Mekp is too hard to measure by drops to me, so I use a syringe and do it by ml instead. Steel Blue is a dye youre going to wipe on or you can use the blue dye spray. (1 pint) 1/4 ounce: 32 oz. If adding pigment do so first and thoroughly stir in mixing well before adding catalyst, be careful not to under or over pigment. Use these calculators and mix very small batches until you achieve the desired result. I want to say poly resin needs 10 drops of MEKP per 1 oz. Towers, Tow Ropes & Epoxies are much simpler to get a good ratio by weight. 100 ml at 1.5% is 1.5ml MEPK etc. We suggest a thickness of 18-20 mils to properly cure. and gelcoat needs twice as much catalyist. Forums, Find How many drops of MEKP is 1 oz of gelcoat? Adding more of less of the catalyst agent will speed up or slow down the curing time for the resin. Under- or over-catalyzed gel coat will cure slower and look faded or chalky. However, neither they nor any Catalyst Chart can provide the exact ratio by WEIGHT. Plumbing, Anchor That is what target for. 0000002105 00000 n
If you decide to Double or Triple the Volume to do a larger project or portion, the Calculator does the math for you! We recommend 1.5% - 2.0 % by volume. This is a simple, easy way to see the thickness of your gelcoat. Why is my resin not hardening? Generally, one heavy coat is sufficient. Do the math, and that yields 0.96cc per 100g of resin for 1% and 2.4cc for 2.5%. Gelcoat should be applied at temperatures of 60F to 80F. hry/ %qSB>JdM|}gvei8=sY<9Y'W`g09tkJLNf B3!^Oil
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Transom If you need more time to work, be sure to sit the can in some cold ice water to cool it down to 60 degrees to allow you a little more working time. Note: All gel coats and resins from the Bottom Paint Store include MEKp with the applicable size of gelcoat/resin. We have all done it in a pinch, but there's a quicker way. We sell. Furniture, Boat Seat Pedestals & Apply gel coat to mold surface. MEK, short for MEKP, is the "Hardener" or catalyst for Polyester Resin and Vinylester Resin Systems including Isothalic and Gelcoat. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. The amount of MEKp that you add to gelcoat and resin will vary with outside weather conditions. Ideal for touching up scratched gelcoat. If youre not sure how thick it is, pick up a mil gauge. Used as the hardener (activator) in Gel Coats and Resins. Tubes, Shop 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. 0000000836 00000 n
Catalyze gel coat with #69 MEKP at 1.5%. I want to say poly resin needs 10 drops of MEKP per 1 oz. 0000003502 00000 n
Seats, Offshore Boat 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. Again I'm not a fan of "drops" because its super subjective. Breakers, Power Packs & Jump Axles, Boat Trailer Tie A good practice is to pour the mixed gel coat from the mixing container into another container used for application. 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. Apply the gelcoat using a brush or spray gun. When rolling on gelcoat be sure to use a 1/8 or 14 solvent-resistant nap. Determine the Existing Surface: First thing you want to do is look at the surface on which you want gelcoat applied. How many drops of Polyener resin are in an ounce of hardener? 0000009357 00000 n
20ml for every 1kg of Resin in working conditions at room temperature. You will have between 5 and 10 minutes (longer in cold weather) to apply the gel to the mould. Accessories, PWC Parts & Start by sanding the surface with 150 grit or sandpaper. This is what I use- 60 to 65 degrees 3 %, 65 to 70 2.5%, 70 to 75 2%, 75 to 80 1.5%. 0000001553 00000 n
Description. Do you sell MEKP? How long do you wait between coats of gelcoat? Deals, Camping & RV Gel time at 1.8% MEKP is 10-17 minutes. This is one of the questions Bottom Paint Store is asked the most.Lets start with explaining that gelcoat is not a paint but a type of resin that is used to provide a protective layer over fiberglass. Tops, Bimini Top Keeping good notes will help you build a database of initiator levels for temperatures that you encounter frequently. per Volume). The ratio range for catalyst to resin is 1 to 2 percent hardener to the total volume of resin to be used. Similarly,how many drops of hardener do i need? 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. Add 2% MEKP catalyst, by volume: 14-16 drops per ounce, or 2 teaspoons per pint. Fenders, Boat Trailer For Dogs & Cats Free Shipping at the best online prices at eBay! Correct application of gelcoat is critical to get the optimum performance from it. 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. The weight of MEKP 925 is 1.125 grams per cc. Location. Click Here. When mixing small batches, catalyze with 12-18 drops hardener per ounce of gelcoat. AN We encourage the use of Acetone, because it does not leave residue and evaporates easily. At 70 degrees, you get 15 minutes, but at 90 degrees, you only get 5 minutes. 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. Trolling Motors, Shop How many Oz is a slice of pizza? 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. 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. Resins MEKP - Number of cc per Volume), Catalyst Concentration by
