Water-based paint occasionally becomes gel-like (jelly state) after being stored overnight. This issue is common in interior and exterior acrylic emulsions, elastic coatings, textured paints, and economic wall paints.
Gelation affects:
- storage stability
- construction viscosity
- leveling
- product appearance
Common Causes
- Low High-Shear Viscosity + Excessive Thixotropy: When low-shear viscosity is high but high-shear viscosity is low, the system behaves like jelly during rest.
- Use of ASE / HASE Type Thickeners
- pH Too Low or Neutralization Incomplete
- Temperature Fluctuation.
Solutions
- Increase High-Shear Viscosity: Add leveling agents or polyurethane thickener
- Increase Dispersant Level
- Increase Solvent / Coalescent
- Increase Neutralizing Agents
- Dilute with Water
One-Stop Technical Service
If your factory is producing water-based paints and facing gelation, sedimentation, thickening drift or instability,
we provide:
- customized formulation adjustment
- raw material supply
- production process optimization
- troubleshooting support
- pilot-to-factory scaling guidance