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My Surfacing Wax is no longer a liquid, it\'s turned solid. Is this normal?
In cold temparatures the Surfacing Wax tends to freeze and just needs to be heated up a little to re-liquify the wax solution. Good to go.
Do you need to use Mekp and the surfacing wax for the hot coat or just the wax instead of the mekp?
MEKP is the harderner for polyester resin. You must use it every lamaintion and hotcoat or the resin will not cure. Surfacing Wax is an additive to make the hotcoat sandable and not tacky.
Can this be added to epoxy resin? If not, is there an alternative product?
Polyester Resin Surfacing Wax Agent is only meant to be used in Polyester Resin and should neever be mixed with Epoxy. Greenlight Surf Supply Marine Grade Epoxy does not require the use of an additional sanding agent. Resin Research Epozy resin usues Additive F as its sanding agent.