While the rest of the world gets caught up in modern technological advances in glues and resins, a fly tyer's needs never change and some things in life don't need no messin' with. This product is one of them. This varnish has the highest cellulose content of any product available, which means it runs quicker than Linford Christie! A simply indespensible bit of kit for all fly tyers, and at home with any type of tying threads, including nylons and kevlar. Dries glass-hard and crystal-clear, and really simple to use with a cocktail stick. Soaks right into the materials really quickly and evenly, bonding everything together underneath the dressing. Top-class product providing faultless long lasting results every time. I'd leave a desert-island-disc behind for a bottle of this stuff! Simply the best there is.