They are not normally, but when wet with water or oil they can be. All the flooring solutions we provide conform to OSHA coefficient of friction specifications for floors. We typically include small anti-slip aggregate into the clear coat mix in order to increase the friction co-efficient. This consists of an extremely hard material (aluminum-oxide) that actually helps strengthen your floor as well as give you traction. If you'd like additional anti-slip properties in your floor, like is common for public bathrooms, kitchens, and workshops, we can provide you with one of our common epoxy aggregate mix option. Many other contractors will use a plastic based aggregate in place of aluminum-oxide which will wear away and no longer provide the traction you get when the floor is applied. This isn't the case with the metallic alloy we use.