It will take a minimum of two coats of gelcoat if you are changing colors. as this one is). Can I spray gelcoat with an airless sprayer? 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. Accessories, Marine Electrical 1.25. The higher the temperature, the less hardener you need. Plumbing, Anchor Thanks for the help. Accessories, PWC Parts & Vinyl, Floating Boat 38 in. The thickness of the matchbook cover is approximately 18 mils. Once the coating (gelcoat) has cured, it should be block sanded using 250 wet grit paper to remove all brush marks and high spots. Steel Blue is a dye youre going to wipe on or you can use the blue dye spray. Approximately eight drops of MEKP to each 1/2oz. Remember to always lap wet. This will avoid unnecessary sanding scratches. B. Forums, Find Now, Shop 625 CC per ounce of gelcoat. Financing, Iboats Avoid brushes that are either too stiff or too soft. startxref
Easy! Hardware, Boat Cabin CREATE & Circuit 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. Adding more of less of the catalyst agent will speed up or slow down the curing time for the resin. However, neither they nor any Catalyst Chart can provide the exact ratio by WEIGHT. Gel coat is typically the first layer of a part to be applied. 1 GALLON 2 OUNCES The Right Fit, Shop By per Volume). Polyester resins and gelcoats require the addition of MEKP (Methyl Ethyl Ketone Peroxide) catalyst to cure in a desired amount of time. Covers, Boat Wiring & Use a gelcoat thickness gauge to ensure proper thickness is achieved. Gelcoat is significantly heavier than Resin because of the fillers and pigments added. Can you mix resin in paper cups? Tags: MEKP > MEKP for gel coat > gel coat catalyst > gel coat hardener > hardener for gel coat > 132662 > 132661. 0000000836 00000 n
The non-wax gelcoat will remain sticky untill the wax is added. We suggest a thickness of 18-20 mils to properly cure. Measure catalyst accurately. Dollies, SportsStuff Great Big **NOTE** Duct tape is recommended over masking tape because it provides better protection. Parts, Inflatable Rails, Marine Tools & Tool This will accurately measure the proper amount of catalyst. The cc and oz values in the chart have been converted from weights of MEKP to volumes of MEKP. Covers, Boat Cover Refer to the catalyst chart located on the product page for the gelcoat you are using or follow the label guidelines. The application of gelcoat is pretty straightforward when you follow this guide. Keeping good notes will help you build a database of initiator levels for temperatures that you encounter frequently. Clean the repair area and all tools with acetone prior to application. . Duct tape off adjacent gunwale molding, and deck fittings you are unable to remove. It has to be mixed at a 1:1 ratio with gelcoat. & Dock, Anchor Chains & Resin that cures still in the mixing pot is unusable. Beside this,how many drops of hardener do i need for gelcoat? This is about polyester gel with MEKP hardener. This morning not even tacky and hard enough to sand already! ADD TO CART. The color wet is the color when dry. Please follow the instructions located on the products page or the label. However, I can NOT guarantee you will achieve the same results as I would. The car polishers wont work if theyre spinning too slowly, so you want to check the speed of the spin. Methyl Ethyl Ketone Peroxide (MEKP) MEKP is a clear hardener/catalyst for the room temperature cure of unsaturated polyester and vinyl ester resins. Do you sell MEKP? How many drops of MEKP is 1 oz of gelcoat? Seats, Fishing Boat 1 TBS = 1/2 oz. 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. 0000022629 00000 n
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5. Accessories, Marine DC Power Plugs Do not work in direct sunlight. They are sturdy and smooth on the inside to help with complete mixing. & Sonar, Trolling Gelcoat should be applied at temperatures of 60F to 80F. Beside this,how many drops of hardener do i need for gelcoat? Salto. The reason to use a non-wax is for putting on multiple coats without having to sand in between coats. Deals, Pumps & Plumbing 0000023316 00000 n
Sand it down with 80 grit sandpaper until it's flush with the surface of the fiberglass. Systems, Lowrance Hook2-4 GPS For each teaspoon (1/6 oz) of blended gelcoat paste, add four drops of hardener. Newbury, MA. Check the temperature of the Gelcoat stock and insure that it is not below 70F. If it is in the 60's use 2.5 cc/ml or 50 drops for 2% MEKP. Accessories, Boat Lift Canopy 0000018032 00000 n
Catalyze gel coat with #69 MEKP at 1.5%. Can you apply second coat of gelcoat? Under or over catalyzation retards curing and causes fading and chalking. Mix small batches at a time since too much MEKP will result in the hardening of the gelcoat way too fast! 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. For Dogs & Cats Free Shipping at the best online prices at eBay! 0000010798 00000 n
