelcoat for repairs and small parts production with no wax needed. Usually 320 or 400 grit wet paper is sufficient for the initial sanding. The color wet is the color when dry. Free shipping for many products! Maintenance, Pumps and Unfilled resin can heat up to 300F resulting in cracking. 1 GALLON 2 OUNCES Trailer Winches, Shop Insurance, Boat Does gelcoat need wax? ACCOUNT, Find Methyl Ethyl Ketone Peroxide (MEKP) MEKP is a clear hardener/catalyst for the room temperature cure of unsaturated polyester and vinyl ester resins. d23 ?P90. Parts, Sacrificial Anodes & xbbb`b`` 2 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. How Many Drops Of MEKP Is 1 Oz Of Gelcoat? If youre not sure how thick it is, pick up a mil gauge. Apply the gelcoat using a brush or spray gun. When mixing MEKP with resin, take care as a violent mixing action can splash it out of the mixing container. The total area to be glassed is 90 square feet. One gallon will cure approximately 100 gallons of resin and 50 gallons of gelcoat. Clean the fiberglass surface with ajax or comet and water. Gelcoat needs to be applied evenly. Should I use gelcoat with or without wax? Seats, Pontoon Boat Seats & 2007 Beavertail Opsrey - 2017 Suzuki DF60A. Accessories, Big Jon 0000009357 00000 n Apply gel coat in 4-5 layers at approximately 5 mils each, allowing 15-20 minutes between layers for a total thickness of 20-25 mils. #3. If you want CONSISTENT RESULTS every time you mix, YOU NEED to MEASURE BY WEIGHT NOT VOLUME!! PFDs, Roof Racks, Carriers, 3 This should be Noted when Buying Gelcoat and Topcoat; 4 Buying Gelcoat / Gelcoat Repair Kit; 5 Buying Topcoat; 6 Instructions for Gelcoat Repair. 625 CC per ounce of gelcoat. . & We recommend 1.5% 2.0 % by volume. X`:.geS>Xpiq~\\|=)Dv0'O-GFT# The Ideal range is 1.8% @ 77F (approximately 12 drops per ounce of gelcoat.) 1 Oz is recommended for 1 Quart of Gel Coat or Resin. PINT (16OZ) 1/4 OUNCE In temperatures below 70 degrees, the paraffin can QUART (32OZ)1/2 OUNCEsolidify in the bottle. Have you ever spent what seems like days measuring drops of mekp or catalyst for your polyester resin? ounce of gelcoat will give you 2% ratio at gel time of 20 to 30 minutes at. To catalyze TotalBoat Polyester Laminating Resin, at 77F, add 7-8 drops of MEKP catalyst per one fluid ounce of resin. 11 0 obj<> endobj Boat, Boat Buyers When adding it to gelcoat, you must also add the MEKP (methyl ethyl ketone peroxide) hardener. I liked using 19 drops per oz on my second try (more catalyst is specified when gel coat is mixed with wax . then sanding the gel coat down starting with 150, 220, 400 wet and 600 wet. Put the bottle in the sun or in front ofa lamp to reliquify. This morning not even tacky and hard enough to sand already! The two componants when mixed will react with each other to crosslink and polymerise into a solid plastic. You are using an out of date browser. With the new ratio of .6 CC per oz of gelcoat everything took perfect. 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. The resin's reaction starts with the addition of MEKP at 0.5% to 1.5 % (2 % for thin laminates). 0000015038 00000 n Ventilation, Interior & Cabin Gelcoat should not be used when temperature conditions are below 60F, as curing may be adversely affected. Category, View 1 What is Gelcoat? All Gelcoats from the Bottom Paint Store comes with the MEKP catalyst but additional amounts can be purchased. More features, tools? Helm Seats, Shop What would make this better and more useful? Gelcoat Repair Part 2: Mixing and Application. Blocks, Marine Transom Hardware, Marine Marine Coat One Iso/Npg Marine Gel Coat White with Wax with MEKP Catalyst for Hardening, Plus 6 Color Tinting Pigments for Your Perfect White Match (1 Quart) 4.4 out of 5 stars 352 3 offers from $33.99 Preparing the Surface for Application: Next, youre going to have to clean the surface. 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. Also, they are used for the first sanding of gouges, dock dings, scratches, and blisters. I would forget the drops and using ounces. Holders, Cabin Accessories & Use the recommended thinners/additives only which are listed on the gelcoats product page. Outdoor Hub, LLC (d/b/a Carbon Media Group), 30800 Telegraph Rd, Suite 1921, Bingham Farms, MI 48025 USA. Boat, Sell A Mix thoroughly for at least one minute and apply immediately after. This is about polyester gel with MEKP hardener. Be sure not to use foam rollers because they tend to leave the bubbles. Covers, Other Waxes, Boat Cleaning Let the polyester filler cure until material is firm and tack free, about 10 minutes. Gel coat will not fully cure without adding a surfacing