Zeiger to Mold an Automotive LED Headlamp Optic at NPE2018. Zeiger Industries will be showing not only our latest ZP screw and check ring valve designs for processing engineering grade polymers but we will also be running a complete LSR production cell at the show. Zeiger Industries booth W4143 will be molding an automotive LED headlamp optic made from Dow’s DOWSIL MS 4007 Moldable Silicone on a Milacron – FANUC, Chain Conveyors ...