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.
In this case, I recommend the spray on type of grout sealer. 1  Brush On Sealer. 2  The sealer itself is milky in appearance, and is applied directly to the grout itself with a brush tip. 3  Avoid getting the grout sealer on the tile itself, though a bit does not really matter.