The cabin top is 9 feet wide by 10 feet long (910=90 square feet). Honda 5hp Outboard, Boat 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. & Sonar, Trolling Use a gelcoat spray gun such as ES Manufacturing Gelcoat Spray Gun G830, ES-G100 Spray Gun, or equivalent. 0000003502 00000 n Gel time at 1.8% MEKP is 10-17 minutes. Instruments, VHF Radios & HOW MUCH RESIN & GLASS DO I NEED? - LBI Fiberglass The higher the temperature, the less hardener you need. If you have Professional Grade Exterior Gelcoat you may either brush/roll or spray. Wells, Toilet & Waste Spraying gel coat is recommended for more accurate and consistent coverage. Its best to do a 4-foot by 4-foot area at a time. Video, GPS Chartplotters & Here is an Old School MEKP Chart for Download if you prefer. Anything below 60 degrees, and your gelcoat will not cure, but as you get warmer and warmer, your working time will decrease rapidly. Software, Digital TIP: If using a wooden mixing stick, place the stick in the resin before adding catalyst so the wood doesn't absorb the catalyst. Thanks, #3. How much does a gallon of polyester resin weight? 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. When mixing MEKP with resin, take care as a violent mixing action can splash it out of the mixing container. Gelcoat Catalyst Requirements. I don't know if age effects it or not. PDF MEKP Ratio Chart Polyester Resin - Silpak Darker color gelcoats will also require more MEKp then the recommended amounts above. When MEKP is mixed with polyester or vinylester resin, the resulting chemical reaction causes heat to build up and cure or harden the resin. 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. Does gelcoat need wax? 0000007919 00000 n Gelcoat should not be used when temperature conditions are below 60F, as curing may be adversely affected. 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. However, I can NOT guarantee you will achieve the same results as I would. xref Resin that cures still in the mixing pot is unusable. Mix thoroughly and methodically into the resin otherwise some portions of resin may not be catalysed and thus not cure properly. You should also feather the surrounding area of the gel coat repair with 220/330. Axles, Boat Trailer Tie . Required fields are marked *, Please note, comments must be approved before they are published. 27. Detectors, Binoculars & We suggest a thickness of 18-20 mils to properly cure. Hardware, Boat With the new ratio of .6 CC per oz of gelcoat everything took perfect. Ropes, Boat Deals, Boat Seats When rolling on gelcoat be sure to use a 1/8 or 14 solvent-resistant nap. Towers, Tow Ropes & 0000001832 00000 n Gel coat is typically the first layer of a part to be applied. The ratio is dependant on air temperature, resin thickness, temperature of resin and mold. d23 ?P90. Its a very small number. Less MEKP gives a slower cure, more gives a faster cure. Thanks for the help. Always consider the width of the cloth plus an overlap allowance at the seams. 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. cc = cubic centimeter. Gel coat is a polyester resin and uses MEKP as the catalyst. See this article for more information: How to Apply Gelcoat by Brush and Roller. Marble, Engine Deals, Camping & RV Supreme Mariner Joined Oct 18, 2007 Messages 12,932 11 0 obj<> endobj Use these calculators and mix very small batches until you achieve the desired result. RESIN, Quarts. This item is flammable and can only be shipped by ground. PDF GELCOAT REPAIR GUIDELINE NCINSTGCGD-v 2 - Multi-Tech Products **NOTE** Duct tape is recommended over masking tape because it provides better protection. When adding it to gelcoat, you must also add the MEKP (methyl ethyl ketone peroxide) hardener. For 50 g gel coat add 1 g catalyst (approximately 20 drops) For 100 g gel coat add 2 g catalyst (approximately 40 drops) Can you apply second coat of gelcoat? Be sure to have a good strategy when applying your gelcoat. Generally speaking, for Polyester Resins, the mixing ratio is 2% i.e. Mix for a minimum of three minutes and make sure to scrape down the sides and the bottom of your container to get everything in. Location. 2. 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. Add the MEKP . Accessories, Big Jon 0 trailer Free shipping for many products! Marine Coat One Iso/Npg Marine Gel Coat White with Wax with MEKP If using a wood mixing stick, place the stick in resin before adding catalyst so the wood doesnt absorb catalyst. 