PINT (16OZ) 1/4 OUNCE In temperatures below 70 degrees, the paraffin can QUART (32OZ)1/2 OUNCEsolidify in the bottle. ACCOUNT, Find trailer
For 50 g gel coat add 1 g catalyst (approximately 20 drops) For 100 g gel coat add 2 g catalyst (approximately 40 drops) Take steps to cover and protect the rest of the boat before starting. Ropes, Boat Under or over catalyzation retards curing and causes fading and chalking. Stir well. Refer to the catalyst chart located on the product page for the gelcoat you are using or follow the label guidelines. Holder, Anchor & Dock & Sonar, Trolling This is about polyester gel with MEKP hardener. Does gelcoat need wax? 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. Ventilation, Interior & Cabin Measurements need to be exact so you can be confident the gelcoat is mixed properly before applying it to the surface. 1.25. 28.4cc Catalyst Amount by CC Catalyst Concentration by CC (Volume of Catalysts to be Used with Polyester X`:.geS>Xpiq~\\|=)Dv0'O-GFT# You may purchase this item if you desire additional hardener. Get a proper measuring cup and syringe and use cc's or ml's for both. 0000022629 00000 n
Less MEKP gives a slower cure, more gives a faster cure. I believe the 12:1 was written for 72 degree F days. MEKP can be added to polyester resin in the range of 1 to 2% by volume or weight. 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. But I believe it to be 12 drops of hardener per ounce of gelcoat. They are flexible enough to make pouring easy. JavaScript is disabled. Battery Charger, Marine Audio & 0000003945 00000 n
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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. Remove seals from the edges of parts or fittings when doing a repair around that part or fitting. More if temps <60> 80 or 90. For a better experience, please enable JavaScript in your browser before proceeding. Instantly, you will gain predictable results. 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. Our technicians suggest the use of Dyekum Steel Blue Dye to be really thorough. Gelcoat without wax is used when you have a different method selected to cure it. Copyright 2019 IBOATS. Pot life at 75F is approximately ten minutes. Deals, Dealer 13 0 obj<>stream
Be sure not to use foam rollers because they tend to leave the bubbles. What is brushable gelcoat? Refer to the catalyst chart located on the product page for the gelcoat you are using or follow the label guidelines. ), or add 1oz per quart/ 4 oz per gallon of wax additive sanding aid. 1 What is Gelcoat? I don't know if age effects it or not. Rails, Marine Tools & Tool Bullet Skimmer, Paint and 0-2.2% MEKP based on the weight of the resin). & Rings, Prop Nut Kits & %PDF-1.4
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Ideal range is 1.8% @ 77F. Man I hope its working. Instruments, VHF Radios & Mix 2-3% of MEKP Hardener into the Gel Coat. When mixing MEKP with resin, take care as a violent mixing action can splash it out of the mixing container. We offer pre-mixed colors of gelcoat, use this color chart as a guide for the available colors that we have. 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 . Prepping the Surface: Remove rails, cleats, louvers, snaps, striping tape, etc. 11 0 obj<>
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Use a gelcoat spray gun such as ES Manufacturing Gelcoat Spray Gun G830, ES-G100 Spray Gun, or equivalent. Acessories, Fishing Outriggers & Zincs, Generator PFDs, Roof Racks, Carriers, You will develop a repeatable and scalable process. 4|#8sReSSq"la;&2%9(HC}cL1eM4%1wEo 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. 30 seconds, ensuring to scrape bottom and edges of the mixing container. 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. 0000030992 00000 n
Thank you! Adding cured meats such as pepperoni or sausage adds even more sodium. Waxes, Boat Cleaning The Volumetric Calculators above are GREAT tools. The thickness of the matchbook cover is approximately 18 mils. . Screws, Boat Handles, Pulls, Varnish, Marine Adhesives, Sign up for newsletter: You've just added this product to the cart: FIRST QUALITY FIBERGLASS MATERIALS AT A PRICE YOU CAN AFFORD! 0000006855 00000 n
