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Our newest coating! A durable, inert, corrosion resistant coating that is harder than steel and highly resistant to acid and base attack. Ideal for valves and components that require a tough scratch resistant coating. Dursan is a hydrophobic surface that strongly repels water.
The ultimate in inert coating technology. Eliminate surface interaction in process, analytical, oil and gas sampling. Allow for fast accurate sampling the first time, every time. Improves test efficiency while reducing overall sampling/analytical cost.
A corrosion resistant coating that increases the lifetime of system components. Improve the corrosion performance of stainless steel, eliminate the use of costly high performance alloys while reducing component corrosion.
A non-stick coating designed to reduce the onset of carbon coking and fouling on stainless steel. Extend maintenance cycles in refining and petrochemical operations, improve engine and fuel delivery performance by reducing carbon build-up on fuel injectors and combustion surfaces.
A low outgassing, rapid pump down, high purity coating designed to improve ultra high vacuum system performance. Reduce vacuum pump-down cycle time, improve product yield by eliminating surface impurities.

Semiconductor Applications

In many purity-critical applications the potential for contamination created by contact of the process stream with sample transfer components such as tubing, fittings, and valves is a major concern. For example, the slightest contamination in gases used in manufacturing semi-conductor devices can create high failure rates in end products.

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SilcolloyTM and SilcoGuardTM treatment can eliminate interactions between process gases and transfer system components. Our extensive evaluations in the fields of passivation, corrosion resistance, and ultra-high vacuum show that these treatments eliminate outgassing of impurities into the sample stream and will not react with process stream components.

SilcolloyTM treatment is compatible with many chemicals used in the semiconductor industry.


Chemicals List

Chemical Compatibility Rating
    Excellent Good Poor
2-Propanol C3H8O •    
Acetic Acid C2H4O2 •    
Acetone C3H6O •    
Ammonia NH3   •  
Ammonium Flouride NH4F     •
Ammonium Hydroxide NH4OH •    
Argon Ar •    
Arsine AsH3 •    
Boron Tribromide BBr3 •    
Boron Trichloride BCL3 •    
Carbon Dioxide CO2 •    
Carbon Tetraflouride CF4 •    
Chlorine CL •    
Dichloromethane (methylene chloride) CH2CL2 •    
Disilane Si2H6 •    
Helium He •    
Hexafluoroethane C2F6 •    
Hexamethyldisilazane        
HMDS C6H19Si2N •    
Hydrochloric Acid HCL •    
Hydrofluoric Acid HF     •
Hydrogen H2 •    
Hydrogen Bromide HBr   •  
Hydrogen Peroxide H2O2   •  
Methanol CH3OH •    
Nitric Acid HNO3 •    
Nitrogen N2 •    
Nitrogen Trifluoride NF3   •  
n-Methyl 2-Pyrrolidone C5H9NO •    
Octafluorocyclobutane C4F8 •    
Oxygen O2 •    
Ozone O3 •    
Phosphine

PH3

 •    
Phosphoric Acid H3PO4 •    
Phosphoric Oxychloride POCL3   •  
Potassium Hydroxide KOH     •
Silane SiH4 •    
Sulfur Hexafluoride SF6   •  
Sulfuric Acid H2SO4     •
Tungsten Hexaflouride WF6   •  
Water H2O •    
DI Water H20   •  

SilcoTek Surface Treatments
SilcoTek passivation and surface protection layers are deposited using a chemical vapor deposition (CVD) process in which the item to be treated is heated under vacuum. Our current capacity enables us to treat items up to 6 feet long, or continuous lengths of coiled tubing exceeding 2000 feet (600 meters). Items that can be evacuated, such as gas chambers, can have a volume of up to 43 cubic feet.

When the item has been heated to the appropriate temperature, the reacting gases that form the protective surface are introduced, depositing a durable, amorphous silicon layer that grows and overlays itself multiple times. The reaction layer penetrates into the lattice of the treated piece and binds solidly. Consequently, it is possible to work a piece, such as bending a length of treated tubing, without creating cracks, flakes, or other flaws in the layer. By controlling the variables in the process, we control the layer type and thickness. Layer thickness ranges from 0.03µm to 5µm, controlled to our specifications.

SilcoTek's surface treatments are:

SilcoNert™ 1000 (Silcosteel®)
A general-purpose passivation layer for steel and stainless steel. U.S. patent 6,511,760.

SilcoNert™ 2000 (Siltek®/Sulfinert®)
The ultimate passivation of treated surfaces, from glass to high nickel alloys of steel. A required treatment for metal components when analyzing for parts-per-billion levels of organo-sulfur compounds & mercury. U.S. patent 6,444,326.

Silcolloy™ 1000 (Silcosteel®-CR)
A corrosion resistant layer that increases the lifetime of system components in acidic environments containing hydrochloric acid, nitric acid, or seawater. U.S. patent 7070833.

SilcoKlean™ 1000 (Silcosteel®-AC)
Dramatically reduces carbon buildup on stainless steel components. U.S. patent 6,444,326.

SilcoGuard™ 1000(Silcosteel®-UHV)
Greatly reduces outgassing from components of ultra-high vacuum systems. U.S. patent 7070833.

All coatings are applied to customer supplied items on a custom basis—see Custom Coating Services. To request a quote, click here.