Mold fouling during rubber vulcanization. From: Rubber World | Date: December 1, 2004| Author: van Baarle, B. | COPYRIGHT 2004 Lippincott & Peto, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group.Copyright information

Mold fouling is a commonly seen phenomenon in the rubber processing industry. During vulcanization, a layer is deposited on the wall of the mold that builds up gradually with each subsequent production cycle. A previous article (ref. 1) discussed the investigation of different factors that can cause mold fouling. Here it was found that for the different sulfur (and zinc oxide) containing polymeric rubber compounds, zinc sulfide (ZnS) was the most disturbing reaction by-product of c...

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