Rating Newest Oldest. Best Answer: Air Brakes are included as part of a CDL-A so a seperate endorsement is not required, but for a CDL-B or lower, If the vehicle you will be driving is equipped with air brakes, then you need an air brake endorsement.
The Color Sealer is an Acrylic Resin that has a chemical reaction with the grout that hardens in the pores and dries to a natural look and feel. The constant acting mildicides provide a sanitary grout line surface. It colors and seals in 1 bottle. Easily wipes off tile surface when applying.
Sand is porous, which means that grout is porous.. Once grout has been applied and dried, it is ready to absorb any liquid that comes its way. You need to get one step ahead of the moisture, and penetrate the grout with sealer. I will tell you right away that grout sealer is not fun to apply.