Synthalan LS768 is an acrylic resin designed specifically as a paste binder, particularly suitable for use with hard-to-disperse pigments. Here's an overview:
Characteristics:
- Acrylic resin cross-linking with polyisocyanate.
Composition:
- Supplied as 60% in butyl acetate.
Use:
- Intended as a paste binder, especially useful for challenging pigment dispersion applications.
Properties:
- Hydroxyl value: 46 - 53 (in-house method, AV-F-H003).
- Hydroxyl content: Approximately 1.5% (relative to non-volatile constituents).
- Viscosity: 5,500 – 7,000 mPas (as supplied, in-house method, AV-F-V005).
- Gardner colour value: < 4 (as supplied, in-house method, AV-F-F007).
- Non-volatile content: 60 +/- 1% (as supplied, in-house method, AV-F-F003).
- Flash point: 28°C (as supplied, in-house method, AV-F-F006).
- Density: 1.041 g/ml (as supplied, in-house method, AV-F-D001).
Mixing Ratio with Polyisocyanate:
- The formula for calculating the added amount of polyisocyanate is provided assuming an equivalent reaction of the reactive groups (NCO:OH = 1:1).
Solubility/Dilutability:
- Compatible with various solvents, including ethyl acetate, butyl acetate, MEK, toluene, xylene, and others. It's crucial to use hydroxyl group-free solvents for dilution.
Compatibility:
- Compatible with various reaction partners and polyisocyanates, as indicated in the provided compatibility table.
Storage:
- Store in tightly sealed containers in a frost-free place.
This resin offers a solution for achieving effective dispersion of pigments, providing specific characteristics needed for demanding applications.