Composite - Barymat BM-1C

Noise Barrier Composite

BARYMAT BM-1C is an extremely versatile noise control composite. It consists of (from the top down) a clear, tough, polyester cover for contamination and weather (inc'l. UV) resistance, a loaded, flexible, 1.6 lb. per sq. ft. barrier for transmission loss (.8 lb. also available) and a .25 in. urethane foam decoupler. BARYMAT BM-1C is very effective as an acoustic lagging to reduce breakout noise in pipes and ducts and can be used to increase transmission loss in walls and ceilings.

Performance Data Performance data is an extract from NRC - Ottawa report on tests according to ASTM E 90-75 and ASTM E 413-73.

APPLICATION AND PRODUCT DATA

Uses: • Pipe / Duct Wrap   • High TL Walls & Ceilings • Lagging for Machinery Housings

BARYMAT BM-1C is easy to apply and is cut with common utility knives. For secure and permanent installations use reinforced duct type tape, mechanical fasteners or specified adhesive - available from Wilrep Ltd.

Thicknesses: Approx. .3125 in. - overall composite thickness.

Standard Dimensions: Sheets: 54" wide X 72", untrimmed (27 sq. ft.) Rolls: 54" wide X 30' , untrimmed (135 sq. ft.) CUSTOM TRIMMING AND DIE CUTTING CAN BE PROVIDED

Typical Physical Properties: Barrier Colour: Black Foam Colour: Charcoal Grey Foam Density: ASTM D 3574-86 - 1.8 - 2.2 lb. / cu. ft. Composite Weight: BM-1C - 1.7 lb. / sq. ft. (BM-1A - 0.9 lb. / sq. ft.- also available) Flammability: MVSS 302 - Passes

Frequency (Hz) Transmission Loss (dB) BM-1C 80 23 100 23 125 23 160 23 200 23 250 23 315 22 400 26 500 30 630 33 800 38 1000 42 1250 45 1600 47 2000 47 2500 47 3150 51 4000 53 5000 55 6300 56   STC 34

Click here for Technical Data Sheet - PDF Format Click here for a free Adobe Acrobat Reader to view PDF files

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Wilrep Ltd.
email: info@wilrep.com
Tel: (905)625-8944 Fax:(905)625-7142