WebJan 5, 2011 · Gelcoat requires Methyl Ethyl Ketone Peroxide or MEKP to enable the process of hardening. It’s a very small number. We suggest 1-1/4% to 1-1/2% by volume, i.e. 13-15 cc per quart. Darker colors need a … Webresin’s reaction starts with the addition of MEKP at 0.5% to 1.5 % (2 % for thin laminates). The ratio is dependant on air temperature, resin thickness, temperature of resin and mold. Fillers are added to help control peak exotherm, shrinkage, and cure rate. Unfilled resin can heat up to 300F resulting in cracking.
MEKP Ratio Chart Polyester Resin - Silpak
WebAt 77F 1.8% MEKP will provide a gel time of 10-17 minutes. Keeping good notes will help you build a database of initiator levels for temperatures that you encounter frequently. Gelcoat … WebJul 11, 2024 · 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. If this is true which seems to be the issue I … teardrop trailer building kits
GELCOAT AND RESINS CATALYST RATIOS NCINSTGCCAT …
Webresin’s reaction starts with the addition of MEKP at 0.5% to 1.5 % (2 % for thin laminates). The ratio is dependant on air temperature, resin thickness, temperature of resin and mold. … WebThinning 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. Use one or the other. Do Not combine. … WebApr 1, 2024 · Generally, gelcoat should get 1-3% MEKP catalyst, with 2% being the average. When mixing larger batches or working in warmer conditions, it is advised to reduce the percentage of catalyst as needed, down to 1%. When working with small batches or cooler temperatures, up to 3% catalyst can be added. spanisch a2 niveau