Solarez Fly Tie THICK-Hard Formula 5 gram tube Solarez UV Cure Fly Tie Resin - Thin, Flex, Thick - 5 Gram Tube These resins cure exceptionally dry unlike other UV cure resins that cure tacky. Thin, Hard Formula - Super-hard scratch resistant finish Thick, Hard Formula - Very viscous for making thick coatings or spheres (bodies, heads, eyes) F-L-E-X Formula - flexible finish for swimmers, flex parts - can also be used as a wader repair