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 as this one is). 0000006855 00000 n 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. When spraying to a radius, flow the gelcoat to the tape. Get a proper measuring cup and syringe and use cc's or ml's for both. For each teaspoon (1/6 oz) of blended gelcoat paste, add four drops of hardener. Patch booster is used with a 5:1 ratio or about 20% by volume. I only go to 1% at 85 or above or if I'm doing a large panel or an intricate piece and need a little more pot time. 0000012247 00000 n 06/2024 at the best online prices at eBay! It's important that the fiberglass is clean before you gelcoat over it. Generally, one heavy coat is sufficient. %PDF-1.4 % If you want CONSISTENT RESULTS every time you mix, YOU NEED to MEASURE BY WEIGHT NOT VOLUME!! At 70 degrees, you get 15 minutes, but at 90 degrees, you only get 5 minutes. xref How much does a gallon of polyester resin weight? Go on line to gelcoat suppliers like Spectrum to confirm how many drops of mepk they recommend. & Riptide Terrova 80 Trolling Motor w/i-Pilot & Bluetooth, Inflatable Fishing Lures, Fishing Rod Holders & Mix thoroughly and methodically into the resin otherwise some portions of resin may not be catalysed and thus not cure properly. 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. Legal Disclaimer: User assumes all liability. 0000000016 00000 n 1 GALLON 2 OUNCES Under or over catalyzation retards curing and causes fading and chalking. . I liked using 19 drops per oz on my second try (more catalyst is specified when gel coat is mixed with wax . 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. Using the drop method, 4 drops are used. Bilge Pumps, Shop Pot life (amount of time for application of the product) shortens dramatically as you mix larger batch sizes. 1 What is Gelcoat? Keep in mind that it is best to mix in small quantities. If it is in the 60's use 2.5 cc/ml or 50 drops for 2% MEKP. This is a simple, easy way to see the thickness of your gelcoat. Tables, Minn Kota When working on the deck or cabin, tarp off the adjacent areas. The cc and oz values in the chart have been converted from weights of MEKP to volumes of MEKP. of Gelcoat = 1.5% @ 75F. You should mix about 4 oz and that will be 1.375 cc/ml. 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. Gel Coat Instructions - Marine Gel Coat Repair Product | Marine Products Sign up for newsletter: You've just added this product to the cart: FIRST QUALITY FIBERGLASS MATERIALS AT A PRICE YOU CAN AFFORD! 7-Eleven Large Pepperoni Pizza. For 50 g gel coat add 1 g catalyst (approximately 20 drops) For 100 g gel coat add 2 g catalyst (approximately 40 drops) The percentages in the chart: 1% thru 2%, are percentages of resin or gelcoat by weight. Should I use gelcoat with or without wax? 0000002082 00000 n Be sure to have a good strategy when applying your gelcoat. A forum community dedicated to Small Skiff owners and enthusiasts. The thickness of the matchbook cover is approximately 18 mils. The secret to a good finish is to apply the gelcoat properly. Shelters, Boat Gain access to PREMIUM Calculators by WEIGHT when you subscribe today. 0000001553 00000 n 114 0 obj <> endobj 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. Winches, Boat Motor Supports & Fenders, Boat Trailer This MEKP is the catalyst/hardening agent for polyester resins and polyester gelcoats. Working time is about 5 to 15 minutes, . Refer to the catalyst chart located on the product page for the gelcoat you are using or follow the label guidelines. Its best to do a 4-foot by 4-foot area at a time. 1 TBS = 1/2 oz. Tags: MEKP > MEKP for gel coat > gel coat catalyst > gel coat hardener > hardener for gel coat > 132662 > 132661. 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. Remove seals from the edges of parts or fittings when doing a repair around that part or fitting. At this point, the repair is ready to prep and spray/brush with gelcoat. The final thickness should be 16-20 mils minimum or the gelcoat may not fully cure. of Gelcoat = 2% 3% is the Maximum ratio. Motors, Fishing Downriggers & Use the spreader to add the . Resins MEKP - Number of cc per Volume), Catalyst Concentration by Creating is very rewarding! 0000002707 00000 n How Many Drops Of MEKP Is 1 Oz Of Gelcoat? 