agent or over spraying with PVA. B. We suggest a thickness of 18-20 mils to properly cure. Do you sell MEKP? There are about 20 drops in a cc/ml, so for 4oz of gelcoat you would mix 27 drops of MEKP. This MEKP is the catalyst/hardening agent for polyester resins and polyester gelcoats. Easy! The cabin top is 9 feet wide by 10 feet long (910=90 square feet). Gelcoat should not be applied over paint, wood, metal, or concrete. When sanding areas that have been filled with putty we suggest using 40 or 80 grit sandpaper, depending on how large the repair is. Trolling Motors, Shop Thanks in advance for your help. CATALYST LARGE QUANTITY CHART Catalyst Concentration Resin Quantity Quart Gallon 5 Gallon 1/2% 1/16 oz 2/3 oz 1 1/3 oz 3/4% 1/4 oz 1 oz 5 oz 1% 1/3 oz 1 1/3 oz 6 2/3 oz 1 1/2% 1/2 oz 2 oz 10 oz CATALYST SMALL QUANTITY CHART CatalystConcentration Resin Quantity30 drops = 1 cc 2 oz 4 oz 8 oz 12 oz 16 oz 1/2 % 9 drops 18 A forum community dedicated to Small Skiff owners and enthusiasts. MEK, short for MEKP, is the Hardener or catalyst for Polyester Resin and Vinylester Resin Systems including Isothalic and Gelcoat. It has to be mixed at a 1:1 ratio with gelcoat. Ski, Wakeboard Beside this,how many drops of hardener do i need for gelcoat? This works on every single polyester product, not just the amazing products at totalboat. Plumbing, Anchor Biminis, Paint and Thanks for the help. Mike, Your email address will not be published. of Catalysts to be Used with Polyester Resins MEKP - Number of oz. Resin and Gelcoat differ in weight. per Volume). Failing to do so will result in the resin not hardening as it should. . Mixing thoroughly is just as important. Yes, you can spray gelcoat with an airless sprayer however it is it is recommended to use a pressure of 3000 psi.The pressure at which you spray gelcoat depends on the type of gun you are using. Fillers are added to help control peak exotherm, shrinkage, and cure rate. Hardware, Boat First, decide if you need one or two coats of gelcoat. Parts, Rule 1500 GPH Automatic How many drops of Polyener resin are in an ounce of hardener? Catalyzing Gelcoat with MEKP: All gelcoat MUST be catalyzed with MEKP to cure. Upgrade the Premium MEKP Catalyst Calculator by WEIGHT EXCLUSIVELY offered by Vernese Customs. Add 14 drops of liquid hardener per 1 oz. 0000030992 00000 n Check color thoroughly before applying. Why is my resin not hardening? 20ml for every 1kg of Resin in working conditions at room temperature. <]>> Instruments, VHF Radios & Large quantities will exotherm and kick off very fast, leaving you with a smoldering mess in your cup. You could also go to a local pharmacy such as CVS and ask for a few. Ft. @ 10 Mils), Catalyst Concentration by CC (Volume of Catalysts to be Used with Polyester When MEKP is mixed with polyester or vinylester resin, the resulting chemical reaction causes heat to build up and cure or harden the resin. 50 Graduated Paper Cups Perfect for mixing small batches resin, paint, stain, epoxy from 1 to 3 ounces. The Fora platform includes forum software by XenForo. Pot life at 75F is approximately ten minutes. Ideal range is 1.8% @ 77F. **NOTE** Duct tape is recommended over masking tape because it provides better protection. Gelcoat without wax is used when you have a different method selected to cure it. Using the drop method, 4 drops are used. 38 in. oops! Mix in the MEKP at 1-1.5% and see if it works ok on a test panel. 0000002707 00000 n We all have a phone with a calculator so that makes this process even easier. Gel time at 1.8% MEKP is 10-17 minutes. Apply gel coat to mold surface. Deals, Electronics How many Oz is a slice of pizza? 0000018269 00000 n Salto. How much does a gallon of polyester resin weight? However as at least one third of the gelcoat is particulate and not resin a mix of just 1.oo % should be fine. Handles, Life Jackets & 0000002777 00000 n Marine Battery Chargers, Shop DO NOT WORK IN DIRECT SUNLIGHT -Choose a shady location or an overcast day. You may purchase this item if you desire additional . 0000023817 00000 n MEKP %. of Gelcoat = 1.5% @ 75F. Thanks, 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. The MEKP Calculators by WEIGHT are Dead-On when it comes to precision and Superior to any Catalyst Chart. Forums, Find Shop online or request a free catalog. Professionals, Boat Restoration, Building, and Hull Repair, Shop Adding cured meats such as pepperoni or sausage adds even more sodium. All Gel Coats from Bottom Paint Store come with MEKP with each gelcoat purchase. Ounces (Volume 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.

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