Automated Conformal Coating

Specialists in Conformal Coating.

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.


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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.

At Nemco we have two purpose built, ventilated Conformal Coating rooms, one used for the application of Silicon material and the other for Acrylics. Each of these rooms contain their own spraying equipment machinery, tooling and material storage. During the process, Dry Coating Thickness Tests are performed using a Positector 6000 Micron Measuring System and Coupons. Before coating the boards it is important to determine the dry thickness requirement via the Customer. Typical IPC standards for coating dry thickness are 50 – 210 Microns for Silicon and 30-130 Microns for Acrylic. 

Each Room contains their own Inspection equipment along with UV Lighting. This aids the Operator when inspecting each board after coating has been applied.

Selective Spray coating

The Acrylic Room contains a Nordson Asymtek SL940 Selective Spray Coating Machine which is designed to provide the highest quality and productivity for automated coating processes. It provides consistent, uniform dispensing of conformal coating materials for conveyorised applications. The SL-940 is a high-speed, high-accuracy conformal coating system with an integrated, closed-loop process control that ensures superior coating quality. Process parameters are recorded and traceable through Easy Coat (ECXP) software. The system can eliminate the requirement for labour-intensive board masking, providing accurately controlled patterns, film builds and production flexibility in an automated process. Film thickness is achieved in a single pass with little or no masking and with virtually no overspray.

The Silicon Room contains a PVA2000 system which provides a clean, efficient process for applying conformal coating while virtually eliminating 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 0.01mm (0.0005”) can be achieved across the desired surface. The PVA2000 offers an unparalleled level of precision and speed to the coating.

Materials Used

  • Humiseal 1B31 & 1B73
  • Electrolube HPA
  • Acota Certonal Coating
  • Humiseal Thinners
  • Electrolube FSC
  • Electrolube DCA
  • DCR – Modified Alkyd Conformal Coating
  • Electrolube DCT Thinners

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:

RDC 15 (Dip) FSC Coating

The RDC 15 Dip Coater with Stepper Motor Control has a variety of speeds and settings. The Features of this system are:

  • Lift bar for several workpiece fittings.
  • The dip coater works with constant dipping speed. This speed is adjustable between 30 – 10.000 mm/min. The drawing speed determines the thickness of the coating. This speed is as well adjustable from 30 – 10.000 mm/min.
  • The dipping time as well as the drip-off-time (pause time up and down) is separately adjustable from 0,5 s up to 100 hours. This enables the machine not only to coat but also to precisely develop.
  • Up to 9 iterations are possible.

Christine Stanley

Christine joined Nemco in 2008 to provide material costings for customers within the Purchasing department, and took on the role of Purchasing Manager in August 2013. Experienced in Electronics Distribution, CEM and Defence Manufacturing, positions have included Sales Manager, Customer Service Manager, additional to senior roles in Continuous Improvement, Logistics and Materials Management.

Christine enjoys and excels at team building and developing vendor partnerships.

In her spare time, she is an avid reader of classic literature and genre fiction, and swims several times a week.


Derek Loveday

Derek joined Nemco in 1999 as a Design Engineer. Starting his career with Marconi Space & Defence Systems, he has worked for various System House and Design companies and has over 30 years’ experience in electronic hardware & software design.

Derek is responsible for the administration and development of the company’s IT and ERP systems. He also provides technical support for manufacturing and project management of electronic design.


Archie Hayford

Archie joined Nemco in 2016 as Financial Accountant to strengthen the team and took on the role of Company Accountant in May 2019.Archie has 16 years’ experience in Finance gained in both the Retail and Manufacturing Industry. Archie is a member of Chartered Institute of Management Account and is responsible for the overall accounts activity, working with suppliers, customers and internal contacts. He spends his free time with his family, enjoys running, swimming and a keen follower of sports.


Karen Syvertsen

Karen joined Nemco in 2003 being specifically tasked to set up the HR department. Karen describes herself as a qualified HR generalist, her previous experience having been gained in both the Retail and Manufacturing industries often in a unionised environment.

The HR department in Nemco now employs two staff in addition to Karen and is responsible for the Personnel, Training and Health and Safety functions. Karen has been a member of the Chartered Institute of Personnel and Development throughout her career.


Steve Trice

Steve joined Nemco in 2005 as a Production Engineer. He has over 30 years’ experience working in the Electronics Manufacturing and Quality environment, beginning his career with a formal Apprenticeship at British Aerospace.

Having spent the 11 or so years prior to Nemco working within Automotive Quality, Steve is more than qualified for his current position of Production Engineering and Quality Manager.

Steve and the Engineers within his department are directly involved with the customers of Nemco at all stages of manufacturing to ensure as smooth a route as possible for their products through the production cycle


Kevin Flynn

Kevin joined Nemco in May 2011 having previously worked in the Electronic Components field for 25+ years. He has a wealth of experience within the industry, gained from the various positions he’s held ranging from Account Manager to General Manager.

Kevin is now totally responsible for all aspects of Sales and Marketing within Nemco and consequently spends a significant amount of his time visiting customers to preserve and enhance the business partnership.

He is also a keen sportsman which these days revolve around Golf and Cycling.


Kim Trueman

Kim joined Nemco in 2015 from a predominantly aerospace background. She has 20 years’ experience in manufacturing gained from various Engineering and Management roles – Previous positions held include Process Specialist, Manufacturing Manager and Plant Manager. Kim is responsible for Manufacturing at Nemco, driving improvements and developing the production process and systems to suit our growing requirements.

Outside work she likes to make the most of her time with her family and occasionally some home improvement ‘upcycling’ projects.


David Duric

David joined Nemco in 2015 strengthening the Senior Management team as Sales and Marketing Director. David brings with him an international wealth of sales, customer service and marketing expertise. Prior to joining Nemco, David has worked predominantly in the sales and electronic engineering sectors, employed long-term in prestigious Global companies such as Technicolor and Thomson SA. Degree qualified in business management and electrical engineering, positions have included managerial statuses such as Head of Supply Chain, Managing Director and Customer Services Director. David will use his expertise to increase our service offerings and also to increase our customer base taking us to the next level of business growth.

Bob Parker

Bob has been with Nemco since its inception. A qualified Electronics Engineer and stamina that knows no bounds. Bob spends much of his time overseeing the key activities within Nemco and is often the first port of call for customers seeking technical assistance. If you are a customer of Nemco then it is likely that Bob’s number is on your speed dial.

Dave Pearce

Dave is the owner and founder of Nemco. During his early career Dave was actively involved in Electronics Design and Development encompassing system design and project management. Prior to setting up Nemco Dave was Managing Director of a Systems house engaged in contract product design, plus the supply of turnkey ATE and production monitoring systems.

Dave is actively involved with both the Executive and Technical Management and customer facing contract evaluation and costing aspects of the business. On the outside Dave is a Classic Car enthusiast, driving, racing and maintaining his own vehicles.