Canadian Plastics

Reduce density, not properties, of polyurethane

The NovaForm and VakuForm technologies from Hennecke Machinery allow polyurethane foam molders to reduce molded foam densities by up to 20 percent, without any significant change in the overall charac...

January 1, 1999   Canadian Plastics



The NovaForm and VakuForm technologies from Hennecke Machinery allow polyurethane foam molders to reduce molded foam densities by up to 20 percent, without any significant change in the overall characteristics and physical properties of the final part.

NovaForm uses carbon dioxide as an environmentally friendly blowing agent for discontinuous pouring operations. Because the foam froths as it leaves the mixhead, the technique permits foaming of large and very complex parts where small pinholes are not a critical quality criterion.

VakuForm technology is an open-pour process. After the polyurethane is poured, the mold is closed and a vacuum is created in the mold cavity. This significantly reduces the mold’s internal pressure and allows the reaction foam to rise more freely.

Bayer, Hennecke Machinery 800/622-6004

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