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Sodium polyacrylate
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Sodium polyacrylate

Sodium polyacrylate

Sodium polyacrylate is an additive for water-based paints that prevents pigments and fillers from clumping and settling. It achieves this by attaching to the particles and giving them a negative charge, which repels them from each other and keeps them dispersed in the paint.

This leads to a smoother consistency, finer particles, and better overall stability of the paint.

Typical Properties

Property Typical value
Appearance Transparent or slightly opalescent liquid
Color (Gardner scale) 5 max
Densité(at 20 °C) 1,28 - 1,32 gr/cc
Viscosity (at 20 °C) 100 - 250 cPs (Brookfield RVsp2, 50 rpm)
Refractive index (at 20 °C) 1,412 - 1,420
pH (at 20 °C) 7-8
Freezing point lower than + 5°C
Solubility Soluble in water
Ionic character Anionic

Applications:

Dispersant stabilizing agent for water based paints