Description
Hahnemühle Photo Rag® Ultra Smooth 305 gsm is a matte 100% cotton inkjet paper from Hahnemühle, sold here as a box of 30 4″ x 6″ sheets (order number 10640774). Hahnemühle Photo Rag® Ultra Smooth, another addition to the Photo Rag® family, is an especially smooth and silky soft paper for high-quality FineArt inkjet printing. The white cotton art paper has a discreet, very finely textured surface with a strikingly silky feel. The matt premium inkjet coating guarantees extraordinary print results with impressive reproduction of colour, detail and very deep black.
Photo Rag® Ultra Smooth specifications
| Hahnemühle order number | 10640774 |
|---|---|
| Size | 4″ x 6″, 30 Sheets |
| Weight | 305 gsm (EN ISO 536) |
| Caliper (thickness) | 480 µm (about 18.9 mil) |
| Base | 100% cotton |
| Surface | matte |
| Media colour | white |
| Whiteness | 94.0% |
| Opacity (ISO 2471) | 99.0% |
| Optical brighteners (OBA) | Moderate (per Hahnemühle datasheet) |
| pH | 8.5 |
| Acid-free / lignin-free | Acid-free and lignin-free |
| Calcium carbonate buffered | Yes |
| Archival | ISO 9706 conform (museum quality, per Hahnemühle) |
| Ink compatibility | Pigment and dye inkjet |
| Water resistance | very high |
| Drying | instant |
| Made by | Hahnemühle FineArt GmbH, Dassel, Germany |
Other sizes of Photo Rag® Ultra Smooth
- 8.5″ x 11″, 25 Sheets
- 11″ x 17″, 25 Sheets
- 13″ x 19″, 25 Sheets
- 17″ x 22″, 25 Sheets
- 17″ x 39′ Roll
- 24″ x 39′ Roll
- 36″ x 39′ Roll
- 44″ x 39′ Roll
- 60″ x 39′ Roll
- 64″ x 39′ Roll
Related Hahnemühle media
- Hahnemühle Torchon 285 gsm, 8.5″ x 11″, 25 Sheets
- Hahnemühle German Etching® 310 gsm, 8.5″ x 11″, 25 Sheets
- Hahnemühle William Turner 190 gsm, 8.5″ x 11″, 25 Sheets
- Hahnemühle Albrecht Dürer 210 gsm, 8.5″ x 11″, 25 Sheets
Sources: Hahnemühle product page Photo Rag Ultra Smooth and technical data sheet (hahnemuehle.com).
Choosing paper for a project? DTG (Digital Technology Group) runs the DTG Technology Center in Tampa, FL, where you can see printed samples. Call a print specialist at 800.681.0024 or email info@dtgweb.com.
Photo Rag® Ultra Smooth FAQ
What weight and thickness is Photo Rag® Ultra Smooth?
Photo Rag® Ultra Smooth is 305 gsm and 480 µm thick (about 18.9 mil), with a matte surface on a 100% cotton base.
Is Photo Rag® Ultra Smooth OBA-free and archival?
Hahnemühle lists its OBA content as moderate. It is acid-free and lignin-free and ISO 9706 conform (museum quality), per Hahnemühle.
Which inks work with Photo Rag® Ultra Smooth?
Hahnemühle says it is compatible with pigment and dye inkjet systems. Not sure about settings for your printer? Call DTG at 800.681.0024.
What is included in order number 10640774?
One box of Photo Rag® Ultra Smooth 305 gsm, 4″ x 6″, 30 Sheets. Not sure which size fits your printer? Call DTG at 800.681.0024.

Hahnemühle Photo Rag® Ultra Smooth 305 gsm Technical Data Sheet (PDF)