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. How much hardener is in a quart of resin? Be sure not to use foam rollers because they tend to leave the bubbles. endstream endobj 140 0 obj <>/Size 114/Type/XRef>>stream 0000003724 00000 n of wax; 32 oz. You want to use a buffer that turns 1600-3000 RPM. ENCLOSED: Dropper bottle that will yield the exact ratios referenced on this chart when mixing small amounts. Caulking, Marine Engine If youre not sure how thick it is, pick up a mil gauge. Ventilation, Interior & Cabin Add air dry wax (the wax will rise to the surface, creating that barrier), or if it's a small enough area tape a polyethylene film over it (zip lock bag.) We have all done it in a pinch, but there's a quicker way. Our technicians suggest the use of Dyekum Steel Blue Dye to be really thorough. Clean the fiberglass surface with ajax or comet and water. Mix the resin VOLUME To achieve the correct 2:1 mix ratio by volume, simply measure out 2-parts resin to 1 part hardener before mixing the components. Towers, Tow Ropes & Terminal Two Versions are available both Ounces and Pounds. Then use a rubbing compound to remove the rest of the scratches. & Sonar, Trolling The ratio range for catalyst to resin is 1 to 2 percent hardener to the total volume of resin to be used. Flow -coat on the other hand will have wax added, I suspect this might be what you have, (Gel-coat = no wax. usually a material called surfacing agent (wax/styrene) or P V A. 1 ea contains 1 ea . xb`````Uc p7T,T30H3r``dHbecatXbuk(Y7jc>#`9in4; @Qn gg`(g ` 7 Most re-sprayed gelcoat will cure in 2-4 hours, although overnight cures are ideal. Boat, Sell A Gel coat is typically the first layer of a part to be applied. Use a gelcoat thickness gauge to ensure proper thickness is achieved. 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. What would make this better and more useful? Rollers, Boat Trailer Mike, Your email address will not be published. The drops fogged vision in right eye versus using simple artificial tears. 0000003263 00000 n Manager at store told me to run 10-12 drops per oz of gelcoat I mix up. Products, Carbon Monoxide & For example, if you are using a conventional spray gun, you should set the pressure between 30 and 50 psi. Below are some things to consider when trying to figure out how many drops of mekp is 1 oz of gelcoat. 0000002105 00000 n All, Anchor & Accessories, Marine Electrical The color wet is the color when dry. Let's hope this works this time! 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. Start by sanding the surface with 150 grit or sandpaper. If you dont see the blue dye again, you know youve sanded it all properly. I purchased the gel coat which is matched to my color hull from Ranger boats and purchased MEK ( catalyst ) from O'Riley. On their own, epoxy resins are very stable fluids with relatively long shelf lives. xref For a better experience, please enable JavaScript in your browser before proceeding. Accessories, PWC Parts & Easy! The correct ratio is 11cc per 1/2 gallon. 0000000836 00000 n The MEKP Calculators by WEIGHT are Dead-On when it comes to precision and Superior to any Catalyst Chart. GPS Chartplotter and Fish Finder Combo, Find Measures Chart (Example - 1 Gallon = 231 Cubic Inches and 2. gelcoat needs a surface seal of some kind to inhibit air on the surface. Hardware, Boat endstream endobj 115 0 obj <>/Outlines 1 0 R/Metadata 14 0 R/PieceInfo<>>>/Pages 13 0 R/PageLayout/OneColumn/StructTreeRoot 16 0 R/Type/Catalog/LastModified(D:20130606150718)/PageLabels 11 0 R>> endobj 116 0 obj <>/Font<>/ProcSet[/PDF/Text]/ExtGState<>>>/Type/Page>> endobj 117 0 obj [118 0 R] endobj 118 0 obj <>/A 132 0 R/F 4/H/I/StructParent 1/Border[0 0 0]/Type/Annot>> endobj 119 0 obj <> endobj 120 0 obj <> endobj 121 0 obj <> endobj 122 0 obj <> endobj 123 0 obj [/ICCBased 133 0 R] endobj 124 0 obj <>stream When you purchase through links on our site, we may earn an affiliate commission, which supports our community. 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. 75 degrees F. If there is a trim color, you should have a narrow trim brush on hand. Mix the polyester resin with a catalyst named methyl ethyl ketone peroxide (MEKP) to begin curing. Duratec is for a cosmetic high gloss finish. Distribution, ProMariner ProNautic Mixing thoroughly is just as important. I would forget the drops and using ounces. (#69-A) unit can be shipped via standard ground service without hazard charges within the 48 contiguous United States. The specific gravity of MEKP is 1.045. You should catalyze your material so that it cures as quickly as possible within your working time. Combos, Fishing Tools & In this video I show you how to use some basic math to accurately measure the correct amount of MEKP for your polyester products. How? Do not use any other wax additive when using Patch Booster. Use one or the other. will cover 160 Sq. Accessories, Pontoon Bimini Rafts, Paddle Ditch the oz's and drop crap. The Fora platform includes forum software by XenForo. Downs, Couplers, Mounts, Use milliliters its easier to do the ratio math. Do not work in direct sunlight. Used as the hardener (activator) in Gel Coats and Resins. Then scale up!! Axles, Boat Trailer Tie Gel coat is a polyester resin and uses MEKP as the catalyst. Insurance, Boat Gelcoat Catalyst Requirements. Gelcoat that is . 