Resins that have Duratec in their name require a 2% mix ratio (2 2/3 ounces per gal Vinyl, Floating Boat We have all done it in a pinch, but there's a quicker way. Otherwise, there will be only one coat. Epoxy activators are all proprietary, depending on the product. You will develop a repeatable and scalable process. For most work, a 3 or 4 wide brush will suffice. The warmer the temperature the less MEKp you would to activate the gelcoat/resin. Refer to the catalyst chart located on the product page for the gelcoat you are using or follow the label guidelines. Start typing to see products you are looking for. Blocks, Marine 0000002082 00000 n At 77F, adding 14-16 drops of MEKP to one ounce of TotalBoat Polyester Fairing Compound will provide a working time of 10-15 minutes, and will cure in 20-30 minutes. xb`````Uc p7T,T30H3r``dHbecatXbuk(Y7jc>#`9in4; @Qn gg`(g ` 7 Usually 12 drops per ounce of gelcoat or 1.8% at 77F. Supreme Mariner Joined Oct 18, 2007 Messages 12,932 0000023586 00000 n They are sturdy and smooth on the inside to help with complete mixing. Does gelcoat need wax? It is typically used between 1.25% to 1.75% (1 2/3 ounce to 2 1/3 ounces per gallon). Products, Carbon Monoxide & 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 Come join the discussion about engines, modifications, classifieds, troubleshooting, fishing, boating, poles, maintenance, and more! Parts, Boat Tubing & Platforms, Slide Cushions, Lexington Copyright 2019 IBOATS. Sand it down with 80 grit sandpaper until it's flush with the surface of the fiberglass. (1 pint) 1/4 ounce: 32 oz. Salto. . May 7, 2007. Trolling Motors, Shop It needs to be handled with care. Failing to do so will result in the resin not hardening as it should. Acessories, Fishing Outriggers & Screws, Boat Handles, Pulls, as this one is). Deals, Dealer Darker colors need a little more catalyst for the same reaction, so you can catalyze up to 2%. usually a material called surfacing agent (wax/styrene) or P V A. startxref Deals, Camping & RV Under- or over-catalyzed gel coat will cure slower and look faded or chalky. Terminal MEKP is a clear hardener/catalyst for the room temperature cure of unsaturated polyester and vinyl ester resins. Does resin need hardener? 0000001832 00000 n . Gelcoat needs to be applied evenly. They are flexible enough to make pouring easy. Gelcoat is significantly heavier than Resin because of the fillers and pigments added. Deals, Electrical With the new ratio of .6 CC per oz of gelcoat everything took perfect. Biminis, View Thanks, Let's hope this works this time! Boat, Sell A Ft. @ 10 Mils), Catalyst Concentration by CC (Volume of Catalysts to be Used with Polyester 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. I want to say poly resin needs 10 drops of MEKP per 1 oz. Accessories, Electronic Navigation Ideal range is 1.8% @ 77F. How Many Drops Of Mekp Is 1 Oz Of Gelcoat 625 CC per ounce of gelcoat. Bullet Skimmer, Paint and We offer pre-mixed colors of gelcoat, use this color chart as a guide for the available colors that we have. xref The final thickness should be 16-20 mils minimum or the gelcoat may not fully cure. Gelcoat Repair Part 2: Mixing and Application. Adding too much of either resin or hardener will alter the chemical reaction and the mixture will not cure properly. 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. 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). 0000013646 00000 n In the meantime, you might find this article helpful: Gel Coat Application Guide - How to apply gelcoat correctly (fiberglasssupply.com) Last edited: Jun 1, 2022 The MEKP Calculators by WEIGHT are Dead-On when it comes to precision and Superior to any Catalyst Chart. Winches, Boat Motor Supports & That's the problem. Riptide Terrova 80 Trolling Motor w/i-Pilot & Bluetooth, Inflatable Catalyzing Gelcoat with MEKP: The catalyst level (MEKP) should not exceed 3.0% or fall below 1.2 for proper cure. Each of these coats of gelcoat may involve several passes. 0000002707 00000 n Can you apply second coat of gelcoat? trailer Holder, Anchor & Dock Use a measuring cup rather than a syringe as it can be shot into the container and bounce back into the eyes. Sandable time: Depends on temperature, amount of catalyst, and mass of fairing compound. If youre not sure how thick it is, pick up a mil gauge. FREE MEKP Calculator for Quarts and Ounces. Using the drop method, 4 drops are used. 0000000016 00000 n 0000017788 00000 n Darker color gelcoats will also require more MEKp then the recommended amounts above. How many drops of MEKP is 1 oz of gelcoat? Begin wet sanding with the finest grit that will remove orange peel in the re-sprayed area. This coat should be mostly in the repair area and may be repeated. The cc and oz values in the chart have been converted from weights of MEKP to volumes of MEKP. Newbury, MA. Shelters, Boat X`:.geS>Xpiq~\\|=)Dv0'O-GFT# Hardware, Marine Boat Repair, Boat Paint & Description. Most re-sprayed gelcoat will cure in 2-4 hours, although overnight cures are ideal. Required fields are marked *, Please note, comments must be approved before they are published. When spraying to a radius, flow the gelcoat to the tape. It is only when mixed with an epoxy hardener that they can cure properly. Remove seals from the edges of parts or fittings when doing a repair around that part or fitting. t,efR*o*3nsq5#eRY^_~Y-j8oC/vFTvH*S Forums, Find Legal Disclaimer: User assumes all liability. In open flat areas, layer passes. You should find a warmer spot to move your piece such as room or working office. 19 drops per oz @ about 75 degree produce a quicker drying time with better results . This morning not even tacky and hard enough to sand already! Gel coat is typically the first layer of a part to be applied. If the gelcoat does not get enough catalyst it will not kick or begin to harden. Please follow the instructions located on the products page or the label. 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. Another option is you can use an 800 grit compound for the gelcoat at this stage. Boats, Propeller Parts & Below are some things to consider when trying to figure out how many drops of mekp is 1 oz of gelcoat. Should I use gelcoat with or without wax? If applied onto a floor without the hardener, the resin would remain a near liquid indefinitely and could not transform into a durable flooring system. 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. 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. Deals, Boat Seats I purchased the gel coat which is matched to my color hull from Ranger boats and purchased MEK ( catalyst ) from O'Riley. 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. Practice and prepare!! I would forget the drops and using ounces. Terminals, Marine Fuse Blocks & 2. Avoid brushes that are either too stiff or too soft. For the Water Clear Casting Polyester Resin, this drops to 1.5% or 15ml for every 1kg. When sanding areas that have been filled with putty we suggest using 40 or 80 grit sandpaper, depending on how large the repair is. 7-Eleven Large Pepperoni Pizza. 0000022891 00000 n That is what target for. Tables, Minn Kota Good news! Bottom Paint Store Blog How to Articles. 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. Sockets, Marine Electrical Apply the gelcoat using a brush or spray gun. 0000015038 00000 n Add the MEKP . This time element is dependent on material temperature, room temperature, humidity, air movement, and catalyst concentration.
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