Painted a few jigs today and for the first time ever I used D2T to clear coat with. Long story short I used syringes to measure up equal parts in a cup then I mixed throughly when combined. Was able to use about 5-10 minutes then it starts getting stringy and hardens in cup. The baits I was able to coat with look great but just not the 30 minute working time I expected. I was outside in my carport with no breeze and about 75-80 degrees outside. Any thoughts as to what i did wrong? Thanks