Spray Dispenser affords operational flexibility, uniform output.

Press Release Summary:

Used for precise dispensing conformal coating material, preeflow® eco-SPRAY features endless piston principle and low-flow spray chamber. Volume to be nebulized can be precisely defined and exactly applied, and variation in volume rate allows spray width to be changed on-the-fly during operation. While selection of dosing needles and air shutters are included for facilitated setup, viscosity- and back-pressure independent spraying allows application of constant amount to defined area.

Original Press Release:

Conquest of Conformal Coating Application with New eco-SPRAY

Conformal Coating in general

A conformal coating application for example concerning electrical parts helps to increase product service life of single components in different industry branches. Generally protection paint preserves electrical parts, like printed circuit boards from moisture, contaminations like dust, chemicals and temperature fluctuations. Furthermore the coating can improve system stability and electrical characteristic values. The positive properties of conformal coating material result predominantly in applications in electronic industry, as well as in the military sector or aerospace.

The spraying of conformal coating material as new preeflow application field

For precise applications of conformal coating material for example to single parts of electrical components, the brand-new since February 2016 available spray dispenser eco-SPRAY of preeflow will be recommended. The combination of the reliable endless piston principle and a low-flow spray chamber revolutionizes existing spray dispenser systems. The advantages of volumetric dispensing in spraying sector are essential. The volume to be nebulized can be precisely defined and exactly applied. A variation in volume rate can directly and proportionately affect the spray-image. Consequently the spray width can practically be changed “on the fly” during operation therefore dynamically.

A selection of dosing needles and air shutters are included in delivery of the eco-SPRAY, which can be changed extremely uncomplicated and fast during persisting setup. With this hands-on needle and/or air shutter change an ideal adjustment to medium and dosing process can be achieved within short-time. The system is showing supreme flexibility with this outstanding possibility to change a core component for precision in a simple manner. Besides an uniform spray-image with incomparable high edge definition can be generated. Viscosity- and back-pressure independent spraying is allowing the system to apply a constant amount to a defined area.

Preeflow provides with a typical material an example to what a nebulization of conformal coating should look like, having a viscosity of 20 mPas and a density of about 1 g/cm3. The controllable round spray is suitable for continuous as well as punctual application. All parameters, like spraying air, diameter of the dosing needle and air shutter can easily be adjusted. These values directly influence spray-image, spray-width and layer thickness. Robot speed and the changes in volume rate exert directly influence on layer thickness. Homogenous coatings with a width of 5 to 25 mm and a thickness from 3 μm on can be reached.

Feedbacks to the results of the eco-SPRAY application from specialists of the leading manufacturers of conformal coating materials were without exception enthusiastic. Especially precise edge definition, but also homogeneous application of a plain coating despite fine layer thickness persuaded the experts. Additionally the viscosity independent application and high chemical resistance for varying applications and materials make the eco-SPRAY the perfect spray solution.

Micro-Dosing in perfection!

preeflow® is a brand name powered by ViscoTec Pumpen- u. Dosiertechnik GmbH. ViscoTec primarily deals in systems required for conveying, dosing, applying, filling and emptying medium to high-viscosity fluids. The headquarter of the technological market leader is in Töging (upper Bavaria, near Munich). In addition, ViscoTec has subsidiaries in the USA, in China and in Singapore and employs about 120 people worldwide. preeflow® ensures precise, purely volumetric dosing of liquids in smallest quantities and was established in 2008. preeflow® products are appreciated worldwide, last but not least because of their unique quality – Made in Germany. An international distribution network offers professional services and support all around the preeflow® dosing systems. The various fields of application include, among others, automotive, electrical and electronics industry, medical technology, aerospace, renewable energies, electrical and hybrid technology and measurement and sensor technology. The complete preeflow® portfolio can be easily integrated due to standardized interfaces. Worldwide about 10,000 preeflow systems are working in semi- or fully-automated dosing applications - to the user’s and customer's complete satisfaction.

Press contact:

Thomas Diringer

Manager Business Unit Components & Devices

ViscoTec Pumpen- u. Dosiertechnik GmbH

Amperstraße 13, D-84513 Töging a. Inn

Phone +49 8631 9274-441

E-Mail: [email protected] 


Elisabeth Lenz

Master of Business Management (CCI)

ViscoTec Pumpen- u. Dosiertechnik GmbH

Amperstraße 13, D-84513 Töging a. Inn

Phone +49 8631 9274-447

E-Mail: [email protected] · www.viscotec.de

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