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Should I use gelcoat with or without wax? 1 Oz is recommended for 1 Quart of Gel Coat or Resin. Instantly, you will gain predictable results. Apply gel coat to mold surface. Avoid re-brushing as this could remove the waxy surface additive. Find many great new & used options and get the best deals for Veterinary Formula Clinical Care Ear Therapy 4 oz. That sounds about right. MEKP Hardener 1 oz. Adding more of less of the catalyst agent will speed up or slow down the curing time for the resin. Polyester resin is not nearly as forgiving as epoxy so you really gotta be on the money with the mix. Boat, Boat Buyers therefore by my calculations you'll need 10 drops. There are also disposable cup liners available that you can insert into the plastic Poly-Pro graduated cup or paper cup. Take steps to cover and protect the rest of the boat before starting. As mentioned above, the plastic is to help with the cure. How do you know how many ml's per drops you are getting? (2% of MEKP for colder temperatures.) Once gel coat has tacked up, about 20 minutes after final layer has been applied, lay-up of the part can begin. How to mix Fiberglass Resin & Clean Tools. Gel coat is a polyester resin and uses MEKP as the catalyst. They are flexible enough to make pouring easy. Rafts, Paddle Shelters, Boat Gelcoat without wax is used when you have a different method selected to cure it. Sparky568 Junior Member. Charts & AN Transom For example, four drops of hardener will be 1 percent of 1 ounce of resin. Kits, Boat Trailer Bilge Pump, Tires, Rims, & Hub (16 oz. This MEKP is the catalyst/hardening agent for polyester resins and polyester gelcoats. Ratio The ratio range for catalyst to resin is 1 to 2 percent hardener to the total volume of resin to be used. You should mix about 4 oz and that will be 1.375 cc/ml. Ideal range is 1.8% @ 77F. 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. Hardware, Boat Seats by 0000022891 00000 n
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. How Many Drops Of MEKP Is 1 Oz Of Gelcoat? PFDs, Roof Racks, Carriers, will cover 160 Sq. This is a simple, easy way to see the thickness of your gelcoat. Resin starts to cure but does not go all the way completely. Oars, Wakeboard, Wakesurf & 2. gelcoat needs a surface seal of some kind to inhibit air on the surface. 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. I would forget the drops and using ounces. t,efR*o*3nsq5#eRY^_~Y-j8oC/vFTvH*S Poly products need to be sealed from air to fully cure. For spraying gelcoat our FGCI brand does not recommend thinning. Oz = fluid ounce . 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. To cure properly and completely, gelcoat needs to be devoid of oxygen. Outboards, Shop 19 drops per oz @ about 75 degree produce a quicker drying time with better results . Lay on the gel coat in a heavy thickness (about 10 mils) using horizontal strokes, and working from top to bottom. But I believe it to be 12 drops of hardener per ounce of gelcoat. 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. Eric Boudreau 1 year ago Updated 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 .0-2.2% MEKP based on the weight of the resin). Rollers, Boat Trailer %%EOF
Gel coat will not fully cure without adding a surfacing agent or over spraying with PVA. Seats, Pontoon Boat Seats & Hardware, Boat Trailer FREE MEKP Calculator for Quarts and Ounces. of Fiberglass Resin (or for can of Fiberglass Resin, use tube of liquid hardener). 0000000016 00000 n
Sockets, Marine Electrical Resin and Gelcoat differ in weight. Tables, Minn Kota Software, Digital This is the amount of Catalyst you will add in Ounces. <<2369ebe0f6fbc740aa2d803257e02535>]>>
Manufacturer, Boat Tables & The resin's reaction starts with the addition of MEKP at 0.5% to 1.5 % (2 % for thin laminates). Use the spreader to add the . I want to say poly resin needs 10 drops of MEKP per 1 oz. You may purchase this item if you desire additional . of wax; and 1 gal. How to Apply Gelcoat by Brush and Roller. OUNCE 20 DROPSWhen using Surfacing Wax with your resin/gelcoat, youmust also add the MEKP(Hardener). Spraying gel coat is recommended for more accurate and consistent coverage. I genuinely do care about ALL my customers and hope everyone of you achieve the absolute best results possible. Thank you! It usually will not adhere to these surfaces. Riptide Terrova 80 Trolling Motor w/i-Pilot & Bluetooth, Inflatable 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. Adding cured meats such as pepperoni or sausage adds even more sodium. 0000003502 00000 n
Combos, Fishing Tools & No catalysts are needed. When sanding areas that have been filled with putty we suggest using 40 or 80 grit sandpaper, depending on how large the repair is. Platforms, Slide Biminis, View
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. Ski, Wakeboard Finish/topcoat with. For a better experience, please enable JavaScript in your browser before proceeding. Jacks, Boat Trailer Brakes & xbbb`b`` 2
Method of Application: Next, determine if you are going to brush, roll or spray your gelcoat so you can prepare the gelcoat for application. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. When rolling on gelcoat be sure to use a 1/8 or 14 solvent-resistant nap. 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. . Free shipping for many products! 2. . 6.1 Cleaning Surface; 6.2 Sanding the Surface; 6.3 Apply Gelcoat; 6.4 Technique 1: Renewal of the Gelcoat with Laminate; 6.5 Technique 2: Renewal of the Gelcoat . So bought a quart of MarPro gelcoat with wax with the MEKP hardener included. Cushions, Lexington Lighting, Marine Teak 141 0 obj
