Bellignat, France-based injection molding machine producer Billion SAS included use of liquid silicone rubber in one of several multi-component for multi-innovation machine demonstrations running on the company's booth at the K 2016 fair in Düsseldorf, Germany.
This involved an example of one-shot Multitube technology to produce a three-component injection molded hard/soft air intake part. The soft gray elastomeric component used to overmold a gasket onto the black plastic base of the air intake consisted of the Elastosil LR 3023/60A/B grade of opaque LSR from Wacker Chemie AG in Burghausen, Germany.
As this paste-like, easily pigmentable two-component compound with 60A Shore hardness has low compression set, Wacker says it does not need post-curing. Wacker refers to the material's “extremely short curing times and excellent coolant resistance.” Other properties include 300 percent elongation at break, 5.5 N/mm 2 tensile strength and 15 N/mm tear strength.
For a full version of this and other stories, check out Crain's new publication LSR World.