Thanecure ZM is a cure activator for sulfur cured Millathane® polyurethane rubber. It consists of a partial complex of zinc chloride and MBTS. The improvement in the physical properties of Millathane E-34 is shown in the table below. Increasing the amount of Thanecure increases the rate and state of cure and improves the compression set resistance.

For the most practical applications, 1.0 part of Thanecure ZM provides a good balance between cure rate and processing safety. As the concentration of Thanecure ZM increases above 1.0 part, cure rate improves only slightly with reduced processing safety.

If it becomes necessary to increase scorch time for greater processing safety, MBT level can be reduced to 1.0 phr without changing the amount of Thanecure ZM.

Zinc oxide is not compatible with some polyester polyurethane rubber. Thanecure ZM, which contains active zinc, needs to be incorporated to insure proper state of cure. Thanecure ZM is used to cure both polyester (e.g., Millathane 76, Millathane HT) and polyether (e.g., Millathane E34, Millathane CM) and other types of sulfur curable polyurethane rubber.

EFFECTS OF THANECURE ZM ON PHYSICAL PROPERTIES

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Customer Service at 1-800-237-7634, ext. 1348 or 1-727-540-1348

*Caytur is a registered trademark of Chemtura Corporation, formerly Uniroyal Chemical Co.