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Deals, Paint & Maintenance Systems, Marine Plumbing Generally, mix one-pint batches. The percentages in the chart: 1% thru 2%, are percentages of resin or gelcoat by weight. All Gel Coats from Bottom Paint Store come with MEKP with each gelcoat purchase. Parts, Wash Down Fishing Lures, Fishing Rod Holders & This should be added after all other additives just prior to application. The total area to be glassed is 90 square feet. GEL COAT REPAIR INSTRUCTIONS. Outdoor Hub, LLC (d/b/a Carbon Media Group), 30800 Telegraph Rd, Suite 1921, Bingham Farms, MI 48025 USA. Usually 320 or 400 grit wet paper is sufficient for the initial sanding. Sealant, & How much does a gallon of polyester resin weight? 0000017788 00000 n
. How to Apply Gelcoat by Brush and Roller. For example, if you are using a conventional spray gun, you should set the pressure between 30 and 50 psi. 11 27
Gel Coat Instructions - Marine Gel Coat Repair Product | Marine Products 2007 Beavertail Opsrey - 2017 Suzuki DF60A. If you want to roll on a gelcoat, be sure to use a 1/8 or 14 solvent-resistant nap. 0000030571 00000 n
At 77F 1.8% MEKP will provide a gel time of 10-17 minutes. Boat, Boat Buyers To catalyze TotalBoat Polyester Laminating Resin, at 77F, add 7-8 drops of MEKP catalyst per one fluid ounce of resin. 27. AND have fun!! Below are some charts to help you figure out how much MEKP will be needed for the project. Starters, Marine Solar Power 8 drops 16 drops 16 drops Add the MEKP to the Gelcoat before thinning. Meters, Marine Electrical Panels That's the problem. Unfilled resin can heat up to 300F resulting in cracking. Rafts, Paddle Holders, Cabin Accessories & Gel Coat Additives: You should also determine which additives you will use with your gelcoat application. Approximately ten drops of MEKP to each 1/2oz. Polyester resins and gelcoats require the addition of MEKP (Methyl Ethyl Ketone Peroxide) catalyst to cure in a desired amount of time. Insurance, Boat Most re-sprayed gelcoat will cure in 2-4 hours, although overnight cures are ideal. Find many great new & used options and get the best deals for Veterinary Formula Clinical Care Ear Therapy 4 oz. Part # PBBR-.5 ( oz dropper) Mixing cup will give exact measurements for larger volumes in CC and ounce increments. Marine Battery Chargers, Shop 1 GALLON 2 OUNCES Vinyl, Floating Boat Accessories, Marine DC Power Plugs How Many Drops Of MEKP Is 1 Oz Of Gelcoat? Once the coating (gelcoat) has cured, it should be block sanded using 250 wet grit paper to remove all brush marks and high spots. Resins that have Duratec in their name require a 2% mix ratio (2 2/3 ounces per gal Ditch the oz's and drop crap. How to mix Fiberglass Resin & Clean Tools. What happens if you put too much hardener in resin? Oz = fluid ounce . endstream
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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. 0
This will avoid unnecessary sanding scratches. 0000003263 00000 n
How much hardener should I use? Beside this,how many drops of hardener do i need for gelcoat? Use a gelcoat thickness gauge to ensure proper thickness is achieved. 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. You want to use a buffer that turns 1600-3000 RPM. 0000023354 00000 n
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. 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 Dock, Cabin and There are about 20 drops in a cc/ml, so for 4oz of gelcoat you would mix 27 drops of MEKP. Gelcoat can take as much a 2x the amount of MEKP as resin. 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 Polyester resin is not nearly as forgiving as epoxy so you really gotta be on the money with the mix. of wax; and 1 gal. Be sure to have a good strategy when applying your gelcoat. Deals, Pumps & Plumbing Applying Gelcoat by Brush or Roller: Choose a good pure (natural) resin-resistantbristle brush with tapered ends. Distribution, ProMariner ProNautic It is typically used between 1.25% to 1.75% (1 2/3 ounce to 2 1/3 ounces per gallon). Handles, Life Jackets & 0000000016 00000 n
For the Water Clear Casting Polyester Resin, this drops to 1.5% or 15ml for every 1kg. Accessories, Boat Do not use more than 1 oz tint per quart. 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. Required fields are marked *, Please note, comments must be approved before they are published. 114 0 obj
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Patch booster is used with a 5:1 ratio or about 20% by volume. The standard ratio is 1 oz. 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. Marble, Engine **NOTE** Duct tape is recommended over masking tape because it provides better protection. xb```a`` 0
Lay on the gel coat in a heavy thickness (about 10 mils) using horizontal strokes, and working from top to bottom. 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. In this video I show you how to use some basic math to accurately measure the correct amount of MEKP for your polyester products. Kits, Seadog Stainless Steel Cup Sanding Existing Gel Coat: You want to sand the surface to make a mechanical bond to the gel coat. If this is going over a patch, we recommend 2 coats at least, to get a nice, uniform surface. Thanks in advance for your help. of Gelcoat w/o Wax = -1 oz. 0000023817 00000 n
