High Purity, Temperature-Stable Coatings with Excellent Acid Corrosion Resistance


What is Silcolloy®?

Silcolloy coatings offer the highest temperature stability of all SilcoTek® solutions while simultaneously preventing corrosion and contamination from metal, glass, and ceramic substrates. These coatings are made up of several layers of high-purity silicon (Si), the same material used to make semiconductors, which provides a dense film that effectively shields coated parts from their process environment. Silcolloy is widely used as a solution to improve the chemical compatibility of various materials and help stainless steel perform like corrosion resistant superalloys, creating significant cost savings for customers in semiconductor, laboratory, energy, and many other industries.

How is Silcolloy Applied to Your Parts?

Like all SilcoTek coatings, Silcolloy surfaces are applied using SilcoTek’s proprietary chemical vapor deposition (CVD) technology. Unlike typical liquid spray or dip coating methods, CVD is a completely non-line-of-sight process that uses gases at high temperatures to produce ultra-thin coatings which bond molecularly to the part substrate, creating superior adhesion compared to any other coating. This also means that even sub-micron sized openings, sharp edges, flexible components like bellows, and high aspect ratio flow paths are completely coated without requiring design changes.

Want to know if Silcolloy is right for your application? Contact our Technical Service Team.


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Applications & Benefits



Improve yield and longevity by preventing corrosion and metal ion contamination.

Commonly coated parts:

  • Etch weldments and other gas delivery components
  • Epitaxy chambers and ancillary parts
  • CMP rings
  • Exhaust scrubber parts
  • Ozone generation and analytical instrumentation flow paths

Chemical Processing

Enhance component lifetime and performance in high temperature or corrosive environments.

Commonly coated parts:

  • Valves and fittings
  • Tubing
  • Filters
  • Small heat exchangers
  • Reactors and chambers

Power & Energy 

Increase efficiency and output by preventing coking, fouling, and acid corrosion.

Commonly coated parts:

  • Downhole sampling tools
  • Process and sample transfer tubing
  • Coal gasification filters
  • Pump components
  • Instrument probes and sensors

Your Application?

We assign an expert team to every customer project and sometimes customize standard coatings to meet unique needs.

Don’t see your application?

Contact our coating experts to discuss your requirements and try our coatings at little or no cost to you.

Silcolloy Coated Product Examples



Silcolloy 2000 Data Sheet

Data Sheet:

Silcolloy 2000 Properties and Performance

Turner Designs CS

Case Study:

Improving Corrosion Resistance in Subsea Hydrocarbon Sampling

WP controlling corrosion

White Paper:

Controlling Corrosion and Contamination in Semiconductor Manufacturing 

Webinar Corrosion IMG


Unleashing the Potential of Stainless Steel with SilcoTek Corrosion Resistant Coatings

Comparison Giude Chem Compat

Comparison Guide:

Chemical Compatibility of SilcoTek Coating Families