What is VaporPhase?

Sigma VaporPhase is a unique, high-rate, physical vapor deposition process for producing functional organic layers. It is a multi-step, inline, process that involves vaporization, condensation, and polymerization of liquid monomers, oligomers, and other compatible materials that are selected depending on the application and desired functional effect. The VaporPhase process allows for a variety of layer compositions and morphologies ranging in thickness from a few, to a few hundred, nanometers.

Conformal Coatings
Layers that replicate surface topography and conform to substrate porosity.


Surface Leveling
Pinhole-free, smoothing layers for enhanced optical and moisture/gas barrier properties.

Controlled surface roughness for diffusing light and creating super-hydrophobic effects.


Multi-Layer Composite
Alternating organic/inorganic layers for super-high barrier films, energy storage devices, performance effect pigments, and meta-materials.

Fiber Encapsulation
Encapsulation of synthetic and natural fibers for producing fabrics with advanced functional effects.

Mono-Molecular Graft
Functional molecules are covalently attached to fiber/film surfaces for superior functionality and durability.

VaporPhase Functional Materials

VaporPhase technology, by itself, is very effective in rendering materials hydrophobic, oleophobic, and hydrophilic. Combining VaporPhase layers with other polymers, metals and metal oxides to create multi-layer structures - this is where the technology truly shines in creating products that are truly unique.

Hydrophobic / Oleophobic
Deposition of C6 (or smaller) fluoro-monomers and/or hydrophobic hydrocarbons for excellent repellency without impacting hand, breathability, or other substrate properties.

Hydrophilic / Tuned Surface Chemistry
Permanent hydrophilicity ◊ Tuned surface chemistry for print adhesion and general bond promotion.

Optical Coatings
Corrosion stable IR reflective layers ◊ Deposition of thin film organics with RI ranging between 2.45 and 3.00 ◊ Engineered Etalon films or pigments.   


Dielectric Materials
VaporPhase coatings for producing high performance dielectrics to replace conventional olefin films used in capacitor applications.

Moisture and Gas Barrier
Use VaporPhase coatings to enhance barrier performance for flexible packaging and electronics.

Using VaporPhase layers, combined with inorganic layers, to create anti-microbial surfaces on almost any substrate.

Key Markets and Applications

Sigma focuses most of its attention on the market/application areas listed below; but, we are still scratching the surface in terms of where VaporPhase technology can add value. If you have an interest in an area not included below... Let's work together to see if VaporPhase might be a potential solution.