Beschrijving
Product Overview
CHLUMICRYL® WPU-1128 is designed for applications that require an elastic film with a dry surface rather than a tacky finish. The aromatic polyurethane dispersion is self-crosslinking and is positioned for bag and garment leather, synthetic leather topcoats, printing pastes and waterborne inks. Its stated mechanical profile includes a 100% modulus of 1.5-3 MPa and elongation of at least 400%. Knife-coating is an indicated application route. Keep this anionic resin separate from cationic pastes and solvent-based pastes unless a specifically validated formulation procedure establishes compatibility and acceptable coating performance.
Grade Characteristics
- Self-crosslinking polyurethane binder
- Elastic, strong film with a dry surface feel
- Color development
- Suitable for knife-coating trials
Technical Data
| Eigendom | Waarde |
|---|---|
| Brand and grade | CHLUMICRYL® WPU-1128 |
| Uiterlijk | Melkachtige witte vloeistof |
| Vastestofgehalte | 27 ± 1% |
| pH | 6-8 |
| Ionic type | Anionic |
| 100% modulus | 1.5-3 MPa |
| Tensile strength at break | ≥ 10 MPa |
| Elongation | ≥ 400% |
These values are technical selection data, not a batch-specific certificate of analysis. Test methods, current specifications and any acceptance limits should be confirmed before ordering.
Toepassingen
- Bag and garment leather
- Synthetic leather topcoats
- Printing pastes
- Waterborne inks
- Leather surface treatments
Formulation and Handling
Do not directly mix with cationic pastes or solvent-based pastes.
A coating application amount of 100-150 g/m² is indicated as a trial starting range; verify the wet/dry basis and suitability for the intended process before use.
- Wet-heat anti-tack performance requires a defined formulation, conditioning procedure and test method; no universal numerical rating is guaranteed.
Check binder compatibility, substrate preparation, application conditions and final coating or bond performance in your own formulation. Waterborne use does not by itself establish solvent-free status or a hazard classification. Consult the current safety data sheet and use appropriate industrial handling controls.
Verpakking en opslag
50 kg or 120 kg plastic drums.
Store at 5-30 °C in a cool, dry, well-ventilated place. Protect from freezing and light. Stated storage life: 6-12 months; confirm the applicable batch shelf life when ordering.
Request Technical Information or a Sample
Contact Longchang Chemical with the intended substrate, formulation system, process conditions and required performance. Ask for the current TDS, SDS, sample availability and quotation using the inquiry form below or email info@longchangchemical.com.
