Extreme Coatings

2895 46th Avenue North
St. Petersburg, FL 33714-3811
United States




8am - 5pm est


Plastics Industry Association


Auxiliary Equipment / Components //

Feed Screws
Injection Screws

Molds / Dies / Tooling //

Surface Hardening Tools

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PS Product Showcase


Extreme Coatings' process utilizes emerging thermal spray technologies to apply extremely wear resistant and/or corrosion resistant protective coatings to virtually any size injection molding or extrusion feed screw. Our process provides crack free coatings with hardness values ranging from 30- 70 on the Rc scale in thickness from .001-.030.

Proprietary compositions of various carbides, ceramics, and alloys are incorporated to achieve abrasion and corrosion resistant characteristics unmatched by any of the conventional hardfacing alloys popular today. This process completely eliminates the necessity for chrome plating, flame hardening, or nitriding, as the entire screw surface is coated, including the root, flight sides and flight lands.

The ASTM G-65 wear test simulates low-stress sliding abrasion and provides a comparison between wear resistant materials. Volume loss is calculated and used to compare these materials. Our tungsten carbide is more than three times more wear resistant than the next best material tested. These test results give us the confidence to guarantee AT LEAST double the wear life of our carbide encapsulation over your current feed screw.

Tool steels such as D2, CPM-9V or 420V are often used as substrate material for feedscrews processing abrasive materials. These steels provide improved wear resistance compared to an unprotected feedscrew and are often available from stock. The unique alloy chemistries that give tool steels their wear resistance also make these feedscrews difficult or impossible to repair once they are worn.

FliteGuard® offers great value for repair of tool steel feedscrews. Tool steel screws that are worn up to .025” (0,6 mm) overall can be refurbished with a thermal spray application of tungsten carbide. This is a very economical alternative to screw replacement. Not only will a screw be returned like new, tungsten carbide will wear as much as three times longer than the original material!

Its easy to get a FliteGuard® quote. Your screw supplier can quickly determine if a feedscrew is a good candidate for repair. Send them your worn tool steel screw and request the FliteGuard® option. There is nothing to lose and much to gain from a longer lasting repaired feedscrew.

Extreme Coatings high velocity thermal spray coatings of tungsten carbide provide exceptional wear and corrosion resistance to any injection molding or extrusion feedscrew. The finish coating layer is crack-free with hardness from 65 to 72 HRC. Our mirror polish surface finish has a low COF which improves screw cleaning and this hard layer will not scratch. We engineer, design and manufacturer coating solutions to improve a components (part) performance and service life. For example with our formulas applied to feedscrews and mixing rotors they can last 2, 3 and 4 times longer. Come see why we coated over 42,000 parts!

Cutting Edge Wear Resistance Technology for the Plastic & Rubber Molding Industries

Our high percentage of hard tungsten carbide particles provide maximum abrasion and adhesive wear resistance.

A 99% dense coating layer provides exceptional corrosion resistance and our mirror surface finish ensures easy purge clean between material changes.

Double the life of any feed screw! Guaranteed!!

Get the most out of your equipment with EXTREME COATINGS