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How to choose proper defoaming agent in coatings

author:未知      click:      time:2017-06-27 10:46

In today's society, a variety of coatings have entered our daily life, Home Furnishing, printing materials, wall paint, paint workers provide us with multiple varieties of paint, it also faces some material selection, general coating in use is not a bubble of hope, we have the following de coating selection of foaming agent for you under the introduction!

How to choose proper defoaming agent in coatings? In order to ensure the quality of paint, defoaming agents need to be evaluated.

Here are six inspection methods for your reference:

A method of adding, a low viscosity coating on the cylinder, then adding defoaming agent, after shaking at intervals of foam height。

Two, high speed mixing method: suitable for low viscosity paint, high speed mixing foam level determination。 Three, gravity cup method: suitable for high viscosity coating, coating and defoaming agent to join the mixer, high-speed agitation, and then determine the height and density of foam。

Four, cycle method: after painting, the remaining paint will fall into the container, the paint height should be recorded at intervals.

Five, bubble method: apply to low viscosity paint, air import, make paint foam, add defoaming agent after regular export air, and timely record foam height。

Six, vibration method: repeated vibration, and then foam density measurement.

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