Does Your Precast Darken with Water?

If the precast concrete on your building’s exterior darkens when it rains or when water is applied, consider a trusted protective coating to preserve it. Presto performed work on a building that needed cleaning first, then sealing nearly a decade ago. The darker areas indicate where water was penetrating the precast during cleaning. After the…

Rainbows Are Not Always A Pretty Sight!

Rainbow stains are one of the most interesting problems we have encountered in our 20+ years of glass restoration. We call them rainbow stains because of all the different colors that form on the glass which is created by the glass stored outside in the rain while the building is constructed. This continual contact with…

Bricks and Mortar Need TLC

Presto’s LeachStop® on bricks and mortar which prevents penetration of water and the effects of the elements. The area in the center of the photo was treated with Leachstop® days before applying water to the brick wall. It is easy to see where the protected area prevents water from penetrating the brick and mortar. This not…

Restore Metal Window Frames Without Damage

A building’s metal surfaces, such as window frames or aluminum composite panels, can develop the same unsightly stains that glass and stone do. Detergents and other environmental grime collects on the frames contributing to a high concentration of contamination. Often, window frames have years of build up that needs to be removed; since window frames…

Glass Restoration: Right Way Vs. Wrong Way

Presto is in the business of restoring architectural building window glass to its original luster. Glass restoration is a highly-specialized service that requires the right technique, proper products and skilled technicians. Improper products and techniques can result in severely scratched and noticeably damaged glass including the use of abrasive chemicals in an attempt to remove the stains. Other…

Building Maintenance for Flush Mount Systems

Our product line is specifically formulated to deal with flush mount window and precast systems which suffer problems due to minerals leaching from the precast down onto the glass and frames. This system while providing a beautiful architectural presence, is often plagued by glass stains. Typically this is due to improper or inadequate building maintenance.…