Benefits
Stable relative humidity prevents paint from drying too fast or too slow and ensures a better levelling, reduced orange peel, and consistent colour tone across batches.
Superior paint quality
Maintaining stable RH ensures flawless finishes, prevent defects and delivers consistent colour and coating performance across all production conditions.
Reduce rework, waste, and downtime
Optimised moisture levels minimise paint booth faults, cut rework by reducing defects, and create smoother, more efficient spraying operations.
Coating stability
Humidity regulation eliminates seasonal variation, ensures predictable curing, and keeps surface-finishing quality high every day of the year.
Improved paint flow, finish quality and colour consistency
Proper humidity minimises dust attraction, static charge buildup, overspray issues, and surface imperfections. The result: fewer defects such as blushing, cracking, peeling, or poor adhesion.
Better environmental and worker conditions and consistent process conditions year-round
An optimal humidity level, limits volatile organic compound (VOC) evaporation and improves air quality. It creates a more comfortable and safer working environment. Additionally it eliminates seasonal variations that can affect drying and curing.
Use cases
Prevent evaporative losses
Organic materials have an internal moisture content and will lose moisture to the atmosphere when exposed to air with a low humidity. Humidifiers are used to create an environment with perfect balance between the material’s internal moisture content and the air’s relative humidity.
Anti-static and ESD prevention
Low humidity increases static build-up because dry air is an insulator, making electrostatic discharge (ESD) more likely. Maintaining 40–60% relative humidity helps dissipate charges and significantly reduces ESD risk.
Frequently asked questions
Why is humidity control important in a paint spray booth?
How does humidity control reduce rework and production costs?
What problems occur when humidity is too low?
What happens if humidity is too high during painting or finishing?
Do both water-based and solvent-based paints require humidity control?
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Condair ML in-room humidification
High performance and robust for a wide range of different applications
JetSpray Compact
Delivered fully assembled, with two nozzles as standard, the JetSpray Compact is a simple way to deliver up to 30kg/h of humidity directly to an atmosphere.
The use of compressed air to atomise the water allows the humidifier to operate without a fan, making it ideal for use in very dusty, industrial environments. Compressed air also provides highly directional aerosol plumes without any gravitational drop, and a very short evaporation distance.
Condair ESCO
The Condair ESCO live steam distribution system efficiently delivers dry, hygienic steam from the central steam network to the air ducts or ventilation units. It features a precise ceramic rotary disc valve (0–100% modulation), internal nozzles for condensate-free distribution of saturated steam in the air duct, fast response without preheating, and capacities of up to 1,000 kg/h at pressures of up to 4 bar.
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