– it clogs faster than wider tips.

⚠️ disassemble the wire from the tube unless you have a repair jig – it’s almost impossible to reinsert correctly.

| Property | Typical Value for Isorex R310 1 | |----------|----------------------------------| | Viscosity | ~310 cP (at 25°C) | | Solid Content | 28–32% | | Sensitivity | 150–250 mJ/cm² (i-line) | | Contrast Ratio (γ) | > 3.5 | | Maximum Resolution | 0.8 µm (line/space) | | Spin Speed Range | 1000–4000 RPM | | Film Thickness (per coat) | 4–15 µm | | Storage Temperature | 4–8°C (refrigerated, dark) |

– An excellent vintage precision tool, but only recommended for enthusiasts or those already committed to manual cleaning routines. For most modern users, a new Rotring Isograph 0.1 is the smarter choice.

Note: Always consult the latest official SDS before handling.