4 drying methods for water-based wood coatings.

The application of water-based wood coatings has been recognized by the relevant industries a major trend, to achieve efficient operation there are many difficulties to overcome, drying technology is one of many difficulties.
water-based wood coating drying methods are many, different drying methods on the drying speed of water-based coatings and film quality is obviously different, the following is introduced 4 kinds of water-based wood coating drying methods.
1. Natural
has the advantages of simple method and universal application, but at the same time it has the defect of slow

. Under natural conditions, temperature and humidity and wind speed vary from time to time, and the drying speed and film quality are unstable.
2. Hot air drying
heat air drying is a heat-drying method that uses conflowal principle, using hot air at a temperature of 40-60 degrees C as the carrier, transferring heat energy to the coating on the exterior of the work piece, which absorbs energy and cures it into a membrane. Electricity or steam are commonly used as heat sources to allow the coating to dry quickly.
the use of hot air drying process, can significantly speed up the coating drying speed, and has a strong compliance characteristics, is a more common way of drying.
3. The advantages of microwave drying
microwave heating are that the drying speed is particularly fast, different substances are selectively absorbed for microwaves, there is no form requirement for the dried object, the heating of the coating film is very average, there is no temperature gradient, can dry the thick film.
4. Infrared drying
infrared curing can be used to dry the coating of water-based wood coatings. The so-called infrared curing actually refers to the coated furniture plate and its coating in the infrared light, absorbing radiant energy and converted into thermal energy, thus completing the curing of the coating.
infrared curing has the advantages of fast curing speed, rapid heating, good curing quality, but when using infrared heating drying coating, the coating has a clear temperature gradient, its drying is extended from the outside to the inside, which makes it not suitable for drying thick coating film.
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