Document e5NE7NxwmdEjmoznEK21L20mq

Imagine being able to remove any 12" x 24" area in your ceiling to reach wiring, plumbing, air conditioning ducts --then replace it without repainting or maintenance cost! This money-saving feature is yours with Perfatone acoustical construction. Exceptionally high sound absorp tion efficiency fits Perfatone for noise reduction in of fices and restaurants, and for reduction of reverberation, time to improve reception of speech and music in audi toriums, theaters and radio studios. APPLICATION The 12" x 24" units have center grooves which create the appearance of 12" x 12" units when applied. Installed by expert United States Gypsum Company approved applicators, Perfatone units are clipped into place by special tee runners. The tee runners may be attached to carrier channels in suspended ceiling construction or at tached to plastered ceilings by means of special knock out channels. SC-4 Copynghf 1949 United S'o'ej Gypsum Cd. PERFATONE consists of perforated metal units, 12" x 24", backed by mineral wool sound absorbent pads. This gives you the un usually high Noise Reduction Coefficient of .85, combined with fire resistance, durability, sanitation and ease of removal. IN COMB U STIBLE PAD Mineral wool pad, enclosed completely in a flameproof membrane, is supported within the metal units on crimped, galvanized wire mesh. WASHABLE The smooth, baked enamel metal surface of Perfatone may be washed repeatedly without affecting sound ab sorption efficiency--ideal for locations where dirt and grease are deposited on the surface. PAINTABLE If redecoration is desired, Perfatone may be repainted without reducing the noise reduction coefficient. INCOMBUSTIBLE The metal units and the mineral wool pads are entirely incombustible. Pad wrapping is all flameproofed. BBO22 1300 PERFATONE THE LAST WORD IN TOP Economical maintenance Baked enamel surface is washed easily and quickly to remove dirt or grease. Washing does not affect Perfatone absorption efficiency. SOUND CONTROL AND LOW UPKEEP Removable Individual Perfatone units can be re moved quickly and easily to install or repair wiring, pipes, etc. Units are re placed speedily and simply, snapping into place firmly on special tee runners. High sound absorption Cross section of Perfatone units at a joint, showing pad and pad support. Noise passes through the metal unit and is effectively smothered in the mineral wool pad. T.M. REG. U.S. PAT. Off. AUDITONE* --high sound reduction at low cost, combined in a handsome, slotted wood fiber tile. ACOUSTONE* mineral acoustical tile--combines high sound absorption and fire resistance with a beautiful fissured texture that resembles Travertine marble. No two tiles are identical--pattern is as natural as the grain of wood! MOTIF'D* ACOUSTONE -- same composition as Acoustone; designs "etched" into surface to pro duce striking resemblance to fine damask. *1. M. Reg. U. S. Pot. Off. United States Gypsum For Building For Industry Gypsum lime Steel Insulation Roofing Paint P The Last Word 6 ASK FOR FREE ANALYSIS of your own noise problems. We shall be glad to make an analysis with recommendations for correction at no obligation to you. 03 o00 nroo co o