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Automated Conformal Coating

Automated conformal coating

Coating Introduction

Conformal coatings are widely used in the electronics industry for environmental protection of PCBs from humidity, corrosive gases and solvents, dust, sand, and other contaminants. Traditionally, the major market for conformal coatings has been the defence electronic industry where the need for long-term, high reliability demanded the presence of environmental, electrically-insulative coatings. Conformal coatings can be formulated from many different chemical technologies and are normally applied by dipping, spraying, or flow coating processes. The cured coatings are chosen based on their dielectric properties, abrasion, solvent and thermal resistance, and ease of application.

Selective Spray coating

Selective Spray Coating via The PVA2000 provides a clean, efficient process for applying conformal coating while virtually eliminating labour-intensive masking operations. Utilizing a controlled atomized spray and a non-atomized flow coating process, the PVA2000 limits conformal coatings to a defined, pre-programmed coverage area. Film builds as low as 0.01 mm (0.0005”) can be achieved across the desired surface. The PVA2000 offers an unparalleled level of precision and speed to the coating.

Materials:
  • Silicones (Electrolube FSC Flexible Silicone Coating)
  • Acrylics
  • Humiseal

Certonal Coating (Dip)

Certonal coating is under taken via our Autocoat 1000 dip coating system which provides full immersion coating followed by a drying process in a frost free cooled area. The coating and drying process is contained within the same tank which is fitted with a user configurable filtration system. The basket is moved through the process chamber and dwells at the relevant process stages, controlled by the integrated logic controller and fully adjustable utilising the touch screen. The Certonal protective coating offers an effective protection of electronic devices against failures that are caused by condensation or air humidity, providing increasing dependability of products that are exposed to disadvantageous environmental conditions. The environment-friendly and effective dipping process does not require any masking on contact areas; keeping contacting ability and functionality of coated components on the other hand. The transparent and UV stable coating with only 1 μm thickness has no impact on optical components and offers a long-lasting life span.

Materials:
Concept to Production Electronics since 1985