• Interstellar Bronze
  • Interstellar Bronze
  • Interstellar Bronze
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Fountain Pen Ink

Interstellar Bronze

PN100707

Vessel & Volume
$29
$29
$29
Free shipping offer* $75+

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Orders Ship From Pennsylvania

Bending spacetime and testing the limits of rich colorant saturation, Interstellar Bronze is a mesmerizing fusion of cosmic curiosity. This ultra-saturated hue shows a rich bronze-brown base that's overwhelmed with galactic fluorescent green sheen on slightly hydrophobic fountain-pen-friendly papers. Curiously purple-hued in the bottle, Interstellar Bronze is part of our traditional dye-colorant Keystone Formula writing ink series.

Since this is an extremely saturated ink, some pens may operate on the dry side. Frequent pen cleaning is suggested and could require extra effort, but the dye colorants are entirely water-soluble. This supersaturated hue performs best with broad point-grade nibs or thicker. Photographed color swatch was produced with cotton swab on Tomoe River paper.

    Featured writing ink is designed for a fountain pen paired with common quality writing papers. The 90mL volume delivers approximately 112 standard converter refills with a 0.8mL draw. We manufacture this product in Pennsylvania with domestic and imported ingredients.

    Interstellar Bronze
    Interstellar Bronze
    Interstellar Bronze

    Technician Log
    • Colorant Class: Water-soluble dye.
    • Saturation Profile: Rich colorant density; exhibits "dryer" flow dynamics. This property can be mitigated with our Dilution Solution elixir.
    • Vehicle Architecture: High-purity aqueous diluent with additives for rheology, hygroscopy, lubrication, surface tension, and biostatic stability.
    • Application Note: Optimal performance achieved with wet or broad+ nib geometry.
    • Maintenance Protocol: Increased pen cleaning frequency recommended.
    • Substrate Interaction: Secondary chromatic "sheen" properties manifest in saturation on coated "fountain-pen-friendly" papers.
    • Molecular Stability: Contains photosensitive colorant. Requires environmental hygiene and UV-mitigation to maintain color persistence.
    • Crystalline Integrity: Surface-level crystalline "sheen" deposits are non-lightfast and prone to photochemical degradation (universal among sheening inks).
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    A Chemistry Of Color

    How It's Made

    Our fountain pen ink formulas are developed in-house using fine colorant and a meticulously tuned vehicle. Every bottle reflects our commitment to performance, value, and creative exploration.

    Formula Guide

    We've compartmentalized our fountain pen ink recipes into four principal categories characterized by differentiating elements of the colorant component in the formula. A colorant is a dye or pigment that exhibits color. An ink vehicle is a series of chemicals used to transport colorant from storage reservoir to substrate (paper in our case). 

    Keystone Formula inks are engineered using water-soluble dyes to produce a broad spectrum of colors with a variety of unique and desirable writing properties. Fitting the bill for a traditional fountain pen ink, this series by far the most popular. 

    Delicate Formula inks are constructed with dyes selected for both performance and washability. Colors in this series will clean easily from most fabrics and surfaces with soap and water.

    Everlasting Formula inks are compounded with pigmented colorants to produce highly water-resistant and archival properties on most papers.

    Twinkle Formula inks are formulated using hybrid dye and pigment combinations to create a unique twinkling luster. 

    Sample Recipe

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    Prepared In Pennsylvania

    • From The Maker

      Skip the middleman and get the best experience by purchasing directly from a maker. As a tiny Pennsylvania based manufacturer, we're here to stand behind your purchase with expert guidance and support.

    • Packed With Care

      Glass bottles are cartoned and individually wrapped in repurposable cellulose wadding for added cushioning and protection in transit. Meticulous care is applied to every package to ensure product arrives safely and ready to enjoy.

    • Ships From PA

      All of our orders ship from Pennsylvania within 1-2 business days on average, unless otherwise prominently noted in the product description. Most packages are thoughtfully prepared by our part-time fulfillment team in Reading, PA.

    • Free Freight Offer

      Free shipping offer* active for orders $75+ within the continental USA.

      A flat $9 shipping rate is available for all other orders continental U.S. with calculated rates for Alaska & Hawaii.

      International shipping is not available.
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    Quality In The Details

    Our fountain pen ink formulas are developed in-house using fine colorant and a meticulously tuned vehicle. Every bottle reflects our commitment to performance, value, and creative exploration.