SG460 Series SG460NS: Non-Silicone Variant
Isocyanate-hardening two-part urethane inks designed for polyethylene (PE) and polypropylene (PP) containers and for metal-coated plates. Compared with normal epoxy inks, SG460 offers superior resistance to weather, chemicals, moisture, and friction while maintaining a flat glossy finish.
Key Specifications
| Parameter | Details |
|---|---|
| Ink Type | Isocyanate-hardening two-part urethane. Can harden at room temperature on plastic substrates. |
| Usage | Printing on metal-coated plates and PE/PP containers after surface treatment (e.g., flame treatment). |
| Features | Flat glossy finish; excellent resistance to weather, acids, alkalis, solvents, water, and friction. |
| Diluent | Standard solvent: T-920 Â |Â Slow-dry solvent: T-980 |
| Mixing Ratio |
Ink : Hardener = 70:30 (Standard colors) Ink : Hardener = 60:40 (Transparent colors) Ink : Hardener = 40:30 (800 Medium Clear) Note: Ratios can vary slightly by color. |
| Screen Mesh | Tetron / Nylon 200–300 mesh recommended. |
| Wash-up | T-15 |
| Drying |
Room temperature: 25 °C for 20–30 hours (touch-dry in ~2 hours). Heated: 80 °C × 40 min or 120 °C × 20 min. |
| Other | SG460 hardeners are highly moisture-sensitive; use immediately after opening. |
| Pot Life | Mixed inks may gel and lose properties if left at room temperature for ~10Â hours. |
For applications requiring a non-silicone system, select SG460NS with the same performance profile.