Stewart Products non-skid is a very nice product. Seaark uses it for non-skid on their boats. It wears really well, and the adhesive they use is some of the best I've seen. Make sure it's right before you press it down.
2015 Seaark 1872 MV CC Etec-90
Helix 12 CHIRP SI, HB 1199, MinnKota Riptide ST80/i-pilot Link, Bob's Hydraulic
Bitter Gun Owner