Traditional elastomers are thermoset materials. Once the materials go through a curing process they cannot be re-melted or re-formulated. Thermoplastic materials are resins that will melt at a specific temperature and be solid at temperatures below that temperature. The material will continue to become viscous at temperatures above its melt temperature. R&F has used different types of thermoplastic materials and loaded them with different magnetic fillers. These include carbonyl iron powder, iron silicide and ferrites. A twin-screw extruder is used to melt the thermoplastic, mix in the magnetic filler and extrude the loaded compound to a specific shape. R&F has used polyamide and thermoplastic urethane resins to produce several ...
R&F Products loads liquid resin systems with magnetic fillers. Resins used include silicone, urethane, polysulfide and epoxy. Several products are produced from these resins including Doctor Bladed Sheets and Tape, Cast Components, Paints.
R&F Products’ parent company, Laird Technologies, routinely extrudes several geometries of conductive elastomers. R&F uses this capability to extrude tubing, gaskets and other geometries of its magnetically loaded material.
