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Standard Automated Dip Coating & Drying Systems

Glenro designs and manufactures conveyorized machines that vertically dip coat and submerge printed circuit boards into protective conformal coatings and then dry the coatings. One machine: one continuous process: one operator.

Two standard machine designs are available:

• Model 4124
• Model 4246

Dip Coating versus Spray Coating

Dip coating both sides of the product at the same time promotes high-quality encapsulation of the components and increases through-put. Dip coating eliminates the need for complicated material handling systems, multiple operators, and avoids the high maintenance of spray coating equipment. End users are attracted to the idea of dip coating their boards, as compared to spray coating because dip coating reduces the overall cost of manufacturing. Very little coating is wasted and specified coating thicknesses required to protect the boards against the end-use environment in which they are designed to operate can be applied and dried in one pass through the machine. Dip coating with set-point viscosity control puts the user back in control of the commercially available conformal coatings and allows operators to extend the coverage areas per gallon purchased.

Standard Features

• Preassembled & Wired
• Stainless Steel Dip Tank, overflow reservoir, liquid level control to +/-50 mils
• Recirculation-Filtration System, to maintain the quality of the coating
• Supply and Exhaust Air Ventilation, to maintain a safe operation
• Speed Controlled Driven Conveyor, with cross bars to hang the work
• Low Temperature, Uniform Infrared Dryer
• Control System

Optional Features

• Controlling Viscometer, inclusive of indicating meter, solvent reserve tank and additional control piping and wiring
• Fire Suppression System, designed in accordance with the National Fire Protection Association, Pamphlet No. 12
• Dip Tank Nitrogen Purge Blanket, which includes a tank cover with fitting for connection to a remote N₂ supply to deter coating evaporation when the equipment is not in use.

Custom Conformal Coating & Printed Circuit Board Machines

If one of our standard conformal coating machines (models 4124 and 4246) does not meet your needs, Glenro can design and manufacture a custom conformal coating machine for your application.

Typical Custom Features:

• Hot Air Drying System
• Single Side Coating Application
• Special Fixtures & Material Handling Equipment
• PLC Based Control System