Platinum's pigmented sepia ink contains ultra-fine particles giving it permanent features and making it fast to dry. Once dry this ink is waterproof and fade resistant so is ideal for signing important documents and for writing you wish to last for many years due to its archival properties.
Pigment Sepia comes in a 60ml glass bottle and is a brown colour. Each bottle contains an ink reservoir to help with filling your pen.
Pigment inks are great for art applications as they won't run off the page when water is applied. These Platinum pigment inks are designed to be safe to use in fountain pens but do require more care as it is recommended you clean the pen between fills and/or every few weeks.