example6oz resin times 2%= .12 times 30 = 3.6 cc of MEKP8oz resin times 1%= .08 times 30 = 2.4cc of MEKP6oz gelcoat times 2%= .12 times 30 = 3.6 times 2 = 7.2cc of MEKPRemember to use my discount code at www.totalboat.com code: TBholdfastsubscribe to the channel, and don't forget out patron https://www.patreon.com/HoldfastmarineMEKP dispenserhttps://fiberglasssupplydepot.com/MEK-DISPENCING-BOTTLE.htmlPolyester resinhttps://www.totalboat.com/product/polyester-laminating-resingelcoathttps://www.totalboat.com/product/gelcoatfairing compoundhttps://www.totalboat.com/product/polyester-fairing-compoundMEKPhttps://shop.hamiltonmarine.com/products/fiberglass-hardener-mekp-organc-peroxide-clear-gal-15046.html#holdfastmarine #totalboat #fiberglasssupplydepot They are flexible enough to make pouring easy. t,efR*o*3nsq5#eRY^_~Y-j8oC/vFTvH*S 0 Gelcoat Touch up | Sailboat Owners Forums However, if you have opacity problems two coats may be necessary with a light sanding between coats. The percentages in the chart: 1% thru 2%, are percentages of resin or gelcoat by weight. This MEKP is the catalyst/hardening agent for polyester resins and polyester gelcoats. You are using an out of date browser. Boats, Propeller Parts & of wax; and 1 gal. As soon as you are done spraying, clean your sprayer fully with acetone. Instantly, you will gain predictable results. If not, where can I purchase? Marble, Engine Tackle Boxes, Fishing Bait & While it might eventually cure as long as it doesn't freeze, gel coat doesn't like temperatures below 10*C. Lay on the gel coat in a heavy thickness (about 10 mils) using horizontal strokes, and working from top to bottom. of Fiberglass Resin (or for can of Fiberglass Resin, use tube of liquid hardener). Hardware, Boat Seats by Quantity. Only catalyze slightly more than needed. *ThisItemShips From Florida ;Click to See Estimated Transit Times. You should find a warmer spot to move your piece such as room or working office. What would make this better and more useful? See this article for more information: How to Apply Gelcoat by Brush and Roller. 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. 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. Since manufacturer specs change often due to formula updates be sure to follow the most recent recommendations from the technical data sheets. Webbing Solution is a clear liquid added to gel coat to obtain spatter or cobweb effects. Avoid re-brushing as this could remove the waxy surface additive. 1 Oz is recommended for 1 Quart of Gel Coat or Resin. MEKP %. Sparky568 Junior Member. Clean repair area and all tools with acetone prior to application. (16 oz. per Volume). Protection, Ladders, Steps, & Ventilation, Interior & Cabin If using a wood mixing stick, place the stick in resin before adding catalyst so the wood doesnt absorb catalyst. Gel Coat Additives: You should also determine which additives you will use with your gelcoat application. Remember to always lap wet. For spraying gelcoat our FGCI brand does not recommend thinning. Once your repair is covered, feather a flow or sanding coat on the masked-off area making layered passes to avoid a buildup of gel coat in any one area. The minimum recommendation from Dow is 1% MEKP to resin by weight, with a maximum of 2.5%. This is eye needs cataract surgery; thought it would help - actually . Gelcoat should not be used when temperature conditions are below 60F, as curing may be adversely affected. The correct ratio will appear below. Kits, Boat Trailer Use milliliters its easier to do the ratio math. Manufacturer, Boat Tables & How do you know how many ml's per drops you are getting? as this one is). To catalyze TotalBoat Polyester Laminating Resin, at 77F, add 7-8 drops of MEKP catalyst per one fluid ounce of resin. (#69-A) unit can be shipped via standard ground service without hazard charges within the 48 contiguous United States. Do you need to add catalyst to resin? If you want CONSISTENT RESULTS every time you mix, YOU NEED to MEASURE BY WEIGHT NOT VOLUME!! 0000003099 00000 n Accessories, Electronic Navigation .75 oz X 38 Wide Fiberglass Cloth (Style #106), .75 oz X 38 Wide Fiberglass Cloth (Style #106) per yard, 1.5 oz x 50 Wide Fiberglass Cloth (Style #108), Customer Project Spotlight: 1956 Dundee Boat Refinish, Good, Better, BestResins For Your Project, Singing in the Rain- ProGlas 1000 Epoxy Resin Art Tutorial. The warmer the temperature the less MEKp you would to activate the gelcoat/resin. 