Gelcoat Non-skid deck

[bigi]

I have a couple of my deck hatches repaired and ready for new gelcoat nonskid. I'm going to roll it on as Kmoose and others suggested. Before I get started I'm looking for feedback and/or guidance.

1. Roll out base coat. I can't figure out how to get the relief cured and the rest left ready for the next layer so I figure I'll use duratech and sand the hatch prior to taping off the relief and applying the nonskid layer.

2. Mix 1/3 duratech to gelcoat. Roll on....do you add cabosil or other thickener or roll it until it kicks?

3. Additional coats? Thickened or same as the base layer?

4. How much gelcoat will I need for the deck of a Sceptre? It's an 89' with fish boxes built in.

Thanks for the help!