Carbon Ink cartridges
Platinum Carbon Ink is our recommendation for those who need waterproof, permanent fountain pen ink. Most fountain pen inks are made with dyes, which typically are water-soluble and prone to fading over time. Carbon Ink is made with extremely small particles of carbon black pigment, one of the most durable and waterproof pigments on earth. Give it a few minutes to dry and you can safely use watercolor over lines drawn with Carbon Ink. Use it to address envelopes and rest assured the writing will be there, rain or shine. Or use it for drawings so that they can be displayed indefinitely without losing saturation.
This is a box of four cartridges for Platinum pens only. To use Carbon Ink with other pens and converters, check out the 60 mL bottle.
We ship all orders from our store in St. Louis, Missouri. 95% of orders are processed in 1-2 business days (Wednesday through Sunday). Shipping to the United States is always free for orders over $59. For orders under $59, domestic shipping rates start at $3.50. You can calculate your shipping cost in the cart or at checkout. For St. Louis residents, we also offer free curbside pickup. Just select "Pick Up" on the first page of checkout.
If there's a problem with your order, please contact our customer service team at firstname.lastname@example.org. If your order is damaged or defective, we will send you a prepaid return label and replace the item immediately. If you change your mind about an order, you can ship it back to us in new condition for a refund or exchange. However, if there is no error on our part, we cannot refund shipping charges or pay for return shipping. The deadline for all returns is 30 days from the delivery date. All clearance items, including our famous Mystery Box, are final sale.
We are an independent retailer trusted by artists since 2015, and our expert staff are happy to help you with any questions you might have about our products and services. We love helping our customers choose colors, build gift packages for friends, and get started with new tools and materials. We can also take special orders for items not listed on this site.
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