0000013646 00000 n The resin's reaction starts with the addition of MEKP at 0.5% to 1.5 % (2 % for thin laminates). Get a proper measuring cup and syringe and use cc's or ml's for both. 20ml for every 1kg of Resin in working conditions at room temperature. Dock, Cabin and Large quantities will exotherm and kick off very fast, leaving you with a smoldering mess in your cup. Platforms, Slide Do the math, and that yields 0.96cc per 100g of resin for 1% and 2.4cc for 2.5%. Duct tape off adjacent gunwale molding, and deck fittings you are unable to remove. Starters, Marine Solar Power Adding cured meats such as pepperoni or sausage adds even more sodium. Gelcoat Catalyst Requirements. Less MEKP gives a slower cure, more gives a faster cure. Conversely, you will need moreMEKp for cooler temperatures. If you decide to Double or Triple the Volume to do a larger project or portion, the Calculator does the math for you! 0000009357 00000 n Using the drop method, 4 drops are used. You can use either a heavy-duty, reusable plastic cup or disposable paper cup for spraying gelcoat. The specific gravity of MEKP is 1.045. Ounces (Volume of Catalysts to be Used with Polyester Resins MEKP - Number of oz. Outboards, Shop 0000003380 00000 n 0000023817 00000 n Gel coat is a polyester resin and uses MEKP as the catalyst. Generally, one heavy coat is sufficient. Put the bottle in the sun or in front ofa lamp to reliquify. This is what I use- 60 to 65 degrees 3 %, 65 to 70 2.5%, 70 to 75 2%, 75 to 80 1.5%. 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. Enter the amount of Resin in quarts then adjust % of MEKP using the slider. To cure properly and completely, gelcoat needs to be devoid of oxygen. How to Apply Gelcoat | Easy Gelcoat Application - Bottom Paint Store Resin starts to cure but does not go all the way completely. 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. When mixing MEKP with resin, take care as a violent mixing action can splash it out of the mixing container. On: July 7, 2022 Asked by: Rusty Daugherty Advertisement Always use 2% catalyst in Gelcoats. Prepping the Surface: Remove rails, cleats, louvers, snaps, striping tape, etc. Transom This is a simple, easy way to see the thickness of your gelcoat. DO NOT WORK IN DIRECT SUNLIGHT -Choose a shady location or an overcast day. Otherwise, one coat will do. gelcoat..very small quantity mixing ratios.. | Classic Parker Boat Forum 2Oz is recommended for 1Gallon of Gel Coat or Resin. 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. Gel coat will not fully cure without adding a surfacing agent or over spraying with PVA. Accessories, Boat Lift Canopy You should mix about 4 oz and that will be 1.375 cc/ml. FIB-603 -- 2 oz (for 1 gallon of resin) FIB-604 -- 240cc for 5 Gallons of resin. Approximately eight drops of MEKP to each 1/2oz. 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. The Volumetric Calculators above are GREAT tools. Part # PBBR-.5 ( oz dropper) Mixing cup will give exact measurements for larger volumes in CC and ounce increments. When working on the deck or cabin, tarp off the adjacent areas. . Mixing out of the above range will result in a weaker cured resin. The MEKP Calculators by WEIGHT are Dead-On when it comes to precision and Superior to any Catalyst Chart. Hardware, Boat Seat How much does a gallon of polyester resin weight? The secret to a good finish is to apply the gelcoat properly. How to Gelcoat Fiberglass: 12 Steps (with Pictures) - wikiHow Grills, Boat Drink Guide, Boat Methyl Ethyl Ketone Peroxide (MEKP) - Fiberglass Warehouse The non-wax gelcoat will remain sticky untill the wax is added. MEKP Hardener gallon (#69-D) and case (#69-E) units are considered hazardous (flammable) and will be subject to a hazard charge if shipped by standard ground. When MEKP is mixed with polyester or vinylester resin, the resulting chemical reaction causes heat to build up and cure or harden the resin. We suggest a thickness of 18-20 mils to properly cure. Battery Charger, Marine Audio & The reason to use a non-wax is for putting on multiple coats without having to sand in between coats. The Ideal range is 1.8% @ 77F (approximately 12 drops per ounce of gelcoat.) Mix thoroughly for at least one minute and apply immediately after. 11 0 obj<> endobj 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. Correct application of gelcoat is critical to get the optimum performance from it. Parts, Rule 1500 GPH Automatic It is also needed with all gel coats. %PDF-1.4 % Polyester resin is not nearly as forgiving as epoxy so you really gotta be on the money with the mix. Measures Chart (Example - 1 Gallon = 231 Cubic Inches and The car polishers wont work if theyre spinning too slowly, so you want to check the speed of the spin. Its a very small number. Get a proper measuring cup and syringe and use cc's or ml's for both. Use a gelcoat thickness gauge to ensure proper thickness is achieved.