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In addition to noise absorption applications, the various "acoustical" foam types are also used for sound fidelity functions, such as stereo speaker grills, in earphones, microphone covers and even smoke alarm grills.

HyFonic 1 ®

An Extended Environment Sound-Absorbing
UL 94HF1 Foam By Foamex


General Description Quality Fabricated Foam Products.

HyFonic ® 1 is a combustion-modified polyether polyurethane foam developed to resist hydrolytic degradation. It resists degeneration from hot, humid environments; nonair-conditioned or intermittently air conditioned environments. It can withstand intermittent temperatures as high as 250 degrees F, and as low as -40 degrees F it shows no evidence of cracking or tearing when bent around a mandrel equal in diameter to the foam thickness.

Noise-Absorbing Characteristics

HyFonic ® 1 was developed primarily as a noise-absorbing foam. It has fine pore structure, 65 pores-per-lineal-inch (ppi), that helps give it a better noise-absorbing performance than conventional foams. It is also a more consistent absorber and has a narrower range of variance than conventional foams.


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