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Extreme Coatings

Call: 888-367-2569

Plastics Industry Association Member

Engineered Surfaces to Extend Service Life and Performance

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      • Full Encapsulation of Feedscrews
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      • Feedscrews, Mixing Rotors, etc.
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  • HVOF Thermal Spray
    Extreme Layer of Protection
    High Performance Formulas
  • Oil and Gas Industry
    Reduce Replacement Costs for Mud Rotors
    HVOF CPR delivers more abrasion and corrosion resistance than hard chrome plating (HCP) - even in high chloride environments
    Read More
  • Read More
    Twin Feedscrews
    Our high percentage carbide layer can provide from two to four times more wear life depending on fill loading.
    Plastic Injection Molding
  • Single Feedscrews
    Read More
    Feedscrews
    Our coatings are perfect for injection molders and extruders when processing fiberglass, calcium carbonate, titanium dioxide and metals, ceramic or other highly abrasive fillers.
  • Mixer-Extruders
    Continuous Mixing Rotors
    Our C1000 tungsten carbide has been used as chrome replacement in aggressive applications. C1000 doubles the working life of rotors compared to hard chrome plating.
    Read More
You are here: Home / Our Processes / Encapsulation Protection / Full Encapsulation of Feedscrews

Full Encapsulation of Feedscrews

Extreme Coatings’ Full Encapsulation option provides the ultimate in abrasion and corrosion resistance for single and twin feedscrews. This option covers the tops of flights, flight sides and the root/core of the entire feedscrew.

The low heat input during our coating process (350F, 175C) ensures no distortion and minimizes costly straightening or machining requirements. Our coatings are routinely applied over standard hard facing alloys.

Our standard coating thicknesses are .005” (.125 mm) for screws of diameter 36 mm and below and .010” (.25 mm) for larger feedscrews. Diamond polishing after coating provides a super 6-10 RMS (uinch) (.2-.4 Ra Umeter) mirror surface finish. This surface finish aids in purging and reduces the tendency for material to build up.

Full encapsulation is recommended when processing fiberglass, calcium carbonate, titanium dioxide, metals, ceramic or other abrasive fillers.

The porosity of our finished coating layer is very low, less than 1 percent. This low porosity and the inert nature of the coating materials provides a very corrosion resistant surface. For hard to process materials such as fluoropolymers and CPVC, carbide coating provides a less expensive alternative to high nickel alloy steels.

Remember, we guarantee at least double the life of any carbide encapsulated feedscrew.

Cut-away Feedscrew showing our coating layer uniformity

Click here to increase the life of your mud rotors
Click here to increase the life of your extrusion & feed screws
Extreme Coatings

2895 46th Ave N - St. Petersburg, FL 33714

ISO 9001 2015 Certified by WCS ISO 9001:2015 Certified by WCS

888-367-2569

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MENU
  • Home
  • About Us
    • Shows and Events
    • News
    • Houston Facility
  • Our Processes
    • High Velocity Thermal Spray
    • The Process
    • Encapsulation Protection
      • Full Encapsulation of Feedscrews
      • Partial Encapsulation of Feedscrews
    • Chrome Plating Replacement
      • Feedscrews, Mixing Rotors, etc.
      • Mud Rotors and Downhole Tools
  • Applications
    • Plastic & Rubber Industries
      • Feedscrews
      • Parallel Twin Feedscrews
      • Co-Rotating Twin Feedscrews
      • Ultrasonic Welding Horns
      • Cushion Master
      • Continuous Mixing Rotors
      • Mixer Bodies
      • Extrusion Dies, Die Plates, Sheet Dies
      • Granulator Knife Blades
      • High intensity Mixing Blades
      • Elbows For Pneumatic Conveying
      • Spin Dryer System
    • Oil & Gas Industry
      • Downhole Mud Rotors
      • Mandrels
    • Motorsports Industry
    • Marine Anti-Fouling
  • Technical Resources
    • Coating Formulas
      • Tungsten/Chromium Carbide
      • NiBoride
      • Other
    • Test Results
      • Abrasive Wear Test ASTM G65
      • Adhesive Wear Test ASTM G77
    • Case Studies
    • FAQs
    • Company Literature
    • ROI
    • Videos
  • How to Buy
    • Our Distributors
    • Purchase Encouragement Program (PEP)
    • Warranty
  • Contact Us
    • Application Profile Form
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