PU416 Polyurethane Primer is a polyurethane coating used as a primer. It provides excellent adhesion, good oil and chemical resistance, and is widely used for corrosion protection of steel and aluminum surfaces. Two-component pack, iron red, gray or other colors. Parameters on this page: dry film thickness 50–90 µm, theoretical spreading rate 8.26 m²/kg, number of components two-component.
Parameter source: OSAKA original technical data sheet (TDS) "PU416 Polyurethane Primer"; values such as spreading rate are converted from TDS parameters and are for selection reference only.
The above content is compiled from the manufacturer's datasheet and this site's parameter tables. For selection, coating systems and lead times, pleaseContact Usfor confirmation.
This page carries the full TDS for this product, translated from the manufacturer's original document. No file download is needed; for an original-language copy, send an enquiry.
| Volume Solids | 63% |
|---|---|
| Dry Film Thickness | 50–90 µm |
| Theoretical Spreading Rate | 8.26 m²/kg |
| VOC | 322 g/L |
| Density / Specific Gravity | 1.27 kg/L |
| Number of Components | Two-component |
| Flash Point | >23 °C (base, hardener, mixture) |
| Thinner | OUP 104, recommended addition 3%–5% |
| Mixing Ratio | Component A : Component B = 6:1 (by weight) |
Two-component pack, iron red, gray or other colors
Excellent adhesion, good oil and chemical resistance, widely used for corrosion protection of steel and aluminum surfaces.
| Volume Solids | 63% |
|---|---|
| Dry Film Thickness | 50–90 µm |
| Theoretical Spreading Rate | 8.26 m²/kg (based on 60 µm dry film thickness) |
| Practical Spreading Rate | Allowing a suitable loss |
| Volatile organic compound content | 322 g/L |
| Mixing Ratio | Component A : Component B = 6:1 (by weight) |
|---|---|
| Airless spray | Recommended: nozzle tip size 0.43–0.53 mm; fluid pressure ≥17.6 MPa |
| Brush or roller | Recommended |
| Conventional spray | Suitable, but not recommended. |
| Thinner | OUP 104, recommended addition 3%–5%. |
| Paint equipment cleaner | OUP 104 |
| Pot life | 23 °C: 4 h |
| Drying Time | ||||
| Substrate Temperature | Touch dry (min) | Hard dry (h) | Recoat Interval | |
| Minimum | Maximum | |||
| 5°C | 60 | 24 | 24 h | 7 days |
| 23°C | 30 | 12 | 12 h | 7 days |
| 35°C | 15 | 8 | 8 h | 7 days |
| Storage | In a dry, cool environment away from fire and heat sources. |
|---|---|
| Shelf life | Component A: 1 year; Component B: 6 months |
| Packaging Specifications | Component A: 18 kg in a 20 L container; Component B: 3 kg in a 4 L container |
| Flash Point | >23 °C (base, hardener, mixture) |
| density | 1.27 kg/L |
The surface to be coated shall be kept clean, dry and free from contaminants. Before application, surface cleanliness shall be assessed in accordance with ISO 8504:2000. Clean oil or grease with solvent to SSPC-SP1, and blast clean the surface to Sa2.5 or SSPC-SP10.
Avoid contact with moisture during storage and application.
Information is subject to the manufacturer's latest version; the manufacturer's latest TDS prevails.
The technical parameters on this page are taken from the product's original manufacturer technical datasheet, the copyright of which belongs to the manufacturer. If a rights holder considers the presentation inappropriate, contact us for verification and handling.
For more Q&A on selection, application, acceptance and defect diagnosis, seeFAQsection.
Packaging specifications and batch lead times are subject to actual availability. PleaseContact Uscontact us for project-based calculation.
