Electrostatic Spray Painting
CeilCote specialize in electrostatic spray painting for commercial and retail property nationally since 1989.
Electrostatic spray painting is suited to reduce overspray and therefore material waste. Suitable for obtaining very uniform and regular coating layers also on external angles and edges.
The substrate is connected to the ground. The paint particles are negatively charged (while atomized or after having been atomized by the air or airless methods) through a connection of the spraying-gun to a generator.
The variation in charge leads the particles towards the substrate to obtain the coating.
Electrostatic spray painting is typical in the Automotive Industry for over 25 years. Car makers found that if you magnetically charged the particles of paint that you were spraying on a car body, these would be attracted to the metal and produce a uniform cover of paint with superb adhesion. This meant that the paint job was of better quality, less paint was used to cover the same surface, and the overspray, that cloud of drifting paint particles that got on everything and everyone was reduced to a minimum, thus making the operation safer and more relaxed for the workers.
For electrostatic spray painting to work well, the paint spray is blown through an electrostatic field. The droplets have to travel during at high speed so that they draw the electrostatic charge out of the field with them and do not provide it a possibility to return to the field. Once out of the nozzle, the droplets forming the spray cloud (pattern) are carrying the electrostatic charge, this charge is looking for a place to land and will be occupied to the adjacent grounded surface.
Again, for electrostatic attraction to take place the "target" surface must be grounded and have magnetic attraction, as in the case of the lift doors, which is steel that has been degreased and ready for electrostatic spray painting. If you were to cover the lift doors with a nylon cover, the droplets would look for another exposed metallic surface to land on before going towards the "insulated" door, unless they were aimed directly at that lift door, in which case they would depose in very much the same manner of a conventional (non charged) spray.
One of the advantages of “Electrostatic Spray Painting” is that when the droplets in the cloud are attracted to the target surface, the magnetism of an area of the surface covered by a charged droplet is canceled out by the charge of the droplet and therefore the other droplets flying around in the cloud will look for another area that still has attraction. This means that with electrostatics, one can achieve a much more uniform coverage than with conventional spray patterns. i.e.: minimum amount of drips and runs: a good looking paint job.
Skilled CeilCote operatives carry out the electrostatic spray painting usually at night or weekends. The site is left clean and tidy ready for use the next morning.
For a free quotation contact CeilCote 0800-374-302
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