Applications: BX-51 is used to make molds of masters that contain minor undercuts. BX-51’s physical properties make it ideal for making concrete patterns and formliners. BX-51 has been formulated to reduce shrinkage. Characteristics: BX-51 is a two-part polyurethane molding system. BX-51 is mixed 100:97 by weight (or 1 Part-A Iso to 1 Part-B Curative by volume) and cures at room temperature. BX-51 cures to a medium hardness, Shore A 51± 2, gray rubber. Ultimate properties are obtained after 3-4 days of room temperature cure. Cure can be accelerated with heat (130-150°F for 12-16 hours) but a slightly harder polymer (53 +/- 2 Shore A) and slight shrinkage will be obtained. Information provided by BCC Products, Inc. |