Wax Solution - Surfacing Agent
"Wax solution" is paraffin wax dissolved in styrene that is added to polyester resins and gel coats to prevent tackiness.
The wax in the curing process will rise or "bloom" to the top creating a barrier between the resin and air. Oxygen inhibits the chemical reaction needed for a full cure. However, the wax surface must be removed or sanded prior to applying a second coat.
Methyl ethyl ketone peroxide also known as MEKP, catalyst or hardener, is a chemical that is added to polyester and vinyl resins to initiate a cured product. When MEKP is mixed with the resin, the resulting chemical reaction causes heat to build up and cure or harden the polyester resin. MEKP is required with all polyester resins, gel coats and vinyl ester resin.