The Crystal Klear epoxy kits has been one of the best finds since doing the canoe kits. In the past i would use an industrial marine grade epoxy that was yellowish and dull, requiring several coats of varnish afterwards. The Krystal Klear is one coat for your wet out of the cloth, sand smooth and then apply a thinned second coat for a high gloss clear finish that is hard and durable. Easy for anyone to use. Kids of course need supervision. Please specify whihc model you will be using it for. There are 3 sizes, the small is for the 36″ canoe, the large is for the Laker, 54″ canoe & 72″ and the Xlg is for the 96″ canoe. Please specify which model you are building.