More features, tools? Amount of MEKP in Ounces. Now, once again, I know that we have been using 0.75% for our recommended minimum, and that has been successful all these years. & Sonar, Trolling Sealant, & 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. 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. Deals, Electronics Ditch the oz's and drop crap. TIP: If using a wooden mixing stick, place the stick in the resin before adding catalyst so the wood doesn't absorb the catalyst. This is about polyester gel with MEKP hardener. Keep in mind that you have a limited time to apply what you have mixed (usually between 5-15 minutes). Pot life at 75F is approximately ten minutes. 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. Choose a shady location or an overcast day. If you decide to Double or Triple the Volume to do a larger project or portion, the Calculator does the math for you! <<2369ebe0f6fbc740aa2d803257e02535>]>> Trailer Winches, Shop The total area to be glassed is 90 square feet. Caulking, Marine Engine Generally, mix one-pint batches. Deals, Dealer The gelcoat set up what was left in the mixing tub before I threw it out. You have a work time of approximately 15 minutes. of Gelcoat w/o Wax = 2-4 oz . X`:.geS>Xpiq~\\|=)Dv0'O-GFT# 0000009357 00000 n Large quantities will exotherm and kick off very fast, leaving you with a smoldering mess in your cup. Refer to the catalyst chart located on the product page for the gelcoat you are using or follow the label guidelines. Remove seals from the edges of parts or fittings when doing a repair around that part or fitting. 1 TBS = 1/2 oz. Note: All gel coats and resins from the Bottom Paint Store include MEKp with the applicable size of gelcoat/resin. 0000002941 00000 n (108 in . As a general rule: The catalyst level (MEKP) should not exceed 3.0% or fall below 1.2 for proper cure. xref 0000001279 00000 n Ft. @ 10 Mils), Catalyst Concentration by CC (Volume of Catalysts to be Used with Polyester Thank you! AND have fun!! Shelters, Boat What is brushable gelcoat? Towers, Tow Ropes & No catalysts are needed. Use 3M Abrasives for best results. 0000004021 00000 n Here is an Old School MEKP Chart for Download if you prefer. The color wet is the color when dry. (1 quart) 1/2 ounce to 1 ounce: 1 gallon: 2 ounces to 4 ounces: Important Note. When MEKP is mixed with polyester or vinylester resin, the resulting chemical reaction causes heat to build up and cure or harden the resin. Gelcoat needs to be applied evenly. 0000023354 00000 n Conversely, you will need moreMEKp for cooler temperatures. If you brush on the gel coat, make sure to use a solvent-resistant brush. See this article for more information: How to Apply Gelcoat by Brush and Roller. Please follow the instructions located on the products page or the label. The two componants when mixed will react with each other to crosslink and polymerise into a solid plastic. Lighting, Marine Teak 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. If you have Professional Grade Exterior Gelcoat you may either brush/roll or spray. Biminis, Paint and 0000015094 00000 n 0000003502 00000 n hry/ %qSB>JdM|}gvei8=sY<9Y'W`g09tkJLNf B3!^Oil d6m|uM} p{ql+s,S'. 0000019960 00000 n Protection, Ladders, Steps, & Ski, Wakeboard JavaScript is disabled. A forum community dedicated to Small Skiff owners and enthusiasts. Resin that cures still in the mixing pot is unusable. Grande Mastere Dreade Snag's spellchecker 20,728 5,208 3026'36.2"N 8832'13.8"W The thickness of the matchbook cover is approximately 18 mils. Below you will find a detailed gel coat preparation guide on how to apply gelcoat to your boat, RV, or other surfaces. Accessories, Boat Lift Canopy of Gelcoat w/o Wax = 1/4 oz. Category, View 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. Savers, Boat Trailer Guides & The application of gelcoat is pretty straightforward when you follow this guide. 0000001255 00000 n Boat, Sell A Our technicians suggest the use of Dyekum Steel Blue Dye to be really thorough. At 77F 1.8% MEKP will provide a gel time of 10-17 minutes. Otherwise, one coat will do. 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. Under- or over-catalyzed gel coat will cure slower and look faded or chalky. 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. 