This is true. There are plenty of other companies that will seal your travertine and/or paver surfaces. Some even offer slip resistance as well. However, what they do to achieve “slip resistance” is they add a rounded plastic aggregate to the surface, like “Shark Grip”. Majority of the pool decks we are called out to, have been treated in this manner and all fail to meet the 0.55 requirement. The best way to think about it, is that we don’t sell sealing services… we are selling safety. If you want to seal your travertine or paver surface, there is only one company that can do it with a scientifically proven method for slip resistance!