Had some time tonight. Cut up 2 of the 4 fiberglass mat sheets I bought into squares. First batch of resin I mixed was 4 ounces and started laying glass in the cubby then worked my way outward. I quickly found out that I mixed way too much resin at one time and wasted about 2 ounces. I only mixed 1 ounce at a time or less thereafter. It is a messy sticky process. I worked on my screen patio with an oscillating fan running behind me. I wore disposable latex gloves, safety glasses, a dust mask, went through 4 paint brushes, 3 pairs of gloves, and more than half of the container of resin for ONE layer. Going to lay at least two more. Need to buy more brushes and resin.