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.
Short answer is no, you don't NEED to seal the grout. Grout sealer is one of those products that manufacturers try to sell people that really aren't the best idea in the world. The pitch is that it will prevent mold forming. Well, that is only true in the very short term.