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.
Despite the fact that grout is often the go-to material for bathrooms, it still has its drawbacks. One of the biggest is that it's porous, which makes it stain easily. Sealing grout after it sets is a homeowner's best defense again staining. Sealers come in two main varieties: penetrating and membrane-forming. Penetrating sealers are preferable because they soak into both the grout and the tile. Membrane-forming sealers have a tendency to get cloudy and peel.