General knowledge of coatings: Six inspection methods of defoamers for coatings

Core tip: after defoamer manufacturers produce defoamer for coating, in order to ensure product quality, it is necessary to test the performance of the following six test methods: First, measure cylinder method: add a suitable amount of low viscosity coating in the measuring cylinder, add defoamer, shake it and observe the height of foam every once in a while Two High speed stirring method: it is suitable for low viscosity coatings, and the foam level is measured after high speed mixing Three, gravity cup method: suitable for high viscosity coatings, paint and defoamer together to homogenizer high-speed mixing, and then determine the height and density of foam Four, circulation Which is the price of Dajin diatom mud Recommended brief introduction: which is the price of Dajin diatom mud? How to buy genuine diatom mud? Guangdong diatom mud agent suggests placing a basin of cold water in the air conditioning room, so that the diatom mud wall can breathe effectively The feature of the breathing wall is obvious When the indoor air is dry, the diatom mud wall will release the absorbed water quickly Put it out to help regulate the indoor dry humidity It is suggested to place a basin of cold water in the air conditioning room, so that the wall of diatom mud can breathe effectively The feature of the wall that can breathe is obvious When the indoor air is relatively dry, the wall of diatom mud will absorb the water Coatings home news: after the defoamer manufacturer produces the defoamer for coating, in order to ensure the quality of products, we need to check the performance We can use the following six methods: first, the measuring cylinder method: add a suitable amount of low viscosity coating in the measuring cylinder, add defoamer, shake it and observe the height of the foam every once in a while Two High speed stirring method: it is suitable for low viscosity coatings, and the foam level is measured after high speed mixing Three, gravity cup method: suitable for high viscosity coatings, paint and defoamer together to homogenizer high-speed mixing, and then determine the height and density of foam 4、 Circulation method: after coating, the remaining coating will fall into the container, and the height of the coating shall be recorded at intervals Five, bubbling method: suitable for low viscosity coatings, air will be introduced into the paint to produce foam, add defoamer regularly after the export of air, and timely recording the height of foam Six, vibration method: repeated vibration, and then foam density measurement Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,