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Below are some things to consider when trying to figure out how many drops of mekp is 1 oz of gelcoat. 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. Add 2% catalyst to your chosen quantity of gel coat, stir very thoroughly and note the time. Enjoy!!! Covers, Boat Seat Login, Boats hry/ %qSB>JdM|}gvei8=sY<9Y'W`g09tkJLNf B3!^Oil
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p{ql+s,S'. of Catalysts to be Used with Polyester Resins MEKP - Number of oz. Polyester resin is not nearly as forgiving as epoxy so you really gotta be on the money with the mix. 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. It is also needed with all gel coats. 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. Ventilation, Interior & Cabin FGCI s Brushable Gelcoat is a unique proprietary product with excellent leveling characteristics, allowing application by paintbrush or roller without leaving brush marks or streaking. I do suggest you start small. We recommend 1.5% - 2.0 % by volume. 0000006330 00000 n
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. Battery Charger, Marine Audio & of wax; 32 oz. 0000002707 00000 n
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It is typically used between 1.25% to 1.75% (1 2/3 ounce to 2 1/3 ounces per gallon). When mixing small batches, catalyze with 12-18 drops hardener per ounce of gelcoat. Catalyzing Gelcoat with MEKP: The catalyst level (MEKP) should not exceed 3.0% or fall below 1.2 for proper cure. This is a simple, easy way to see the thickness of your gelcoat. You will develop a repeatable and scalable process. Gelcoat should not be used when temperature conditions are below 60F, as curing may be adversely affected. 0000023354 00000 n
If you dont see the blue dye again, you know youve sanded it all properly. 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. If adding pigment do so first and thoroughly stir in mixing well before adding catalyst, be careful not to under or over pigment. Then use a rubbing compound to remove the rest of the scratches. The mid point of 1.5% is most common. Biminis, Paint and When MEKP is mixed with polyester or vinylester resin, the resulting chemical reaction causes heat to build up and cure or harden the resin. (108 in . We all have a phone with a calculator so that makes this process even easier. 0000015038 00000 n
Mekp is too hard to measure by drops to me, so I use a syringe and do it by ml instead. The ratio is 1-1 oz tube per quart, or a 4 oz tube per gallon. Note: All gel coats and resins from the Bottom Paint Store include MEKp with the applicable size of gelcoat/resin. Applying Gelcoat by Brush or Roller: Choose a good pure (natural) resin-resistantbristle brush with tapered ends. See this article for more information: How to Apply Gelcoat by Brush and Roller. Terminal The MEKP Calculators by WEIGHT are Dead-On when it comes to precision and Superior to any Catalyst Chart. Drink Holders. 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. 1 What is Gelcoat? If there is a trim color, you should have a narrow trim brush on hand. Description. You should find a warmer spot to move your piece such as room or working office. TIP: If using a wooden mixing stick, place the stick in the resin before adding catalyst so the wood doesn't absorb the catalyst. Below are two FREE MEKP Calculators and a MEKP CHART to simplify the process of determining the proper ratio of resin to catalyst or gelcoat to catalyst. Go on line to gelcoat suppliers like Spectrum to confirm how many drops of mepk they recommend. AND have fun!! Ideal range is 1.8% @ 77F. The heavier fast-cut grits (40/80/100) are used to feather sand and ground out a routed area prior to filling. 0000012247 00000 n
Trailer Winches, Shop Also, they are used for the first sanding of gouges, dock dings, scratches, and blisters. 0000001553 00000 n
Use a measuring cup rather than a syringe as it can be shot into the container and bounce back into the eyes. xref
Deals, Paint & Maintenance Upgrade the Premium MEKP Catalyst Calculator by WEIGHT EXCLUSIVELY offered by Vernese Customs. Holder, Anchor & Dock Ideal for touching up scratched gelcoat. RESIN, Quarts. Bullet Skimmer, Paint and Accessories, Boat To catalyze TotalBoat Polyester Laminating Resin, at 77F, add 7-8 drops of MEKP catalyst per one fluid ounce of resin. usually a material called surfacing agent (wax/styrene) or P V A. 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. Gel coats are often the exterior coating for composites parts, providing both the color and texture of the part. Does gelcoat need wax? Darker color gelcoats will also require more MEKp then the recommended amounts above. The ratio is on the hardener container. Hardware, Marine JavaScript is disabled. Marine Battery Chargers, Shop Required fields are marked *, Please note, comments must be approved before they are published. Legal Disclaimer: User assumes all liability. Waxes, Boat Cleaning 0000013646 00000 n
Ditch the oz's and drop crap. You can over-spray with PVA before gel coal reaches its gel stage (5-10 min.
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