Carbide/Cermet -
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Cermet/Carbide Coating |
Characteristics |
|
Bimetallic carbides |
Wear, corrosion and oxidation resistance |
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Chromium carbide |
Protection from elevated temperature wear |
|
Wear and some corrosion resistance |
|
|
CoreGard™ coatings |
Hard, wear-resistant inner diameter protection |
Ceramic -
|
Ceramic Coating |
Characteristics |
|
Aluminum oxide |
Economy wear and corrosion protection |
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Chromium oxide |
Economy wear and corrosion protection |
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Zirconium oxide |
Thermal barrier protection and rub resistance for compressor and turbine blade tips |
|
Zircoat® and Zircoat® HP coatings |
Thermal barrier protection and solid particle erosion resistance; accommodates expansion and contraction of underlying metal substrates |
Ceramic-Metallic (Cermet) -
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Cermet Coating |
Characteristics |
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Aluminum-ceramic includes SermaBond®, SermaGard®, SermaLube® and SermeTel™ coatings |
Aqueous corrosion resistance; often used as corrosion-resistant primer under other sealers; chrome-free alternative available |
|
Aluminum-ceramic fouling-resistant coating systems includes SermeTel™ 2F-1 and SermeTel™ 5380 and their chrome-free derivatives |
Smooth coating limits fouling with mineral deposits or organic polymers in steam turbines and compressors; offers exceptional resistance to aqueous corrosion |
|
Aluminum-ceramic hardened coating system including SermaWear™coatings |
Optimal resistance to hard particle and aqueous corrosion |
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Aluminum-ceramic polymer sealed coating system including SermaLon™and ShorCoat™ coatings |
Rain- and erosion-resistant coating for aluminum alloys; resistance to aqueous corrosion; replacement for hard anodizing on aluminum lipskins and wing slats used in aviation |
|
Aluminum-ceramic sealed coating system including SermaSeal®, SermeTel™ 5380 and its chrome-free derivative |
Resists aqueous corrosion on aluminum alloys and high-strength low-alloy (HSLA) steel alloys; replacement for cadmium plating on steel; recommended for acidic SO2/CO2 environments;chrome-free alternative available |
|
Aluminum-ceramic smooth sealed coating system including SermaFlow™ and SermeTel™ 5380 DP |
Aerodynamic coating provides resistance to aqueous corrosion and can replace diffused nickel-cadmium and aluminum AS-12 on gas-path components |
Cermet/Diffusion -
|
Cermet/Diffusion Coating |
Application Process |
Characteristics |
|
Diffused platinum aluminide |
Pack deposition |
Excellent oxidation resistance |
|
Diffused silicon-modified platinum aluminide |
Slurry deposition |
Excellent oxidation and sulfidation resistance |
Fluoropolymer -
|
Fluoropolymer Coating |
Characteristics |
|
Food applications |
Release properties suitable for food contact |
|
Industrial applications includes SermaShield™ coatings |
Chemical resistance; effective alternative to sheet lining, explosive-bonded tantalum, glass linings for certain chemical services |
|
Blue Armor® fluoropolymer |
Seamless system based on ECTFE; modified for improved processing and abrasion resistance; reliable alternative to glass linings and exotic alloys |
Metal/Alloy -
|
Metal/Alloy Coating |
Characteristics |
|
Aluminide including SermAlcote™ coatings |
Hot corrosion and oxidation protection |
|
Aluminum |
Bond coat and corrosion barrier |
|
Cobalt |
Bond coat and corrosion barrier |
|
Copper |
Anti-fretting and conductivity |
|
Iron |
Buildup or laser cladding applications |
|
Molybdenum |
Corrosion protection |
|
Nickel |
Bond coat, corrosion resistance and high-temperature protection |
|
Platinum aluminide |
TBC bond coat and oxidation resistance |
|
Platinum silicon aluminide |
Hot corrosion and sulfidation resistance |
Metal/Diffusion -
|
Metal/Diffusion Coating |
Characteristics |
|
Diffused chromium |
Hot corrosion resistance on nickel alloys |
|
Diffused silicon-modified aluminum slurry including SermaLoy™ and its chrome-free derivative |
Uniquely resistant to both low- and high-temperature hot corrosion on nickel, cobalt alloys and certain stainless steels; can replace chrome-aluminides in high-sulfur environments |
Metal/MCrAIY -
|
Metal/MCrAIY Coating |
Characteristics |
|
Cobalt + CrAlY |
Ductile metallic bond coat suited for industrial gas turbines |
|
Nickel + CrAlY |
Ductile metallic bond coat used primarily in aero gas turbines |
Polymer -
|
Polymer Coating |
Characteristics |
|
Low-friction polymer |
Lower friction for fretting and galling resistance on slide contact surfaces; alternative to hard chrome plating |
|
Reactive inhibited metal-filled polymer coating systems |
Corrosion and fouling resistance for magnesium and aluminum alloys; can be applied over anodizing; replacement for epoxy sealers |