StarGuard is guaranteed to last longer.  Our Encapsulation Process uses emerging thermal spray technologies to apply extreme wear and/or corrosion resistance to your injection molding feed screws. The entire screw surface is coated, including the root, flight sides and flight lands – so there’s no additional chrome plating, flame hardening or nitriding necessary.  No chrome plating, flame hardening or nitriding required.  Backed by a Double-Life Warranty.*

StarGuard provides:

  • Crack-free and porosity-free protection
  • Hardness values over 60Rc
  • Thicknesses from .005” to .030”
  • A variety of options to suit your process

Choose the Best Encapsulation for Your Process

StarGuard – SG-1 88% Tungsten Carbide (Wc), 12% Cobalt (Co) matrix

  • High abrasive wear applications (fiberglass, mineral and magnetic filled polymers)

StarGuard – SG-2 90% Tungsten Carbide (Wc), 10% Nickel (Ni) matrix

  • High abrasive wear applications with improved corrosion resistance (hydrochloric acid)

StarGuard – SG-4 75% Chrome Carbide (Cr2C3), 25% Nickel Chrome (NiCr) matrix

  • High corrosion, high temperature and high abrasion applications (fluoropolymers, bromine and PEEK)

StarGuard – SG-9 88% Tungsten Carbide (Wc micron and nanometer particles), 12% Cobalt (Co) matrix

  • High abrasive wear applications with sub-micron particle abrasion (Ti02, Silica)

*See brochure for guarantee details