Hi, I'm planning on creating a worktop in the new kitchen, with biscuit cut sliced logs set in a clear resin with a layer perhaps 5-10mm above the wood  The wood will be approx 20mm thick, with resin in between and over . So overall thickness will be in the region of 30-40mm.Reading up I've worked out i'll need to seal the wood  But I'm stuck on working or how much resin I'll need. The overall area is 7 meters x 06 metres with a thickness of resin of 30mm, I'm thinking I can cut that in half at least because of the wood taking up the space so 15mm x 7m x .6m? Also would gc 50 be the ideal medium? Cheers