A solution to the problem of foaming and particles in wood paint

Wood furniture paint in the process of painting, inevitably because of some factors lead to paint problems. Common coating problems are, whitening, hazy, poor adhesion, flow, yellowing, particles, tweezers, ribs (conduit bulge), wrinkles, cracking, bite bottom, bubbles, orange peel, pinholes and so on. This time mainly share the "foaming", "particle" problem solutions

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blistering
analysis
★ high stickiness of the coating. A single spray is too thick
the temperature is too high, the thinner evaporates (drying) too quickly, and
★ deep catheter is not filled in place. The substrate treatment is not in place
when the previous paint film is not dry and the next coating is carried out when the
★ is not well ground.
spray air pressure is too large, the trachee is mixed with moisture.
★ wood has a high water content.
Solutions
. Strict control of the moisture content of wood,
paint adjustment suitable for the viscosity of construction tools before construction,
. strict management of the construction environment temperature and humidity. Natural waiting time should be reasonable.
base treatment should be in place. Close or fill if necessary.
can not be a thick coating (recommended multiple thin coating);
the air pressure, oil pressure check, adjust well.
air compressor to be diligent in maintenance, water change, air to be filtered after use.
surface of the work surface, which has produced bubbles, needs to be ground and refurbished before coating.
of rough particles
analysis
★ the paint storage time is too long, the quality of flocculation fineness is not qualified.
paint is not fully stirred and filtered before use.
★ the substrate is not in place, there are foreign objects or impurities residue.
thinner does not match the coating.
★ the coating environment dust is too large, serious pollution.
spray gun and spray parts are too far away, atomized paint material before reaching the work piece thinner volatile, resulting in paint film to reach the work surface lost (wet) fluidity, and the formation of particles.
★ spray caliber is small, pressure is high, will also cause particles.
the coating tool (spray head, brush, roller) is not clean enough, there is residue mixed in.
a furniture factory site
solution
to confirm the cleanliness of the operating environment, dust, exhaust, temperature and humidity management.
coating products that are qualified for fineness during the shelf life.
the paint is fully stirred and evenly stirred, first with 200 eyes of filtration and then used.
the paint after the dressing to avoid too long, and thicken.
work parts are polished, dust should be cleaned to prevent impurities from mixing in.
the coating tools, work tools clean, tracheal cleaning.
the appropriate nozzle caliber, reasonable spray distance (about 30cm)
When particles appear on the coating surface, after the paint film is thoroughly dry, carefully grind and level with fine sandpaper, dust cleaning, and then reapply.
basic elements of coating management are