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.
How to Seal Grout. When you are learning how to seal grout, you want to make sure you go slow and that you cover the entire surface of the ground. Try to stay in the grout lines as much as possible. As mentioned earlier, you want to use a bottle roller applicator, or a bottle brush applicator.