1 Oz is recommended for 1 Quart of Gel Coat or Resin. Each of these coats of gelcoat may involve several passes. Do the math, and that yields 0.96cc per 100g of resin for 1% and 2.4cc for 2.5%. Holders, Cabin Accessories & of Catalysts to be Used with Polyester Resins MEKP - Number of oz. If you want CONSISTENT RESULTS every time you mix, YOU NEED to MEASURE BY WEIGHT NOT VOLUME!! ), or add 1oz per quart/ 4 oz per gallon of wax additive sanding aid. Pot life (amount of time for application of the product) shortens dramatically as you mix larger batch sizes. %%EOF We sell. 0000010798 00000 n It is also needed with all gel coats. Mix thoroughly to ensure that all gel coat is properly catalyzed. Applying Gelcoat by Brush or Roller: Choose a good pure (natural) resin-resistantbristle brush with tapered ends. Use milliliters its easier to do the ratio math. Accessories, Marine DC Power Plugs How do you know how many ml's per drops you are getting? Below are some charts to help you figure out how much MEKP will be needed for the project. This will avoid unnecessary sanding scratches. of Fiberglass Resin (or for can of Fiberglass Resin, use tube of liquid hardener). Stir well. 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. Get a proper measuring cup and syringe and use cc's or ml's for both. 0000002243 00000 n This further assures that no uncatalyzed material is clinging to the sides of the pot. Our 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. Webbing Solution is a clear liquid added to gel coat to obtain spatter or cobweb effects. 13 0 obj<>stream Hardware, Boat Seats by Plumbing, Anchor Avoid re-brushing as this could remove the waxy surface additive. The amount of catalyst may be adjusted in small, incremental amounts, either upward or downward, to account for temperature differences (more for cooler temperatures, and less for . Practice and prepare!! We suggest a thickness of 18-20 mils to properly cure. Use a gelcoat spray gun such as ES Manufacturing Gelcoat Spray Gun G830, ES-G100 Spray Gun, or equivalent. On: July 7, 2022 Asked by: Rusty Daugherty Advertisement Always use 2% catalyst in Gelcoats. Gel coats are often the exterior coating for composites parts, providing both the color and texture of the part. Cable, Marine Batteries & This item is flammable and can only be shipped by ground. Please refer the to Catalyzation chart on the Gelcoat page or on the label. . 100 ml at 1.5% is 1.5ml MEPK etc. 1 ML = 1 CC; 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. Watch on. They are flexible enough to make pouring easy. Software, Digital The thickness of the matchbook cover is approximately 18 mil. xb```a`` Flow -coat on the other hand will have wax added, I suspect this might be what you have, (Gel-coat = no wax. I want to say poly resin needs 10 drops of MEKP per 1 oz. WEIGHT The exact weight measurement for these ratios is slightly different from the volume ratio due to resin and hardener density. Description. . 0000002105 00000 n Be sure not to use foam rollers because they tend to leave the bubbles. I always go way over the amount needed. 1.25. 625 CC per ounce of gelcoat. Tops, Other %PDF-1.4 % The standard ratio is 1 oz. You will have between 5 and 10 minutes (longer in cold weather) to apply the gel to the mould. Polyester resin is not nearly as forgiving as epoxy so you really gotta be on the money with the mix. At this point, the repair is ready to prep and spray/brush with gelcoat. GPS Chartplotter and Fish Finder Combo, Find Using the drop method, 4 drops are used. The MEKP Calculators by WEIGHT are Dead-On when it comes to precision and Superior to any Catalyst Chart. Do not work in direct sunlight. I would forget the drops and using ounces. Easy! Part # PBBR-.5 ( oz dropper) Mixing cup will give exact measurements for larger volumes in CC and ounce increments. Mix in the MEKP at 1-1.5% and see if it works ok on a test panel. Mixing out of the above range will result in a weaker cured resin. Handles, Life Jackets & More if temps <60> 80 or 90. Gelcoat will not fully cure without adding a surfacing agent or wax additive sanding aid. Man I hope its working. This is eye needs cataract surgery; thought it would help - actually . 1 Oz is recommended for 1 Quart of Gel Coat or Resin. Wells, Toilet & Waste Initially spray a cover coat as smooth and evenly as you can to cover your repair. When a production boat is made in a female mold, the gel coat goes in first, directly against the waxed and mold release coated mold. of wax; and 1 gal. Enter the amount of Resin in quarts then adjust % of MEKP using the slider. I believe the 12:1 was written for 72 degree F days. Hardware, Boat Trailer Racks, Fish Finders, Sounders Quantity of Wax Additive Required: 1 ounce: 20 drops: 16 oz. 