Coating Glass Panels With Low Viscosity Fluid

Based on the information provided, I'd say saturate a cloth and wipe it on.

Maybe some sort of roller applicator...

http://www.prismbahrain.com/new_technology.html

Low tech...

No tech...

For clean controlled coating check coating systems in Perry Handbook for Chemical Engineers. Roll, Knife over roll, 2 roll, 3 roll coating. Need to work from underneath.

Contact roll best rubber.

We used these techniques with electrostatic coatings for images.

For really low viscosity, coat it with cryogenic helium.

Consider spin coating, where the panel is rotated in a horizontal plane, while the low viscosity fluid is applied at the center of rotation. This is commonly used in the semiconductor industry.

Mark Bingham
Relativity PL

Thanks for the feedback.

These are large glass panels 2m x 2m, and the coating thickness has to be precise. Cannot use a manual method, need a manufacturing process flow with automated machines. furthermore, the liquid is fairly costly so we cannot realistically use dip coating (not to mention the backside will also get coated).

Thanks

Let me guess- as I really do not have knowledge of this field. Glass is an insulator. It must be electrically charged with one polarity and your liquid sprayed with another polarity. There are electrostatic sprayers available. May be hold your large glass plate in front of another ground potential. Hold the spray gun(with your low viscosity fluid) and spray - like spray painting.

Spin or miniscus coating is the answer.

Nano array dispense tools in market does very good job of low viscosity fluid coating

I wish to understand the problem again- The low viscosity fluid must get coated and stick to glass and not flow down easily. Is this coating to adhere to glass permanently? Even if the glass is held in vertical position, the coating fluid should not flow down- is that the requirement? Is the coating chemical a liquid or a particulate matter suspended in low viscosity liquid? Is it totally transparent or opaque- how to find out whether it is really coated or not? Can you define viscosity in terms of seconds?