Had one like this and way longer so it was hard to find a solution. We ended up using sand and clear UV resistant polyurethane as a grip surface. You can either mix them together and apply with a roller, or brush on poly and sprinkle on sand like you're salting a roast. We did the later and it's lasted for years
Had one like this and way longer so it was hard to find a solution. We ended up using sand and clear UV resistant polyurethane as a grip surface. You can either mix them together and apply with a roller, or brush on poly and sprinkle on sand like you're salting a roast. We did the later and it's lasted for years