Carrol Touch Modular Flat Panel, Руководство по монтажу и условиям эксплуатации

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CARROLL TOUCH Chapter 4 - Sealing and Coating
Modular Flat Panel Mounting and Environments Guide 4-3
Silicone is an environmentally inert material available in sponge or
solid form. It is recommended for application environments that
involve electrostatic discharge, severely caustic or actively corrosive
chemicals, high moisture, broad temperature ranges, oxidation, or
acids.
Coating
In the case of certain high density or high current circuits, or in harsh or
explosive environments where the intent is to prevent corrosion,
erosion, arcing or sparking, or in the face of critical service issues
where the failure of a circuit could cause loss of human life, conformal
coating is used as a second method to seal a circuit. Carroll Touch has
used conformal coating only rarely in the past for extremely ruggedized
or military applications.
Conformal coating is a polyurethane resin insulating compound that is
sprayed on or washed over the printed circuit board assembly during
the manufacturing process. It may be required in outdoor information
systems, shipboard applications, industrial environments, or wherever
moisture or corrosives must be prevented from entering the system.
Conformal coating is the ultimate seal for the touch system, providing
an excellent environmental shield from fungus, thermal shock,
moisture and chemicals such as sulphuric acid.