What are the common problems in the construction of nano spray electroplating coating?

One,water-based hardware nano paint pinhole

1,the problem phenomenon:in the surface of the paint film,a kind of depression penetrative pinhead fine hole phenomenon.These needle-like pinholes are about 100 microns in size.

2.Cause of the problem:

(1)The surface of the plate is not well treated,with many wood hairs and spines,and filling is difficult:

(2)the bottom is not completely dry,on the construction of two times.

(3)with the good paint does not stand for a period of time,the paint viscosity is high,the bubble is not eliminated.

(4)one-time construction is too thick.

(5)Failure distribution of curing agent and diluent:

(6)too much curing agent.

(7)High ambient temperature and humidity;

(8)high moisture content of wood.

Two-,water-based hardware nano baking paint blisters

1,the problem phenomenon:after the paint film dry,the size of the protrusion round bubble,also known as the bubble.Bubbles occur between the coated surface and the film,or between two layers of film.

2.Cause of the problem:

(1)the substrate treatment is not required,such as wood moisture content is high,or not the pine resin,wood itself contains aromatic oil removal,when its natural volatilization leads to blistering.

(2)oily or water-based putty is not completely dry or the bottom coating is not dry when the coating surface layer coating.

(3)the joints and holes of the wood are not filled,and there are gaps and holes,etc.

(4)paint viscosity is too high.

(5)the paint ratio is not appropriate.

(6)Drag the brush back and forth when brushing,and the bubbles are not eliminated.

(7)the surface of the substrate is covered with oil,dust,blisters,etc.,and these unclean things are stained with water.

(8)There is water in the compressor or air pipe,or water splashes on the construction surface.

19)mostly the same as the pinhole cause.

Keyword:Nano spray plating

Article source:http://www.nuohengal.com/