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  • The Application of Sodium CMC for Casting Coatings
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How to Use CMC to Enhance Taste and Flavor of Food
2022-01-28
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How to Store Sodium CMC
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The Application of Sodium CMC for Casting Coatings

Published by SINOCMC at 2022-02-11
Sodium-CMC-for-Casting-Coatings

Sodium Carboxymethyl Cellulose, often abbreviated as Sodium CMC or CMC, has been quite an important material used in the painting industry as good thickener, stabilizer and protective colloid as a result of its excellent properties. In the previous articles, we have introduced the application of Sodium CMC in ordinary paints and latex coatings. Today, let’s talk about the application of CMC in casting coatings.

Sodium CMC is a polymer compound with multi-chain shape. After water swelling, the straight chain opens, extends and interacts to form a mesh colloid. CMC can interact with sodium bentonite, which can not only effectively improve the suspension capacity of sodium bentonite, but also greatly reduce the volume of precipitation and agglomeration. In the meantime, it can prevent refractory powder from settling. Therefore, CMC is often used to improve the suspension rate of casting coatings and improve the viscosity of coatings. The specific advantages of Sodium CMC in the application of casting coatings are as follows:

  1. It has excellent water solubility and viscosity, which can effectively improve coating viscosity and rheology.
  2. It has good solubility and dispersion effect, so that the solid material can suspend in the carrier liquid.
  3. It can promote the suspension of refractory powder, prevent precipitation, stratification and excessive infiltration of liquid carrier into molding materials.
  4. It can improve the coating and covering ability of the coating and improve the brushing and leveling of the coating.
  5. The powder in the coating is bonded to each other after drying, and firmly adhered to the surface of the type and core.

If you are interested or have any questions about Sodium CMC used for casting coatings, please feel free to contact us.

SINOCMC TEAM

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