3R839

ALUMINIZED POLYURETHANE FOAM

The 3R839 is an aluminized polyurethane foam with very good sound absorption propriety. The aluminized film also prevents the penetration of vapor, dust and moisture. This product meets the North American safety requirements for flammability UL94.

Applications

The 3R839 is ideal for any application of sound insulation. This product can be used for protection against grease, against certain chemicals and against abrasion. It is ideal for engine compartments, gen-sets, pump housings and equipment enclosures.

Specifications

Technical Data

Physical Properties
Temperature -73°C to 150°C (-100°F to 300°F)
Material Flexible open-cell polyurethane foam
Color Grey-Charcoal
Chemical resistance Acetic acid, hydrochloric acid, sodium hydroxide, trichloroethylene and hydrocarbon oils
Thickness 1/2" and 1"
Density (lbs/pi³) 2
Tensile strenght 17 psi
Absorption coefficients
125Hz .23
250Hz .29
500Hz .93
1kHz .84
2kHz .75
4kHz .64
N.B. The information, details and values indicated are to the best of our knowledge. We recommend to conduct tests according to local conditions. The data is subject to some variations without notice.