I am looking for advice on using old varnish. I built a Prospector canoe about 3 years ago and had some Pettit Flagship 2015 varnish left over. I sealed it in a canning Jar about 1/2 Quart. and since I am about to put the finish on my MC-13 deck only. I thought I might save some money and use this. It appears to be in good shape. After taking a thin skin off and adding a little thinner and straining it. It looks and smells good. Viscosity seems about right for brushing but I might use my HVLP spray gun.
Please let me know if you think I should dump this and buy fresh. Thanks, Dana P.