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.
Usually directions tell us to grout within 16-24 hours when using sealer as a grout release. I would grout 2-10 hours after applying the sealer to be safe. After grouting, do the final cleanup either the next day or a few day later to allow the grout to cure. You can apply sealer on the tiles and grout after waiting at least 3 days.