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.
After grouting is complete, clean all tools to remove grout before it dries on. Keep people off the freshly grouted floor for 24 hours. You may also want to seal the grout lines and or tiles if they are in a wet area or may be prone to staining. Wait about 72 hours after install before applying a sealer.