38 in. I always go way over the amount needed. For example, four drops of hardener will be 1 percent of 1 ounce of resin. Covers, Boat Shrink Wrap Man I hope its working. Covers, Boat Seat Sanding between coats is not necessary unless a surfacing agent has been added to your gel coat. Gelcoat will not darken or change colors when it dries. Boat Gel Coat - Spectrum Color, Pumps and Racks, Fish Finders, Sounders You could also go to a local pharmacy such as CVS and ask for a few. Following this, it should be wet sanded with 320, 400, and 600 wet grit paper, buffed, polished and waxed. Gelcoat should not be applied over paint, wood, metal, or concrete. The minimum recommendation from Dow is 1% MEKP to resin by weight, with a maximum of 2.5%. 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. 2. Ski, Wakeboard They range from a 1:1 ratio, like with our Table Top Epoxy, to our standard laminating epoxy allowing a 1:1, 2:1, 3:1, 4:1 and 5:1, allowing for different ratios that effect hardness and gel time. Breakers, Power Packs & Jump Marble, Engine xbbb`b`` 2 0000001832 00000 n 0000001127 00000 n Hardware, Boat Seats by 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. Use 3M Abrasives for best results. All, Boat Bimini 0000023316 00000 n Financing, Iboats Compound and polish with Aquabuff 2000 then happy a wax such as Collinite 925 UV for protection. So bought a quart of MarPro gelcoat with wax with the MEKP hardener included. 0000002941 00000 n I do suggest you start small. We suggest a thickness of 18-20 mils to properly cure. 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. For example, four drops of hardener will be 1 percent of 1 ounce of resin. **NOTE** Duct tape is recommended over masking tape because it provides better protection. Refer to the catalyst chart located on the product page for the gelcoat you are using or follow the label guidelines. Amount of MEKP in Ounces. Failing to do so will result in the resin not hardening as it should. The ease of application makes this the perfect gelcoat for repairs and small parts production with no wax needed. How many drops of Polyener resin are in an ounce of hardener? 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. While it might eventually cure as long as it doesn't freeze, gel coat doesn't like temperatures below 10*C. It will take a minimum of two coats of gelcoat if you are changing colors. Pumps, Marine Pump Replacement 0000004021 00000 n The weight of MEKP 925 is 1.125 grams per cc. Method of Application: Next, determine if you are going to brush, roll or spray your gelcoat so you can prepare the gelcoat for application. Vinyl, Floating Boat trailer Resin starts to cure but does not go all the way completely. Turning brown or even worse your mixing jar catching on fire. Honda 5hp Outboard, Boat If you want to roll on a gelcoat, be sure to use a 1/8 or 14 solvent-resistant nap. DO NOT WORK IN DIRECT SUNLIGHT -Choose a shady location or an overcast day. 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. The ratio is 1-1 oz tube per quart, or a 4 oz tube per gallon. 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. We offer pre-mixed colors of gelcoat, use this color chart as a guide for the available colors that we have. Boat Repair, Boat Paint & Maintenance, Boat Cleaners & Systems, Marine Plumbing Mix thoroughly to ensure that all gel coat is properly catalyzed. Newbury, MA. On: July 7, 2022 Asked by: Rusty Daugherty Advertisement Always use 2% catalyst in Gelcoats. Accessories, Marine DC Power Plugs Sanding Existing Gel Coat: You want to sand the surface to make a mechanical bond to the gel coat. %%EOF We recommend 1.5% - 2.0 % by volume. I want to say poly resin needs 10 drops of MEKP per 1 oz. Clean the repair area and all tools with acetone prior to application. Resins that have Duratec in their name require a 2% mix ratio (2 2/3 ounces per gal You can measure the fluid ounce (s) of resin in a clean mixing cup. Below are some charts to help you figure out how much MEKP will be needed for the project. Gelcoat is available with or without wax. 0000000016 00000 n Clean repair area and all tools with acetone prior to application. 28.4cc Catalyst Amount by CC Catalyst Concentration by CC (Volume of Catalysts to be Used with Polyester This further assures that no uncatalyzed material is clinging to the sides of the pot. If this is going over a patch, we recommend 2 coats at least, to get a nice, uniform surface. FREE MEKP Calculator for Quarts and Ounces. One slice of pizza is about six ounces and 300 to 400 calories. It is typically used between 1.25% to 1.75% (1 2/3 ounce to 2 1/3 ounces per gallon). Usually 12 drops per ounce of gelcoat or 1.8% at 77F. 50 Graduated Paper Cups Perfect for mixing small batches resin, paint, stain, epoxy from 1 to 3 ounces. Helm Seats, Shop Gelcoat is significantly heavier than Resin because of the fillers and pigments added. Adding more of less of the catalyst agent will speed up or slow down the curing time for the resin. We suggest a thickness of 18-20 mils to properly cure. Now, once again, I know that we have been using 0.75% for our recommended minimum, and that has been successful all these years. 