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.
The stain is stil there you just can't see it. The use of bleach will change the hue of colored grout lines over time. Not to mention that because the pH level is so high, 11.9, bleach will break down and eat the grout sealer leaving your grout lines unprotected. Because the ceramic tile and grout floor now has a 'haze' on it, as described by Tamera, this is going to be a difficult fix.