The gelcoat set up what was left in the mixing tub before I threw it out. Supreme Mariner Joined Oct 18, 2007 Messages 12,932 Hardware, Boat Trailer Bilge Pumps, Shop 0000023127 00000 n In open flat areas, layer passes. Looking for Feedback. Downs, Couplers, Mounts, I don't know if age effects it or not. GPS Chartplotter and Fish Finder Combo, Find The weight of MEKP 925 is 1.125 grams per cc. How Many Drops Of Catalyst Per Ounce Of Polyester Resin Keep in mind that you have a limited time to apply what you have mixed (usually between 5-15 minutes). The correct ratio is 11cc per 1/2 gallon. Products, Carbon Monoxide & Correct application of gelcoat is critical to get the optimum performance from it. 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 . Determine the Existing Surface: First thing you want to do is look at the surface on which you want gelcoat applied. Ideal range is 1.8% @ 77F. Working time is about 5 to 15 minutes, . Dock, Cabin and Conversely, you will need moreMEKp for cooler temperatures. Be sure to have a good strategy when applying your gelcoat. 0000003380 00000 n 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. 2 What is Topcoat? 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 . If youre not sure how thick it is, pick up a mil gauge. It is typically used between 1.25% to 1.75% (1 2/3 ounce to 2 1/3 ounces per gallon). 0000001255 00000 n Gelcoat should not be used when temperature conditions are below 60F, as curing may be adversely affected. It's important that the fiberglass is clean before you gelcoat over it. Required fields are marked *, Please note, comments must be approved before they are published. If you brush on the gel coat, make sure to use a solvent-resistant brush. For each teaspoon (1/6 oz) of blended gelcoat paste, add four drops of hardener. Smoke 0000015094 00000 n Professionals, Boat Restoration, Building, and Hull Repair, Shop For example, four drops of hardener will be 1 percent of 1 ounce of resin.How much hardener do you add to polyester resin? Financing, Iboats 13 0 obj<>stream How do you know how many ml's per drops you are getting? Gelcoat will not darken or change colors when it dries. I tried 12 drops of MEKP Catalyst per oz my first try in about 80 degrees F. Then I found a MEKP Catalyst pdf with great instructions. Cable, Marine Batteries & Are there different types of gelcoat? - TimesMojo 0000001279 00000 n 5. Easy! 114 0 obj <> endobj Sparky568 Junior Member. Polyester resins and gelcoats require the addition of MEKP (Methyl Ethyl Ketone Peroxide) catalyst to cure in a desired amount of time. Does gelcoat need wax? 3 This should be Noted when Buying Gelcoat and Topcoat; 4 Buying Gelcoat / Gelcoat Repair Kit; 5 Buying Topcoat; 6 Instructions for Gelcoat Repair. Adding more of less of the catalyst agent will speed up or slow down the curing time for the resin. Varnish, Marine Adhesives, Free shipping for many products! That is what target for. 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. Apply gel coat to your part. Darker color gelcoats will also require more MEKp then the recommended amounts above. If you want to roll on a gelcoat, be sure to use a 1/8 or 14 solvent-resistant nap. TIP: If using a wooden mixing stick, place the stick in the resin before adding catalyst so the wood doesn't absorb the catalyst. How to Apply Gelcoat by Brush and Roller. . Tables, Minn Kota Sandable time: Depends on temperature, amount of catalyst, and mass of fairing compound. Have you ever spent what seems like days measuring drops of mekp or catalyst for your polyester resin? This item has a shelf life of approximately 2-3 months. Always consider the width of the cloth plus an overlap allowance at the seams. Blocks, Marine This is a simple, easy way to see the thickness of your gelcoat. However, if you have opacity problems two coats may be necessary with a light sanding between coats. As mentioned above, the plastic is to help with the cure. Marine Coat One Iso/Npg Marine Gel Coat White with Wax with MEKP Accessories, Marine Electrical Otherwise, one coat will do. First, decide if you need one or two coats of gelcoat. How to properly measure MEKP for your polyester resin, gelcoat and more Catalyze gel coat with #69 MEKP at 1.5%. The MEKP Calculators by WEIGHT are Dead-On when it comes to precision and Superior to any Catalyst Chart. Practice and prepare!! No catalysts are needed. You should catalyze your material so that it cures as quickly as possible within your working time. However, I can NOT guarantee you will achieve the same results as I would. The specific gravity of MEKP is 1.045. It may not display this or other websites correctly. Below you will find a detailed gel coat preparation guide on how to apply gelcoat to your boat, RV, or other surfaces. Catalyzing Gelcoat with MEKP: The catalyst level (MEKP) should not exceed 3.0% or fall below 1.2 for proper cure. Mix in the MEKP at 1-1.5% and see if it works ok on a test panel. How many drops of MEKP is 1 oz of gelcoat? - AnswersAll See more 1 fluid Oz equals about 30ml if memory serves, so if you want 2% you would need 0.6ml of MEKP per oz of gel. Deals, Camping & RV Steel Blue is a dye youre going to wipe on or you can use the blue dye spray. of Gelcoat w/o Wax = 2-4 oz . Sanding Aid / Surfacing Wax (Modifier-C) - Composite Envisions

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