QuieTech Perforated Aluminum
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Technical Specifications Perforated Aluminum QuieTech Perforated Aluminum Specifications: pattern one Perforation Pattern 36% open area .087” diameter holes Weight .40 lb/ft2 Thickness .040” Sheet size 4´x 8´ Pattern as shown on right Pallet + packing charge applies * Cutting for UPS shipping: sheets cut into thirds (48” x 32”). $15.00 cutting charge per sheet for 1-10 full sheets or less. Specifications: pattern two Perforation Pattern 25% open area .10” diameter holes Weight .47 lb/ft2 Thickness .040” Sheet size 4´x 8´ Pallet + packing charge applies * Cutting for UPS shipping: sheets cut into thirds (48” x 32”). $15.00 cutting charge per sheet for 1-10 full sheets or less. SOUNDOWN Perforated Aluminum with QuieTech offers a hard durable finish, aesthetic appeal, and sound absorption that all adds up to the perfect engine room finish material. SOUNDOWN Perforated Aluminum with QuieTech provides one advantage unique from all other engine room finishes.This material provides acoustic absorption that is unavailable from any other standard finish materials.The integral, “blackout” of QuieTech provides a one step-covering layer protecting and hiding underlaying insulation eliminating the high sound reverberation from a typical solid finish. SOUNDOWN’S Acoustical Perforated Aluminum sheet is an ideal protective and cosmetic covering for engine room insulation materials. These sheets have an oven cured epoxy-polyester hybrid coating that provides high resistance to abrasion and corrosion.Two available patterns at 25% and 36% open area, allow a choice of engine room appearance. Both patterns allow sound waves to be passed from the engine room and absorbed by the QuieTech and other insulation, without noise increasing reflections. What is QuieTech? QuieTech is a wet laid acoustic nonwoven fabric made of cellulose and glass fibers. It is very homogeneous in weight and thickness. How Does Quietech work? A QuieTech mat is bonded firmly to the perforated panel. Sound waves are forced through the nonwoven generating heat friction.The heat friction results in a loss of energy, reducing the magnitude of the sound. QuieTech Modifies the sound impedance of the perforated sheet to a level that is equivalent to the impedance of air, thus minimizing the level of reflected sound. QuieTech forces sound waves to literally “shear” around the fibers of the dense nonwoven sheet, causing them to lose energy as they pass through a cavity behind the perforated plate. QuieTech provides excellent performance across the entire audio frequency range. Is QuieTech flame retardant? Yes. QuieTech has a flame retardant finish and meets the requirements of Class A as per ASTM -E84-91a (Flame, Spread & Smoke).

Quietech Sheets Aluminum Absorber Layer Grade 5052 Thickness inches (mm) .040” (1.0) Sheet size Feet (cm) 4´x 8´ (122 x 244) wet layed non woven black or white Thickness inches (mm) Typical Physical Properties Metric/BS & DIN EN Standards Codes QuieTech Specifications Weight Thickness Fiber Flame and Smoke Spread ASTM-E84 0.399 lb/sq,ft 0.048” Cellulose/Glass Class A Sound Impedance Weight Thickness Quality verified to British Standard (BS) Classified in Class O for the requirements of the UK Building Regulations 1991 BS 476: PART 7: 1987/ Class 1 as per WARRES Test Report No. 64899 and...