Canadian Plastics

RIM molding cuts labor time in half

Using a polyurethane reaction injection molding process, a manufacturer of institutional food service carts has reduced the labor time for each cart by 50 percent compared with similar stainless steel...

November 1, 2000   Canadian Plastics



Using a polyurethane reaction injection molding process, a manufacturer of institutional food service carts has reduced the labor time for each cart by 50 percent compared with similar stainless steel carts.

The RIM process encapsulates metal tubes, rods and other hardware during the molding operation.

Aladdin Temp Rite’s new Excell-CV series of re-thermalization carts is manufactured from Bayer’s Baydur 726 IBS (interactive blowing system) and Bayflex 110-80 polyurethane RIM systems.

“We cut the labor time to make a single cart from 8 to 10 hours with stainless steel down to three to four hours with polyurethane RIM,” says David Wright, senior project manager for Aladdin.

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Other benefits of using polyurethane RIM identified by Wright include: lighter weight, fewer parts, chemical resistance, molded-in color, easier serviceability, and impact and damage resistance.

Wall thickness in some parts is purposely varied from 0.250 inches where little strength is needed, to 0.625 inches where strength is critical.

Bayer Corp. 800/668-2554


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