The temperature is rising day by day, alert against the recurrence of paint construction accidents
The temperature has gradually increased. This is also the time when the paint on the furniture coating appears to be the most serious problem. Do not worry anymore. Find the clear reason to solve the problem better. When the paint is applied, there are many defects in the paint film. Bad substrate. Haven't found the root cause yet? In fact, it is very simple, as follows:
1. The reason for the substrate itself is due to the difference in moisture content of the substrate, and if the moisture content of the substrate exceeds the limit, the quality of the paint film will be affected. Especially in wet weather, the wood moisture content will be higher, so the above paint will appear. Membrane ills are not surprising. Controlling the moisture content of substrates is the basic guarantee for good quality.
2. The reasons for substrate treatment The improper handling of the substrate can also cause the above defects. If the substrate is not closed, it is impossible to seal the oil and water under the paint, which will lead to the above defects.
How to solve it? In addition to on-site manual handicrafts and remediation for experienced painters, here we have problems with lacquer, bubbles, and pinholes on the paint film after painting. Make the following suggestions for your home painting construction:
1. The environmental temperature of construction paint should not exceed 30°C.
The construction environment will directly affect the final quality of the paint film. The best temperature in the construction environment is 25°C. At least, the indoor temperature should not exceed 30°C. The painting room and the drying room must maintain smooth ventilation. This is to ensure the paint film. The important conditions of quality.
2. Control of construction paint thickness During summer coating construction, due to the high weather temperature, it is not suitable for thick coating when spraying, because the paint solvent evaporates rapidly, resulting in a relatively fast surface drying speed, and the thick paint film. Easily lead to defects such as scorpions, air bubbles, and pinholes on the surface of the paint film.
3. Less curing agent to avoid foaming is misunderstood high-temperature weather paint is easy to foam, painters generally use less hardener to avoid foaming, and some individuals even only added to the standard amount of 50%! In fact, this is a misunderstanding. Reducing the curing agent does not substantially prevent the paint from foaming. Instead, it will cause the paint reaction to be incomplete and cause the paint film to become soft and have poor adhesion. If it is the primer, it may easily cause bite bottom phenomenon. High-grade topcoats also cause gloss instability. Therefore, this method is generally used to add appropriate amount of slow-drying water in the diluent (usually no more than 10% of the diluent); even if less curing agent, primer and semi-matt paint is still recommended not less than 1:0.45 The gloss finish should not be less than 1:0.8.
Three trees paint paint furniture
Laminate Flooring Molding Co., Ltd. , http://www.nslaminateflooring.com