The Tajima Rainproof Sumi Ink 180ml is a Japanese ink specially designed for marking out in wet or rainy conditions. Its formula allows for clear lines even on wet surfaces, with very little splashing during use.

This professional ink remains flexible after drying to prevent the string or cotton of the chalk line from hardening over time. It can also be easily reactivated with water. Resistant to cold and compatible with various materials such as wood, metal, and certain plastics, it is an ideal solution for outdoor work and challenging construction sites.