Borchi® Gel 0434 is a high shear range thickener specifically designed for waterborne coating systems. It is a non-ionic, polyurethane-based associative thickener, free from glycol ethers, tin, and VOCs (Volatile Organic Compounds), making it suitable for environmentally friendly coatings.
Key Characteristics:
- Appearance: Opalescent, middle-viscous liquid
- Non-volatile content: 19 - 21%
- Density: 1.010 - 1.050 g/cm³
- Viscosity: Max. 15000 mPa·s
- Solvent: Water
Properties:
- Rheology: Develops a Newtonian rheological profile, enhancing high shear viscosity (> 1000 s⁻¹).
- Application: Promotes good gloss, stability, leveling properties, and physical properties such as hide, mar resistance, and non-yellowing.
- Compatibility: Works well with low to medium shear thickeners (HEUR, HASE, ASE), organic zirconium compounds, or cellulose ether.
Applications:
Borchi® Gel 0434 is used in:
- Clear or pigmented water-based systems.
- Matte to high gloss decorative and industrial waterborne coatings.
- Water reducible one and two-component polyurethane and epoxy systems.
- It improves settling and separation during storage, color development, and tint strength.
Dosage:
- Recommended dosage is 0.5 - 4.0% of the total formulation weight.
- It can be added at any formulation stage, and pre-thinning is generally not required.
Storage and Safety:
- Store at temperatures between 5 and 30 °C.
- Reseal containers immediately after each use.
- Refer to the safety data sheet for detailed safety information.