A new tier of elastomeric connector products is available with proprietary Z-Alloy material. The connectors combine the reliability of solid metallic contacts with the flexibility of the silicone support material into one economical package.  Are corrosion-resistant and offer a cost savings compared to traditional gold-plated contacts.
 
Standard connectors feature .002" (0.05 mm) wide conductors on .004 " (0.1 mm) centers for a conductor density of 250 per inch. Despite the fine geometry of the contacts, the material is said to be strong and durable enough to withstand repeated uses and will not break or fracture. 
 
Z-Axis Connector Co., zaxisconnector.com