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Hydrophobic and Anti-Fouling Coating Solutions

Improve Process Efficiency and Longevity While Reducing Costs

SilcoTek Hydrophobic and Non-Stick Coatings Improve Performance and Reduce Maintenance in Fouling-Prone Applications

SilcoTek® (chemical vapor deposition CVD) coatings resist the buildup of unwanted materials like scale deposits, carbon, and contaminants while resisting corrosion. Clogging, fouling, coking, caking, and other sticking issues require process shutdowns for maintenance, drastically increasing costs. SilcoTek coatings like Dursan® reduce friction and stiction while improving moisture and corrosion resistance. SilcoTek coatings bond to process surfaces and act as a non-stick, hydrophobic barrier that improves surface performance. Customers choose SilcoTek coatings to improve the performance of heat exchanger tube bundles, fuel systems, process sampling flow paths, and more. 

dust and particulate

Prevent Fouling

Even under extreme pressure and temperature, SilcoTek coatings significantly improve corrosion resistance to increase process performance and efficiency while significantly reducing maintenance.

  • Micron-thick coatings prevents fouling without any change in heat transfer coefficient
  • Highly hydrophobic, non-stick coating significantly improves ease of surface cleaning
  • At least 2x improved wear resistance over stainless steel
  • Improved corrosion resistance to aggressive acids and bases
See The Data

Change in differential pressure/unit flow over time. Dursan-coated metal filters reduced fouling caused by hot gases, reducing power demand and lowering costs in a large-scale power generation application. Dursan filters cut pressure buildup by 50% and lasted nearly 2× longer than uncoated filters.

Dursan fouling no source
hydrophobic

Create Hydrophobic Surfaces

SilcoTek coats metal, glass, and ceramic surfaces to improve their resistance to water and other liquids, rendering them hydrophobic. Hydrophobic surfaces repel unwanted media, improve cleanability, and make processes run more efficiently. Notak 2000 is SilcoTek’s most hydrophobic surface treatment, approaching “superhydrophobic” water contact angle values. Dursan is a versatile ceramic-like coating offering outstanding hydrophobicity in addition to corrosion resistance and durability. Hydrophobic coatings from SilcoTek:

  • Prevent product contamination
  • Improve process analyzer performance
  • Increase corrosion resistance
  • Reduce purge and calibration time
  • Eliminate instrument burn-in and priming  
Learn More

SilcoTek offers a variety of silicon-based coating and surface treatment processes with different surface energies. All except Siltride 1000 create a more hydrophobic surface than untreated stainless steel. Siltride 1000 provides a hydrophilic surface, which is desirable in specific applications such as protein analysis, medical devices, and heat transfer.

Surface Energies - hydrophobic
plastic mold

Improve Release 

SilcoTek's silicon CVD coating technology can be applied to complex or narrow part configurations without impacting even extremely tight tolerances, such as precision needles used for biological sampling and analysis. Proteins and other components of blood samples stick to stainless steel at a microscopic level, a phenomenon known as non-specific adsorption (NSA) Non-specific adsorption leads to inaccuracies with critical diagnostic analyses, a problem that coatings like Dursan solves:

  • Reduce non-specific adsorption of proteins in clinical diagnostic and chromatography
  • Dursan is NSF certified, FDA / 21 CFR compliant and has passed the following biocompatability tests: USP Biological Reactivity Tests, In Vivo / USP Plastic Class VI & Cytotoxicity Study Using the ISO Elution Method (performed by NAMSA). 
See The Data

Dursan coated stainless steel bioprocessing and sampling equipment resists the adsorption of biological media and pharmaceutical ingredients. The images above show a wash buffer rinse (WB1 rinse) completely eliminating proteins from a Dursan-coated surface, whereas a fluoropolymer, AF1600, is damaged by the rinsing process. Dursan is twice as wear resistant as stainless steel.

Release

Related Resources

Data Sheets and Brochures

Dursan® Data Sheet

Case Studies

Lubricious Dursan® Improves VERIS Verabar® Sensor Lifetime in Corrosion- and Fouling-Prone Power Application

Videos and Webinars

Solving Surface Fouling with New Non-Stick CVD Coatings

Technical Publications

SilcoTek CVD Coatings for Improving Heat Exchanger Performance

Case Studies

Preventing Adhesion in Demolding on Stainless Steel and Glass with Dursan® Technology

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