1 Oz is recommended for 1 Quart of Gel Coat or Resin. MEKP %. Well, first and foremost, using a Catalyst Chart or these Catalyst Calculators will increase the quality of your work. You should find a warmer spot to move your piece such as room or working office. Gelcoat should not be used when temperature conditions are below 60F, as curing may be adversely affected. 0000002777 00000 n
It's important that the fiberglass is clean before you gelcoat over it. I genuinely do care about ALL my customers and hope everyone of you achieve the absolute best results possible. (1 quart) 1/2 ounce to 1 ounce: 1 gallon: 2 ounces to 4 ounces: Important Note. Let the polyester filler cure until material is firm and tack free, about 10 minutes. Jacks, Boat Trailer Brakes & 0000002243 00000 n
(16 oz. You have a work time of approximately 15 minutes. tube of liquid hardener (MEK Peroxide) is sufficient to harden the entire contents of a gallon container. The cabin top width is 108 inches. 0000005113 00000 n
Below are some things to consider when trying to figure out how many drops of mekp is 1 oz of gelcoat. The correct ratio is 11cc per 1/2 gallon. If youre not sure how thick it is, pick up a mil gauge. The final thickness should be 16-20 mils minimum or the gelcoat may not fully cure. Avoid brushes that are either too stiff or too soft. Does resin need hardener? Bilge Pumps, Shop Parts, Inflatable !0Y|McnY>s,O*T* "LbfM;W20wmw!L Or UPGRADE! 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 choose the right bottom paint for my boat, Painting Your Boat with Interlux Bottom Paint: A Step-By-Step Guide. The normal ration of resin to catalyst is just over 1% but should not go over 2.5%. 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. will cover 160 Sq. The ratio is on the hardener container. Amount of MEKP in Ounces. When spraying to a radius, flow the gelcoat to the tape. Helm Seats, Shop (108 in . The ease of application makes this the perfect gelcoat for repairs and small parts production with no wax needed. Biminis, View Pumps, Livewell Aerator Pumps I always go way over the amount needed. The non-wax gelcoat will remain sticky untill the wax is added. startxref
Covers, Boat Cover Epoxy activators are all proprietary, depending on the product. Gain access to PREMIUM Calculators by WEIGHT when you subscribe today. You should catalyze your material so that it cures as quickly as possible within your working time. Can u paint over gelcoat? Looking for Feedback. xref
Can I spray gelcoat with an airless sprayer? 0000001832 00000 n
Use the recommended thinners/additives only which are listed on the gelcoats product page. 0000001255 00000 n
Initially spray a cover coat as smooth and evenly as you can to cover your repair. Mix thoroughly for at least one minute and apply immediately after. startxref
The minimum recommendation from Dow is 1% MEKP to resin by weight, with a maximum of 2.5%. 50 Graduated Paper Cups Perfect for mixing small batches resin, paint, stain, epoxy from 1 to 3 ounces. Terminals, Marine Fuse Blocks & Always consider the width of the cloth plus an overlap allowance at the seams. 0000010798 00000 n
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. Gelcoat without wax is commonly used for laminating gelcoat in stages, or when applied onto a waxed mold, where fiberglass (or another reinforcing fabric) saturated in polyester resin is laminated onto the unwaxed gelcoat. Spray: Airless or Conventional: 2.0-2.5 orifice tip. Darker colors need a little more catalyst for the same reaction, so you can catalyze up to 2%. 0000019960 00000 n
cloth = 2.84 or 3 pieces). Check color thoroughly before applying. As soon as you are done spraying, clean your sprayer fully with acetone. Caulking, Marine Engine If using a wood mixing stick, place the stick in resin before adding catalyst so the wood doesnt absorb catalyst. Going up to 400, then 600, and eventually 800 grit sandpaper. The MEKP Calculators by WEIGHT are Dead-On when it comes to precision and Superior to any Catalyst Chart. Supplies, Boston Whaler, 1972-1993, For example, four drops of hardener will be 1 percent of 1 ounce of resin. Blocks, Marine Mike, Your email address will not be published. Accessories, Big Jon Add 2% catalyst to your chosen quantity of gel coat, stir very thoroughly and note the time. Sockets, Marine Electrical Creating is very rewarding! May 7, 2007. The reason to use a non-wax is for putting on multiple coats without having to sand in between coats. Depending on the amount of resin needed, pour the appropriate ratios of polyester resin and MEKP into a heavy-duty plastic tub or bucket.
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