I just laid first coat on my spars and nearly 48 hours out, they are still a little tacky. Spars were sanded 220 smooth after 2 coats epoxy. Then wiped down well with denatured alcohol prior to varnish.

I thinned my varnish with 333, then rolled and tipped a thin coat. 

Shop is climate controlled at around 70F temp and 60% humidity or so. 

I'm nervous to move on to my second coat with it still tacky. If anyone has advise I'd be happy for it...