
To judge the compatibility of color paste and paint, the experience in the industry is to use the finger research method. This article mainly describes how to use the wire Bar Coater and black and white lined paper to prepare the paint layer, and use the finger grinding method to judge its compatibility.
The operation steps are as follows:
Step 1: Add the largest proportion of color paste to the latex paint (you can also choose the toned latex paint), and stir it evenly with a magnetic stirrer to be tested;
Step 2: Select a wire Bar Coater with a wet film thickness of 100 microns and black and white grid test paper, and use the wire Bar Coater to evenly scrape the prepared sample to be tested on the black and white grid paper;
Step 3: Before the surface is dry, use your fingers to gently rotate and wipe off the paint film on the cardboard;
Step 4: Dry the sample paint on the black and white lined paper through a Drying Oven (temporary test can also use a hair dryer); observe with the naked eye whether there is a color difference between the wiped and unwiped parts, and if there is a color difference, it proves that the color paste and latex paint are in phase Compatibility is not good, anyway, the compatibility between the two is considered to be good.
There are many brands to choose from for the selection of wire Bar Coaters in NBCHAO Mall. For the choice of black and white lined paper, we recommend you to choose American Leneta black and white lined paper. This type of lined paper is coated on both sides. Compared with some low-end cardboards, it is smoother, and the prepared coating film is more uniform, thereby reducing the disadvantage of orange peel; and leneta's cardboards do not have any fluorescent whitening agent, which will be a more favorable reality for color comparison condition.