Spray Assisted Layer-by-layer Coating Assembly

  • Precision Thickness Control
  • Ambient Operation
  • Wet-Chemistry Coating
  • Conformal Coating
  • Ease of Scale-Up
  • Low Cost
  • Automated


Automated SPALAS™ coating system was developed for a new type of  nano-enabled optical coatings. SPALAS™ coating is a wet chemistry layer-by-layer absorption process based on chemical or electrostatic interactions between the material building blocks. The coating system allows the applications of optical grade coatings on various substrate materials, including plastics and glass. Advantages of SPALAS™ coating over traditional vacuum or sol-gel based coatings include unparalleled low cost, small footprint, ease to use, and scalable to very large size. SPALAS™ coating technology has a broad range of applications, including solar panel light absorption enhancement, anti-reflection coating of optical surfaces, IR optical coatings, anti-fog coatings, and other nanostructured multi-functional coatings.


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Substrate Size* up to 6”x10”
Carrier Gas N2, Ar2, Air
Carrier Gas Pressure 20~40 psi
Scan Speed programmable
Precursor Flow Rate adjustable
* 6”x10” is for the standard SPALASTM coating system. Larger substrates can be coated using a scaled-up coating system.