Monthly Archives: October 2016
There are two types of gel coats- General Purpose (GP) Gel coat and Tooling Gel coat.
General Purpose (GP) Gel coat is more flexible and softer than tooling gel coat. It is used where the end product will be submitted to constant vibration, such as boats and car bodies. It will flex and not crack under a constant beating. It can be scratched easier than tooling gel coat.
Tooling Gel coat is harder and less flexible than GP gel coat. It is mostly used on molds. It is harder to scratch which is ideal for molds that will be used numerous times.
5 OctMEKP is a clear hardener/catalyst for the room temperature cure of unsaturated polyester and vinyl ester resins. It is also needed with all gel coats. It is typically used between 1.25% to 1.75% (1 2/3 ounce to 2 1/3 ounces per gallon). Resins that have Duratec in their name require a 2% mix ratio (2 2/3 ounces per gallon).MEKP is hazardous. It needs to be handled with care. We sell catalyst dispensers to help you carefully add/measure the amount of MEKP you need.