True stone QiChang home: how to solve the uneven coating color

Often troubled by the inhomogeneity of the paint color painter and the painter. Today, cobalt coatings will be for your analysis and solve the problem of coating color uneven long-term! Wall or ceiling with pva coating, such as paint, coating uneven color, color is not consistent, covering power is poor. The reason is: 1. Concrete or mortar short curing time, low intensity, the humidity at the grass-roots level. 2. At the grass-roots level surface smoothness, adsorption capacity is different. 3. The basic position of construction joints uneven. Have obvious different surface color of joint. 4. Using different batches of paint, color mixing different amount. 5. Paint mixing uneven or optional add enough water to make paint color is different. You can take the following precautions: 1. Concrete curing time should be at the grass-roots level in more than 28 days, slurry curing time should be within 7 days or more, mortar filling hole maintenance time should be in 3 days or more. Moisture content should be controlled within 10%, the mixture ratio of concrete or mortar should be the same. 2, concrete or mortar construction joint at the grass-roots level shall stay in Yin and Yang Angle or warehouse within the seam. 3. Foundation construction should be smooth, line shall be smooth. The paint before the surface oil should be removed. 4. Each batch of color of the paint material and ratio of various raw materials must be consistent. 5. Using paint, must mix, at any time shall not be arbitrarily adding water.