Precautions for Surface Curing of UV Paint on Solid Wood Furniture with LEDUV Curing Machines
News 2025-12-11
With the maturity of UV materials and LED UV curing technology, they play an especially important role in the field of green and eco-friendly curing. The solid wood furniture industry widely adopts UV paint or UV varnish for surface glazing treatment. Currently, there is a wide range of LED UV curing machines with different specifications on the market. However, many brands of LED UV curing machines have low compatibility with UV coatings, which results in incomplete curing of some UV coatings. Today, we are going to share the factors that affect the curing effect of UV paint!
Impact of Temperature on the Curing Speed of UV Paint Coatings
Excessively low curing temperature may slow down the volatilization rate of solvents inside the UV paint and retard chemical reactions, making it difficult for the bottom layer of the UV paint coating to dry. On the other hand, an excessively high curing temperature will not significantly accelerate the curing speed of the UV paint; instead, it may cause yellowing or darkening of the UV paint film. Therefore, during LED ultraviolet curing of UV paint, it is advisable that the surface curing temperature does not exceed 60℃.
Maintain Appropriate Indoor Humidity When Curing UV Paint on Solid Wood Furniture Surfaces
High humidity will reduce the evaporation efficiency of moisture in the UV paint coating and slow down solvent volatilization, thus decreasing the coating curing speed. Conversely, low humidity creates a dry curing environment. When the air humidity is too low, the moisture on the surface of the UV coating evaporates rapidly, which tends to cause a blushing phenomenon on the substrate surface. It is ideal to cure UV paint coatings with LED UV curing machines in an environment where the relative air humidity is maintained at 40%–60%.
Ventilation Conditions for LED UV Curing Machine Operation
Corresponding ventilation measures shall be implemented during UV paint curing to ensure proper air circulation on the coating surface. This facilitates the timely removal of solvent vapors emitted from the UV paint. Enhanced air circulation can shorten curing time, improve curing efficiency and ensure curing quality.
