Our Neutron Star fountain pen ink bursts onto paper with a sparkling array of blue and sheening iridescent purples, pinks, and reds with Twinkle pigments. Visible coloring will vary drastically by paper type and saturation, with high quality fountain pen papers producing secondary colors most prominently and lower quality papers staying closer to the ink's base blue hues.
Our swatch and writing sample is produced on 68gsm Tomoe River paper, which strongly emphasizes the secondary colors specifically (making our samples look purple on camera.) It's very difficult to display the color array of sheening inks on-screen.
Twinkle inks require additional pen maintenance and cleaning compared to their traditional ink peers and perform best in a pen with a medium sized nib or broader. Please don't use Twinkle inks in vintage pens or pens that cannot be disassembled for cleaning.
Every batch of Birmingham fountain pen ink is manufactured by hand in-house from a series of raw ingredients selected for quality and consistency. Each bottle is poured, capped, and labeled by hand.
Ink Ingredients Diluent - Highly purified laboratory grade water to ensure consistency Thickener - Tempers feathering Humectants - Influences dry-time Lubricants - Regulates flow & performance Surfactants - Regulates flow & performance Preservative - Adds shelf life for safe long-term use & storage Colorants - Powder dyes to bring colors alive in the solution
United States FREE USPS & UPS | Orders $50+ $9-12 USPS & UPS | Orders Under $50
Parcel Prep Time 2-5 Business Days | All orders excluding pens 2-3 Weeks | Built-to-order pens
Free shipping thresholds are calculated after any applicable coupons, promotions, or discounts, and before any applicable taxes or fees. Built-to-order pens purchased with additional items may be fulfilled in two separate parcels to minimize transit time and maximize the utility of our time in the workshop.
*Rates for Alaska, Hawaii, U.S. Protectorates, and other islands may display alternate pricing and carrier availability during checkout based on location and order characteristics. PO Box delivery addresses must select USPS. When an alternate carrier is selected for a PO Box we will manually update the carrier to USPS.
International Currently, we only ship to the USA & Canada. International customers are responsible for any customs, tariffs, brokerage fees, etc. that may be assessed. Inquire with your relevant local governing agencies for details.