Material Combinations


Deringer-Ney is a leading producer of insert moulded components utilized in a variety of medical and industrial applications, e.g. in low current electrical contacts for switches, precision potentiometers and electrical commutation (slip ring) products. These stamped and insert molded components typically must exhibit a combination of extremely high reliability, precision tolerances, excellent corrosion resistance and electrical performance as well as economic benefit that is suitable for many of the high volume applications.

In the case of medical applications, these components are produced from custom biocompatible alloys of Platinum, Gold, and Palladium designed and produced by Deringer-Ney. 


Da/Pro Rubber has expertise in both rubber molding and plastic moulding. Below are a few pointers when considering rubber to plastic moulding.

  • Rubber moulding requires very high temperatures and most plastic components would melt at these temperatures. Rubber-to-plastic moulding requires a plastic insert made with a high temperature plastic. 
  • Rubber-to-plastic moulding is used in many valve and diaphragm applications where rubber alone would not allow the structural integrity required for the valve or diaphragm. Overmoulding rubber-to-plastic incorporates the flexibility, toughness, solvent and chemical resistance of rubber (is lightweight) and has cost savings of plastic.
  • When designing parts with a rubber-to-plastic moulding requirement, it is best to design the rubber overmould to completely cover the plastic insert. This will help prevent deformation, discoloration of the plastic insert and excessive flashing of the rubber overmould.


Consistent rubber metal bonding parts are easily produced using the Da/Pro Process for rubber-to-metal bonding. Rubber-to-metal products are molded to meet stringent customer design requirements and quality demands. The elastomer is attached to the substrate by mechanical and/or chemical bonds. In chemical bonding, the rubber is vulcanized and rubber bonded directly to the metal or plastic substrate during the molding process.


One of Deringer-Ney’s core technologies is the joining of dissimilar metals, especially precious metals.  Deringer-Ney's metal joining processes include laser welding, resistance welding, brazing and plasma welding - both as automatic (high volume) as well as semi-automatic processes (for lower volumes).  Secondary operations are available.

Cadence integrates complex welding capabilities into a unique business process, providing endless possibilities for all of your advanced welding needs. With more than 3 million complex laser welded assemblies produced every year, Cadence is one of the leading welding partners in the industry.

For the joint of two metal components we have access to several technologies of our partners Deringer-Ney and Cadence:

  • Joining (of dissimilar metals)
  • Welding