Descrição
Product Overview
WPU-615 is supplied as a transparent liquid with a bluish cast for waterborne formulation development. Its application range spans waterborne paper inks, leather finishes and metal coatings. The grade is described as forming a smooth film with adhesion to different substrates, together with qualitative solvent, water and low-temperature resistance. A pencil hardness of HB is reported, although the test standard and film preparation conditions are not specified. Use that value as an initial selection reference, then qualify hardness, adhesion and resistance within the intended coating system and its actual drying schedule.
Grade Characteristics
- Smooth film formation
- Reported pencil hardness of HB
- Adhesion-oriented profile
- Water, solvent and low-temperature resistance for evaluation
Technical Data
| Propriedade | Valor |
|---|---|
| Brand and grade | CHLUMICRYL® WPU-615 |
| Aparência | Transparent liquid with a bluish cast |
| Polymer type | Anionic aliphatic polyurethane dispersion |
| Reported pencil hardness | HB |
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.
Aplicativos
- Waterborne paper printing inks
- Leather finishing
- Metal-surface coatings
Formulation and Handling
Test on the intended leather, paper or prepared metal substrate. Verify compatibility with the complete binder and pigment package and establish the drying conditions through trials.
- Confirm the current grade-specific solids, pH and viscosity specifications with the supplied material before formulation scale-up.
- The reported HB pencil hardness is not accompanied by a test standard or film-preparation conditions.
- A universal minimum service temperature is not specified.
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.
Embalagem e armazenamento
50 kg or 120 kg plastic drums.
Store at 5-30 °C in a cool, dry, ventilated place. Protect from freezing and direct light. Stated storage period: 6 months.
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.