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. If you brush on the gel coat, make sure to use a solvent resistant brush. *ThisItemShips From Florida ;Click to See Estimated Transit Times. AN Why is my resin not hardening? PDF Bondo fiberglass resin hardener ratio chart Measurements need to be exact so you can be confident the gelcoat is mixed properly before applying it to the surface. At 77F 1.8% MEKP will provide a gel time of 10-17 minutes. Beside this,how many drops of hardener do i need for gelcoat? Fibreglass Catalyst Requirements - Nivitex Chart for poly resin cure times vs. temp vs. MEKP? Battery Charger, Marine Audio & Copyright 2019 IBOATS. Adding cured meats such as pepperoni or sausage adds even more sodium. Method of Application: Next, determine if you are going to brush, roll or spray your gelcoat so you can prepare the gelcoat for application. The heavier fast-cut grits (40/80/100) are used to feather sand and ground out a routed area prior to filling. It needs to be handled with care. (1 quart) 1/2 ounce to 1 ounce: 1 gallon: 2 ounces to 4 ounces: Important Note. This morning not even tacky and hard enough to sand already! Marine Battery Chargers, Shop 0000000836 00000 n then sanding the gel coat down starting with 150, 220, 400 wet and 600 wet. ADD TO CART. That is what target for. Boat Gel Coat - Spectrum Color, Pumps and . Polyester resin is not nearly as forgiving as epoxy so you really gotta be on the money with the mix. How to Mix Polyester Resin | eHow Locks, Boat Deck Correct application of gelcoat is critical to get the optimum performance from it. 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. Mix the polyester resin with a catalyst named methyl ethyl ketone peroxide (MEKP) to begin curing. Gel Coat requires the addition of fiberglass resin hardener or catalyst (MEKP) at 1.8% by volume (77F) (approximately 12 drops per ounce), Measure catalyst accurately. More features, tools? Newbury, MA. Biminis, View To catalyze TotalBoat Polyester Laminating Resin, at 77F, add 7-8 drops of MEKP catalyst per one fluid ounce of resin. You can measure the fluid ounce (s) of resin in a clean mixing cup. 2 Oz is recommended for 1 Gallon of Gel Coat or Resin. All Gel Coats from Bottom Paint Store come with MEKP with each gelcoat purchase. Spraying gel coat is recommended for more accurate and consistent coverage. I do suggest you start small. Begin wet sanding with the finest grit that will remove orange peel in the re-sprayed area. Drink Holders. Sanding between coats is not necessary unless a surfacing agent has been added to your gel coat. Communication, Auto Pilot 30 seconds, ensuring to scrape bottom and edges of the mixing container. Parts, Sacrificial Anodes & (2% of MEKP for colder temperatures.) 0000006580 00000 n Galley, Covers and If you add too much then you risk it burning. Find many great new & used options and get the best deals for 3 PK REFRESH LIQUIGEL Lubricant Eye Gel 0.50 oz NIB EXP. Dust and dirt particles are your enemy here, so make sure you clean the surface thoroughly.Determine whether you need one or two gelcoat coats. Deals, Trailering For a better experience, please enable JavaScript in your browser before proceeding. Outdoor Hub, LLC (d/b/a Carbon Media Group), 30800 Telegraph Rd, Suite 1921, Bingham Farms, MI 48025 USA. Gel coat will not fully cure without adding a surfacing agent or over spraying with PVA. Start by sanding the surface with 150 grit or sandpaper. Jacks, Boat Trailer Brakes & GEL COAT REPAIR INSTRUCTIONS. 0000018269 00000 n The normal ration of resin to catalyst is just over 1% but should not go over 2.5%. Keep in mind that it is best to mix in small quantities. 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. trailer 0000000872 00000 n Easy! usually a material called surfacing agent (wax/styrene) or P V A. TotalBoat Gelcoat for Marine RV Pools and More - Jamestown Distributors The final thickness should be 16-20 mils minimum or the gelcoat may not fully cure. This is what I use- 60 to 65 degrees 3 %, 65 to 70 2.5%, 70 to 75 2%, 75 to 80 1.5%. How long do you wait between coats of gelcoat? Thank you! 0000030571 00000 n Fenders, Boat Trailer The cc and oz values in the chart have been converted from weights of MEKP to volumes of MEKP. The Fora platform includes forum software by XenForo. Following this, it should be wet sanded with 320, 400, and 600 wet grit paper, buffed, polished and waxed. Mixing thoroughly is just as important. Systems, Lowrance Hook2-4 GPS 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. How to mix Fiberglass Resin & Clean Tools. Covers, Boat Wiring & Upgrade the Premium MEKP Catalyst Calculator by WEIGHT EXCLUSIVELY offered by Vernese Customs. What would make this better and more useful? Adding more of less of the catalyst agent will speed up or slow down the curing time for the resin. Gain access to PREMIUM Calculators by WEIGHT when you subscribe today. Anchor Box Anchors, Fishing Rod & Reel Polyester resin is not nearly as forgiving as epoxy so you really gotta be on the money with the mix. Man I hope its working. Add 14 drops of liquid hardener per 1 oz. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. TIP: You can also use these to calculate the correct amount of Wax Additives or other surfacing agents like Patch-Aid (3-4%) or as recommended. List Name . Catalyzing Gelcoat with MEKP: All gelcoat MUST be catalyzed with MEKP to cure. You will have between 5 and 10 minutes (longer in cold weather) to apply the gel to the mould. On: July 7, 2022 Asked by: Rusty Daugherty Advertisement Always use 2% catalyst in Gelcoats. You should catalyze your material so that it cures as quickly as possible within your working time. Legal Disclaimer: User assumes all liability. Be even and consistent in your gun movement, overlapping each previous pass slightly and not hesitating on the ends. Grills, Boat Drink Guide, Boat Winches, Boat Motor Supports & 13-15 cc per quart. It is also needed with all gel coats. As a general rule: The catalyst level (MEKP) should not exceed 3.0% or fall below 1.2 for proper cure. The Ideal range is 1.8% @ 77F (approximately 12 drops per ounce of gelcoat.) Accessories, Marine DC Power Plugs The MEKP Calculators by WEIGHT are Dead-On when it comes to precision and Superior to any Catalyst Chart. Generally, mix one-pint batches. Using the drop method, 4 drops are used. Clean the fiberglass surface with ajax or comet and water. 7. Gelcoat should not be applied over paint, wood, metal, or concrete. Systems, Marine Plumbing UV inhibitor is added to increase weathering stability. Thinning Sea Hawk Gel Coat Gel coat may be thinned up to 10% with Sea Hawk 7125 Gel Coat Thinner, or 25-33% Sea Hawk Patch Aid 8185. & Rings, Prop Nut Kits & per Volume). 0000001899 00000 n Otherwise, there will be only one coat. Gel coat/Catalyst ratio for small batch | WestCoastPaddler Forums Fishing Lures, Fishing Rod Holders & 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. Resin starts to cure but does not go all the way completely. I always go way over the amount needed. endstream endobj 140 0 obj <>/Size 114/Type/XRef>>stream PDF GELCOAT AND RESINS CATALYST RATIOS NCINSTGCCAT-v.2 - Multi-Tech Products & Salto. The Right Fit, Shop By Epoxies are much simpler to get a good ratio by weight. Combos, Fishing Tools & Tables, Minn Kota Steel Blue is a dye youre going to wipe on or you can use the blue dye spray. 3. use an eye dropper to catalyze small quantities 20 drops of mekp per. Conversely, you will need moreMEKp for cooler temperatures. 0000019960 00000 n X`:.geS>Xpiq~\\|=)Dv0'O-GFT# 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. 0000006234 00000 n Please refer the to Catalyzation chart on the Gelcoat page or on the label. I purchased the gel coat which is matched to my color hull from Ranger boats and purchased MEK ( catalyst ) from O'Riley. We recommend 1.5% 2.0 % by volume. MEKP Hardener 1 oz. I genuinely do care about ALL my customers and hope everyone of you achieve the absolute best results possible. Why do I need to add MEKP to polyester resin or gelcoat? How much do I as this one is). Holders, Cabin Accessories & Covers, Boat Cover GPS Chartplotter and Fish Finder Combo, Find Telescopes, Covers and 1 Oz is recommended for 1 Quart of Gel Coat or Resin. Fillers are added to help control peak exotherm, shrinkage, and cure rate. Kits, Seadog Stainless Steel Cup Ratio The ratio range for catalyst to resin is 1 to 2 percent hardener to the total volume of resin to be used. How many Oz is a slice of pizza? TotalBoat Polyester Laminating Resin requires the adding of MEKP catalyst at the ratio of 7-8 drops of MEKP per one ounce of resin at 77F (1. Description. Caulking, Marine Engine If you want to roll on a gelcoat, be sure to use a 1/8 or 14 solvent-resistant nap. Depending on the orifice size of the bottle your using 10 drops could equal .5cc, 1cc, 1.5cc.. using a $0.89 syringe is cheap insurance to me. We all have a phone with a calculator so that makes this process even easier. Clean repair area and all tools with acetone prior to application. 50 Graduated Paper Cups Perfect for mixing small batches resin, paint, stain, epoxy from 1 to 3 ounces. 1 TBS = 1/2 oz. Riptide Terrova 80 Trolling Motor w/i-Pilot & Bluetooth, Inflatable Need help mixing gel coat | Boating Forum - iboats Boating Forums Bilge Pumps, Shop HWnF}WK This is a simple, easy way to see the thickness of your gelcoat. Compound and polish with Aquabuff 2000 then happy a wax such as Collinite 925 UV for protection. Do you sell MEKP? It will take a minimum of two coats of gelcoat if you are changing colors. 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. 0000003417 00000 n 0000023127 00000 n 0000030800 00000 n Sign up for newsletter: You've just added this product to the cart: FIRST QUALITY FIBERGLASS MATERIALS AT A PRICE YOU CAN AFFORD! Add 2% MEKP catalyst, by volume: 14-16 drops per ounce, or 2 teaspoons per pint. If the surface is painted then the paint should be removed before the gelcoat is applied. Cable, Marine Batteries & Gelcoat and Topcoat - Guide, Instructions, Comparison Use a gelcoat thickness gauge to ensure proper thickness is achieved. Screws, Boat Handles, Pulls, Catalyst Concentration & Equivalent Measure Chart - Fibreglass The correct ratio will appear below.