Hi, I'm new to posting even tho my husband has on occasion. I am the painter in the family.
Our 40+ year old Allied 39 had had the original non-skid worn off very badly: down to the bare fiberglass in some places. I did a couple years of research and kept coming back to Kiwigrip. I'm old enough to want easy and easy cleanup.
I, too, contacted the supplier in RI and WA. I was advised to paint with a good gloss paint first and then the Kiwigrip. I did not. The nonskid qualities were paramount and looks second. It was important to tape well: it helped when rolling with the supplied roller: the roller goes beyond the desired area when well done. I slopped it on an area about 2 X 2 with a plaster trowel with small teeth. Then, rolled. Then, quickly, removed the tape. When it was difficult to access the tape immediately, we waited the 24 hours for it to set up (as stipulated in the directions) and removed it, sometimes pulling, sometimes cutting. This was all done on sunny June days about 75 degrees. The sun was a problem. You just have to work smaller areas. I paced the work to allow us to get on and off the boat since we were staying aboard. This included painting half way into the boarding gate on one day and half on another. Clean up was water. Using a hose was the best, soaking didn't work. It had to be agitated.
I used 2 gallons. I have a good nonskid on the decks and yet on the seats, where we have cushions, I applied less, rolled, and ended with some nonskid, but not enough to tear the underside of the cushions, or us. It was also important to wash it down afterwards to remove whatever seems to make it slick. This is in the directions.
I am pleased. My original hesitation was getting a color I could live with. They mentioned the 'cream' has been reformulated to be like Hattaras White, which I like. That sold me.