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. startxref 0000007919 00000 n This is about 1% which is tuned for 80 degrees or higher. %%EOF Galley, Barbeque List Name. Then use a rubbing compound to remove the rest of the scratches. Fasteners, Boat Windshield Or UPGRADE! Description. Once the coating (gelcoat) has cured, it should be block sanded using 250 wet grit paper to remove all brush marks and high spots. Okay, so how is this MEKP Catalyst Chart or these handy Calculators useful? Polyester resin is not nearly as forgiving as epoxy so you really gotta be on the money with the mix. Gelcoat should not be used when temperature conditions are below 60F, as curing may be adversely affected. 0000012247 00000 n %PDF-1.4 % Communication, Auto Pilot For spraying gelcoat our FGCI brand does not recommend thinning. Product is flammable, use caution! FIB-603 -- 2 oz (for 1 gallon of resin) FIB-604 -- 240cc for 5 Gallons of resin. 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. Biminis, View 2 Oz is recommended for 1 Gallon of Gel Coat or Resin. 7-Eleven Large Pepperoni Pizza. Sparky568 Junior Member. The ratio is dependant on air temperature, resin thickness, temperature of resin and mold. Otherwise, there will be only one coat. 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 The cabin top is 9 feet wide by 10 feet long (910=90 square feet). Add the MEKP . Check the temperature of the Gelcoat stock and insure that it is not below 70F. 30 drops is approximately equal to one cc. The higher the temperature, the less hardener you need. . 0000013646 00000 n How long do you wait between coats of gelcoat? Used as the hardener (activator) in Gel Coats and Resins. For a better experience, please enable JavaScript in your browser before proceeding. Since manufacturer specs change often due to formula updates be sure to follow the most recent recommendations from the technical data sheets. Keeping good notes will help you build a database of initiator levels for temperatures that you encounter frequently. Begin wet sanding with the finest grit that will remove orange peel in the re-sprayed area. Covers, Boat Wiring & For use as a final coat over fiberglass layups or for repairs, this gelcoat cures to a hard, glossy surface. Intro How to properly measure MEKP for your polyester resin, gelcoat and more Hold Fast Marine -DIY tips and tricks- 4.68K subscribers Subscribe 289 10K views 1 year ago HOLD FAST MARINE Have. = 1.17 polyester resin= 1.09 gelcoat = 1.3, Equivalent 1 ea contains 1 ea . Mike, Your email address will not be published. Holder, Anchor & Dock 0000001926 00000 n This item has a shelf life of approximately 2-3 months. Do you need to add catalyst to resin? Does gelcoat need wax? 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 Tags: MEKP > MEKP for gel coat > gel coat catalyst > gel coat hardener > hardener for gel coat > 132662 > 132661. The correct ratio will appear below. Under or over catalyzation retards curing and causes fading and chalking. Gelcoat needs to be applied evenly. Ropes, Boat Bilge Pumps, Shop The warmer the temperature the less MEKp you would to activate the gelcoat/resin. When sanding areas that have been filled with putty we suggest using 40 or 80 grit sandpaper, depending on how large the repair is. Bottom Paint Store Blog How to Articles. All, Anchor & For example, if you are using a conventional spray gun, you should set the pressure between 30 and 50 psi. 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. Specific gravity MEK peroxide 38 in. Apply the gelcoat using a brush or spray gun. Thoroughly mix paste, pigments, and hardener. If not, where can I purchase? (1) One Gallon Polyester Resin = 9.2 pounds (2) Specific Gravity MEKP = 1.13 (3) Drop from 1 oz. Accessories, PWC Parts & cc = cubic centimeter. You can over-spray with PVA before gel coal reaches its gel stage (5-10 min. Epoxy activators are all proprietary, depending on the product. Resins MEKP - Number of cc per Volume), Catalyst Concentration by MEK, short for MEKP, is the Hardener or catalyst for Polyester Resin and Vinylester Resin Systems including Isothalic and Gelcoat. Going up to 400, then 600, and eventually 800 grit sandpaper. Accessories, Marine Electrical You can use either a heavy-duty, reusable plastic cup or disposable paper cup for spraying gelcoat. Polyester resins and gelcoats require the addition of MEKP (Methyl Ethyl Ketone Peroxide) catalyst to cure in a desired amount of time. How to Apply Gelcoat by Brush and Roller. **NOTE** Duct tape is recommended over masking tape because it provides better protection.

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