0 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. We suggest 1-1/4% to 1-1/2% by volume, i.e. The total area to be glassed is 90 square feet. Each of these coats of gelcoat may involve several passes. Outdoor Hub, LLC (d/b/a Carbon Media Group), 30800 Telegraph Rd, Suite 1921, Bingham Farms, MI 48025 USA. 1 Oz is recommended for 1 Quart of Gel Coat or Resin. Avoid re-brushing as this could remove the waxy surface additive. Mekp is too hard to measure by drops to me, so I use a syringe and do it by ml instead. Charts & of Catalysts to be Used with Polyester Resins MEKP - Number of oz. However, if you have opacity problems two coats may be necessary with a light sanding between coats. They are sturdy and smooth on the inside to help with complete mixing. This is the amount of Catalyst you will add in Ounces. Initially spray a cover coat as smooth and evenly as you can to cover your repair. Accessories, Big Jon 0000000872 00000 n %PDF-1.4 % When mixing small batches, catalyze with 12-18 drops hardener per ounce of gelcoat. MEKP Hardener 1 oz. Approximately eight drops of MEKP to each 1/2oz. When adding it to gelcoat, you must also add the MEKP (methyl ethyl ketone peroxide) hardener. Tackle Boxes, Fishing Bait & Epoxy resins come in two seperate componants. When rolling on gelcoat be sure to use a 1/8 or 14 solvent-resistant nap. However as at least one third of the gelcoat is particulate and not resin a mix of just 1.oo % should be fine. High Back Reclining Helm Seat, Cabin and 19 drops per oz @ about 75 degree produce a quicker drying time with better results . Approximately ten drops of MEKP to each 1/2oz. Some customers use Styrene for thinning but the manufacturer warns it can affect the gelcoat colors although this is the most cost-effective option and doesnt have the added wax. . 8 drops 16 drops 16 drops Add the MEKP to the Gelcoat before thinning. Measurements need to be exact so you can be confident the gelcoat is mixed properly before applying it to the surface. Gelcoat Putty Repair Spider Cracks And Fill Gouges! Systems, Lowrance Hook2-4 GPS Can u paint over gelcoat? 625 CC per ounce of gelcoat. Grills, Boat Drink cc = cubic centimeter. If the surface is painted then the paint should be removed before the gelcoat is applied. & Dock, Anchor Chains & We encourage the use of Acetone, because it does not leave residue and evaporates easily. Below you will find a detailed gel coat preparation guide on how to apply gelcoat to your boat, RV, or other surfaces. per Volume). Catalyze gel coat with #69 MEKP at 1.5%. Measure catalyst accurately. Once the coating (gelcoat) has cured, it should be block sanded using 250 wet grit paper to remove all brush marks and high spots. Add 2% MEKP catalyst, by volume: 14-16 drops per ounce, or 2 teaspoons per pint. More if temps <60> 80 or 90. Thanks in advance for your help. Description. Accessories, Electronic Navigation 0000018032 00000 n Required fields are marked *, Please note, comments must be approved before they are published. of Gelcoat w/o Wax = 2-4 oz . Gelcoat requires Methyl Ethyl Ketone Peroxide or MEKP to enable the process of hardening. Read all warnings on product labels and only use additives recommended as described per each product. *ThisItemShips From Florida ;Click to See Estimated Transit Times. Poly products need to be sealed from air to fully cure. Guide, Boat 0000030992 00000 n 0000023354 00000 n Deals, Dealer We recommend 1.5% 2.0 % by volume. Battery Charger, Marine Audio & They are flexible enough to make pouring easy. Deals, Electronics Webbing Solution is a clear liquid added to gel coat to obtain spatter or cobweb effects. t,efR*o*3nsq5#eRY^_~Y-j8oC/vFTvH*S When mixing MEKP with resin, take care as a violent mixing action can splash it out of the mixing container. Oz = fluid ounce . Gel time at 1.8% MEKP is 10-17 minutes. MEKP is a clear hardener/catalyst for the room temperature cure of unsaturated polyester and vinyl ester resins. Also I understand, after an area has been repaired that it should be covered with clingwrap or a material such as a plastic bag in order fo gel coat to cure properly. I don't know if age effects it or not. How Many Drops Of Mekp Is 1 Oz Of Gelcoat 625 CC per ounce of gelcoat. Generally, mix one-pint batches. . = 1.17 polyester resin= 1.09 gelcoat = 1.3, Equivalent The Volumetric Calculators above are GREAT tools. How do you know how many ml's per drops you are getting? 0000022629 00000 n All the essential pizza ingredients the crust, sauce, and cheese contain a lot of salt. Dollies, SportsStuff Great Big The ratio is on the hardener container. Choose a shady location or an overcast day.