A new two-component urethane system is said to allow casting parts ranging from grams to tons with greater ease and greater resulting toughness and durability than are possible with conventional hot-cast elastomers.

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A new two-component urethane system is said to allow casting parts ranging from grams to tons with greater ease and greater resulting toughness and durability than are possible with conventional hot-cast elastomers. Adiprene Duracast from Chemtura Corp., Middlebury, Conn., uses a specialty pure MDI and polyether, polyester, or polycaprolactone polyols. New proprietary Duracure curative boosts performance through better phase segregation than conventional hot-casting curatives like MOCA and butanediol (BDO). The heat-activated curative is “blocked” below a certain reaction temperature, which allows longer pot life plus short demold times, says Chemtura. Absence of TDI or MOCA reportedly adds potential for better long-term price stability and safer working conditions. Also, Duracast does not require major changes in mixing. 800-243-2650 • www.chemtura.com/urethane

Chemtura
199 Benson Rd Middlebury, CT 06749
Phone (203) 573-3305 Fax (203) 573-3541