Us Department of Interiors
in December 2012, during an active coatings project, the hoover dam parking structure faced an issue with the coating system specified for the deck. After the installer had completed the specified coating system over the flat surfaces of the parking deck structure, it became apparent both the durability and cure schedule of the system was suspect for the drive lanes and turning radiuses. Since the parking structure gets as much as 10,000 cars a day, having 12 hours of cure time for the topcoat being used before returning to traffic was unexceptable. In addition to the timing concerns, there was question about the “texture” achieved by the specified system not being durable enough for the drive lanes.
the drive lanes and turning radiuses were prepared and sealed with a specified epoxy system. Into the epoxy system a 20/40 mesh aggregate was broadcast to excess to achieve the desired “texture”. Two coats of custom color gripseal™ was applied at an average rate of 200 sq.ft. Per gallon per coat using 3/16” nap rollers.
the client was able to open the structure to traffic after 8 hrs of cure between each coat of the gripseal™. Preparation between each coat of gripseal™ consisted of solvent wipe of any containments left from the traffic that day. The end result was a durable topcoat that was color stable and more cleanable than the previously specified product. The client was excited enough with the results they used the product in areas that were specified with other coatings on the lower deck.