Diamine - Registrars Ink - Blue / Black 100ml

Diamine Registrar's Ink in 100ml offers a distinguished blue-black hue with excellent permanence, water resistance, and archival qualities, making it ideal for official documents, certificates, and professional writing. The larger 100ml plastic bottle provides extended use and convenience for those who need a reliable, high-quality ink for formal or archival purposes, ensuring consistent, elegant results over a longer period. Its deep, sophisticated tone maintains the classic appeal of the smaller size, but with increased capacity for frequent or bulk use. Due to the Iron Gall ink base, we suggest flushing out your pen regularly when it is used with this ink, we would advise that you use this with caution when using with a fountain pen, please do not leave in the pen for long periods of time. It's also acidic, which can damage steel nibs. Use with caution, and at your own risk.