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Some problems in making interior and exterior latex paints with CMC Chemical

Nov. 23, 2019

CMC Chemical is an ionic water-soluble cellulose ether used primarily as a retarder, water retention agent, thickener and binder in building materials. Among them, the instant type CMC can be used for the inner and outer wall emulsion paint.

Why is conventional CMC generally not used to produce latex paint? Because the conventional CMC is easy to absorb water when it is put into the water, it is difficult to disperse completely dissolved in the aqueous solution without sufficient agitation and sufficient time. At this time, if you want to add other ingredients for solution matching, it is difficult to operate. Some factories will increase the equipment such as emulsifier and expect to cut and stir, but it is easy to waste time and increase expenses, and the effect is not satisfactory.

CMC can solve this problem. Because CMC has not been put into the aqueous solution for 10-15 minutes, it will not be vicious, but it can be quickly dissolved in water without clumping. During this period, other ingredients and accessories can be added according to the formula. The viscosity of CMC will also reach its maximum after 40-50 minutes, and then it will stabilize after about 1 hour. It can work well with the actual environment in which latex paint is used.

Carboxymethyl Cellulose

Carboxymethyl Cellulose

In addition, the basic alkaline CMC sodium can not be used for the production of latex paint.

How to make Carboxymethyl Cellulose dissolve quickly in water?

When using CMC sodium, we often need to make it into a water solvent because of the thickening of water solvent, film formation, adhesion, moisture retention, colloid protection, emulsification and suspension. So, the question is, is there any way to make CMC dissolve quickly in the water?

For the use of CMC, we have summarized the following four rules:

1. When the product is stirred, slowly add CMC sodium to accelerate the dissolution.

2. In the case of heating, dispersing and slowly adding CMC sodium can also improve the dissolution effect well, but it is worth noting that the heating temperature is not as high as possible, and the optimum temperature is 50 ° C to 60 ° C.

3. If the CMC is mixed with other products, it is usually possible to uniformly mix the solids first, which is better than adding the dissolution effect when mixing.

4. It is possible to add an organic solvent such as glycerin or ethanol which is not dissolved in CMC but is compatible with water and then dissolved in water to effectively improve the dissolution efficiency.

If you want CMC sodium to dissolve quickly in water, you can get good results by following the above 4 points of thinking. Of course, if you need to get the best results, please pay attention to the QR code of this site, we will everyone offers the best solution.

For the use of CMC, we have summarized the following four rules:

1. When the product is stirred, slowly add CMC to accelerate the dissolution.

2. In the case of heating, dispersing and slowly adding CMC can also improve the dissolution effect well, but it is worth noting that the heating temperature is not as high as possible, and the optimum temperature is 50 ° C to 60 ° C.

3. If the CMC is mixed with other products, it is usually possible to uniformly mix the solids first, which is better than adding the dissolution effect when mixing.

4. It is possible to add an organic solvent such as glycerin or ethanol which is not dissolved in CMC but is compatible with water and then dissolved in water to effectively improve the dissolution efficiency.

If you want CMC to dissolve quickly in water, you can get good results by following the above 4 points of thinking. Of course, if you need to get the best results, please pay attention to the QR code of this site. We will give you the following text. Provide the best solution.

We are CMC Powder Supplier, welcome to consult.


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