Gypsum, Paint, Finishes
Water-repelling concrete stain formulated specifically for precast tilt-up concrete applications penetrates the concrete surface, providing resistance against color fading, blistering, and efflorescence. Vertical Concrete Stain dries in 15 minutes and can be applied with conventional spray equipment.
Reader Service No. 208
Photoluminescent paint can be used on walls, floors, metals, and other surfaces to provide illumination during emergency situations. Kryptaglow is composed of a combination of photoluminescent pigments, such as strontium, that emit yellow-green light for up 12 hours. The paint has a 10-year lifespan and "recharges" within 30 minutes of exposure to daylight, white lamp light, or UV light.
Reader Service No. 210
Super-Tough Gypsum Board
Abuse-resistant interior wall panels (above) are composed entirely of high-strength, non-organic gypsum fiber, eliminating the strength degradation and moisture intrusion often encountered with traditional paper- or glass-mat-faced gypsum board. Moisture-resistant Fiberock Aqua-Tough panels can be used as a substrate for ceramic tile applications, or painted, textured, or wallpapered for traditional drywall applications.
Manufactured from 95% recycled material, the panels have been tested for their environmental merit by Emeryville, Calif.-based Scientific Certification Systems.
Reader Service No. 202
Mold Takes Hold
The lack of moisture resistance inherent in paper-faced gypsum sheathing has caused Georgia-Pacific Corp. to discontinue the manufacture of such products for exterior applications. When exposed to precipitation or humidity during the construction phase, paper-faced gypsum board can become a breeding ground for mold growth. G-P will exclusively market its line of DensGlass glass-mat-faced gypsum board, which provides various levels of moisture resistance.
Reader Service No. 203
Dancin' on the Ceiling
To provide superior acoustical performance and stunning visual appeal, architect Moshe Safdie designed at a 4,000-sf, free-floating, undulating drywall ceiling for the main auditorium at the Salt Lake City Public Library. Local acoustical contractor Spacecon installed the ceiling using a drywall grid system that allowed workers to pre-form the curved main beams on the ground. "Once we created the curves, it was just a matter of snapping the components together," says Gary Hatch, project superintendent with Spacecon. Hatch estimates that construction of the ceiling with the Armstrong grid system was at least 50% faster than traditional ceiling framing methods.
Reader Service No. 204
Clearly on Top
Top coat for epoxy floor finishes improves abrasion resistance of floor coatings and eliminates the need for frequent recoating. Hi-Gloss retains its smooth, glossy finish, even in high-traffic areas, and is suitable for indoor and outdoor applications, including auto service centers, computer rooms, warehouses, manufacturing plants, aircraft hangars, and cafeterias.
Reader Service No. 201
Gloss urethane enamel coating for metal and masonry surfaces provides resistance to color and gloss fading, and dries to the touch in just 30 minutes. Available in a range of colors, Pitthane II is a high-gloss finish ideal for exposed steel applications.
PPG Industries Inc.
Reader Service No. 211
Water-based, inorganic paint is non-toxic, odorless, and nonflammable, providing an environmentally friendly choice for coating exterior and interior concrete and plaster walls, stainless steel, aluminum, and zinc-plated metal.
Roto Singapore Ltd.
Reader Service No. 207
Silent and Dry
Line of sound-masking, fire-resistant gypsum panels for elevator shafts, stairwells, and separation walls has been expanded to include a mold-resistant version. Silent Guard TS features a non-organic core and surface to provide protection against mold and mildew.
Temple-Inland Forest Products.
Reader Service No. 218
Mural Recalls Coney Island's Historic Past
More than 100 years of history and memories of Brooklyn's Coney Island have been cleverly captured in a 300-foot-long, 17-foot-high glass-block mural at the newly renovated Coney Island Subway Terminal. The $190 million renovation project, completed in May 2004, included the commissioning of artist Robert Wilson to design the curvilinear glass-block partition wall mural, which depicts sights that have made the area famous, such as roller coasters, hot dogs, and beaches. Wilson's artwork was sandwiched between two 1½-inch solid glass pavers bonded together to create the 3-inch-wide block. With the Vistabrik glass blocks split in half, the images were silk-screened to the glass pavers, which were then placed in a kiln and baked into the glass. The two pavers were then bonded together.
Reader Service No. 216