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CertainTeed taps metallocene for compression packaging

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Compression packaging, while unusual for mop heads, has long been used for packaging building insulation materials. Valley Forge, PA-based CertainTeed Corp., one of the leading manufacturers of fiberglass insulation (or as CertainTeed refers to it, "fiber glass"), has compression-packed its products in linear low-density polyethylene film for years.

In early '97, CertainTeed worked with its packaging supplier, Union Camp Corp. (Spartanburg, SC), to experiment with new metallocene-catalyst-based PE films, which were said to permit thinner gauges without a loss in strength. Extensive testing confirmed this to be true. "We were able to downgauge by half a mil with no loss in physical properties," says Ken Knapp, residential product development manager. "We now get as low as two-and-a-half mils, versus three before." Some of the company's insulation products are wrapped in thicker films; those too were reduced by half a mil. Today, the company is three-fourths of the way through converting all of its packaging to the metallocene films. CertainTeed believes it is the first insulation manufacturer to use metallocene-based packaging films.

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