Deck Grip

I assume this is going onto a gelcoat boat ?

If so

1, Go buy a tube of Gelcoat filler (touchup, not the stuff with chopped stand in it)

2, Buy a pan type scourer and sponge thingy (the ones with plastic "wire" on one side and a close cell sponge on the other

3, Find a pen

4, take a very flexable spatula and mix up a small amount and find an old bit of cardboard or somesuch to have a practice on.

5, Apply a thin layer (do not have to be too accurate) to the area to be tested and then "stipple" with both sides of the spoonge and expirment as to the different grade of grippy you can create,  Note, the larger mountains you want, the thicker the layer of filler you will need.

6, Now if you are feeling clever you can try to remember which side of the sponge you used to create the different grips, or use the pen found in step 3 and write it beside each "test"

7, while your collection of tests are drying (won't take long if it's hot).  Clean the area(s) of the boat to be grippied...

8, work out which is the best grip for you and then apply using the same technique as above.

I did both sides of my F16 with one tube, but there was already some grip tape on the hulls.  If you really what to know, I could work out approx area covered with one tube.

It is VERY grippy and very sharp !