Today, no one would design a paint booth without considering control of the psychrometric parameters inside. A relative humidity (RH) of up to 65-75% is often used for waterborne paints to avoid aerosol evaporation, pigment clumping and premature drying, and to achieve a consistent coating rate. Individual manufacturers recommend in their product sheets the ideal conditions under which their paint should be applied. This reduces consumption and makes application more efficient. However, all manufacturers agree that humidity in the booth must be considered and controlled to achieve high quality finishes.
As experts in controlling ambient humidity, we believe that the most economical and effective method of adding the necessary moisture to the painting process is adiabatic humidification. This is both cost and energy efficient and creates a healthy and productive environment in which the best results can be achieved.
Evaporative humidifiers are designed to increase the water vapour content of the treated air by natural evaporation of water. The air stream to be treated flows through a wet cell panel in a water sprinkler system. This panel consists of corrugated sheets of inorganic paper with stiffening additives and water absorbers. The cross-channel configuration of the panel provides a large air-water contact area that maximises evaporation while minimising resistance to air passing through (load loss). The fisair heF2E non-bonded hygiene panel can be used with any type of water, has hygiene certification and is the most durable available on the market.
Thanks to its modular features, this unit can be easily integrated into existing installations, reducing installation and maintenance times.
Demanding industries such as automotive, railway and aerospace are already using these units to achieve the desired conditions for their processes.
Compared to atomising or water spraying systems, these devices have the following characteristics:
