It is derived from cellulose, and is modified with hydroxyethyl groups to improve its water solubility.
HEC has several properties that make it well-suited for use in paint formulations:
Thickening: HEC is an effective thickener, increasing the viscosity of paint formulations and improving their stability and flow properties. Water retention: HEC has excellent water retention properties, which can help prevent water loss and improve the workability of paint formulations during application.
Binders: HEC can also act as a binder, helping to hold the paint formulation together and improve its adhesion to the substrate.
Stabilization: HEC can help to stabilize paint formulations, preventing the settling or separation of pigments and other components.
Film formation: HEC can contribute to the formation of a smooth, continuous film on the substrate, improving the appearance and durability of the painted surface.
Hydroxyethyl Cellulose (HEC) is typically used as a thickener and stabilizer in water-based paint formulations. Here are some general guidelines for using HEC in paint:
Determine the desired viscosity: The amount of HEC that you need to add to your paint formulation will depend on the desired viscosity. This can be determined through testing and experimentation.
Add HEC to water: HEC is typically added to water first to create a slurry. The amount of water needed will depend on the quantity of HEC being used, but a good rule of thumb is to use 2-3 times the weight of HEC in water.
Mix the slurry: Mix the HEC and water slurry using a high-speed mixer or blender. This will help to ensure that the HEC is fully dispersed and there are no lumps or clumps.
Add the slurry to the paint: Once the HEC slurry is fully mixed, it can be added to the paint formulation. The amount of HEC slurry that you need to add will depend on the desired viscosity and the amount of paint that you are making.
Mix the paint thoroughly: Once the HEC slurry has been added to the paint, mix the paint thoroughly using a high-speed mixer or blender. This will help to ensure that the HEC is evenly distributed throughout the paint and that there are no lumps or clumps.