What needs to be done prior to applying gel coat?

Prior to applying gel coat, it is essential to inspect fittings, lines, and filters for leaks. This step is crucial because any leaks can compromise the integrity of the gel coat application process and end up causing defects in the finished surface. Ensuring that all components are functioning properly helps to prevent contamination and issues that might arise later on in the coating or curing processes.

While it is also important to ensure that tools are clean and to monitor for color consistency, these tasks are generally part of the preparation phase that occurs after ensuring the application environment is secure and free from potential leaks. Mixing gel coat with a different binder is not a standard preparation step and may lead to compatibility issues that could affect the performance of the gel coat. Thus, checking for leaks is a fundamental aspect of ensuring a successful gel coat application.