Definitely visit Sherwin Williams. We use an industrial paint at work around our machining centers, which have coolant troughs in the concrete floor. The floor stays wet and we have all of the concrete covered with a paint that has grit in it (not sure if it is sand). It does a great job of keeping the concrete from being slippery. We buy it from Sherwin Williams, but I can not remember the name of it. If you can't find it there, let me know and I will look at work next Monday. Good Luck!!