Water Based Coatings

Humiseal 1H20AR3S VOC-Free Aqueous Conformal Coating

HumiSeal® 1H2OAR3/S is a water-based acrylic conformal coating is most suitable for spray , brush and dispense coating methods. The coating contains a UV tracer for ease of inspection. HumiSeal® 1H2OAR3S provides excellent moisture insulation resistance and can be chemically removed or soldered through for rework. HumiSeal® 1H2OAR3S is IPC-CC-830 and RoHS Directive EU 2002/95/EC compliant

Waterborne coatings should not be placed directly on bare/untreated steel. Applying waterborne coatings when the Relative Humidity is > 80% will adversely affect coating uniformity and can cause poor adhesion.

When HumiSeal® 1H2OAR3S is first applied it has a milky white appearance. As the film dries, the white colour fades until a clear, transparent film remains. The white colour aids the operator’s coverage inspection and the colour change serves as an indicator that the coating is dry to the touch. It is recommended that the coating be allowed to reach a tack-free condition before using heat to accelerate the cure process.


ONBoard Solutions offers SMT Production Solutions, Inline Printers, PCB printers, SMT assembly machines, Thermal Reflow Ovens, Wave Soldering, Conformal Coating, PCB Cleaning, Rework, Soldering, Desoldering and Rework Stations, Dispensing Units, Fume Extractor, Static Controls, DIE Bonders, Wire Bonders, Dicing Systems, Wafer Mounting System, Precision Cleaning, Lead free Solder Paste, Leaded Solder paste, Solder Wire, Flux, Epoxies, SMT Adhesives, UV Curable, Underfill, Precision Cleaners, Bonding Wire, Capilliary Tubes, Nozzles, Solder Tips, Air Showers, Pass Boxes, Transfer Hatches, Fan Filter Units, Laminar Flow Cabinets, Straddle Units, Modular Clean Rooms, disposable gloves, sterile gloves, ESD chairs, sticky mats, disposable garments, wipers, disinfectants.