{"product_id":"18ml-invisible-uv-fluorescent-ink-for-dip-glass-pens","title":"18ml Invisible UV Fluorescent Ink for Dip \u0026 Glass Pens","description":"\u003cp\u003e\u003cstrong\u003eInvisible UV Ink for Creative, Secure Writing\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis 18 ml Non-Carbon Invisible UV Fluorescent Ink is designed for use with glass dip pens, metal dip nibs, and compatible fountain pens, delivering clean, reliable performance for both creative and security-focused applications. Under normal light the ink appears nearly invisible, while under UV\/black light it reveals a bright fluorescent glow, ideal for discreet notes, decorative effects, and special projects.\u003c\/p\u003e\u003cp\u003eFormulated without carbon pigments, this liquid ink helps reduce the risk of clogging fine nibs and is easy to clean from most non-porous pen surfaces. The 18 ml bottle offers a practical volume for repeated use in art, journaling, event stationery, and classroom or office activities. Use it on light-colored, uncoated papers for the clearest UV effect, whether you are writing, sketching, or adding hidden details to printed materials.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy It's a Smart Choice\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInvisible in normal light\u003c\/strong\u003e - Stays discreet on the page until illuminated with a UV\/black light, ideal for secret messages, marking, or subtle design layers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBright fluorescent response\u003c\/strong\u003e - Produces a clear, readable glow under UV light, suitable for parties, events, crafts, and educational demonstrations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-carbon, pen-friendly formula\u003c\/strong\u003e - Designed to be gentle on glass dip pens and compatible fountain pens when used and cleaned correctly, helping maintain smooth ink flow.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is a UV light included with the ink?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e No. A separate UV or black light source is required to see the fluorescent effect.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can I use this ink in any fountain pen?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It is best suited to pens that can be fully disassembled and cleaned. Rinse thoroughly after use to avoid residue.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e On which paper does the ink work best?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Light-colored, uncoated paper provides the strongest invisible and UV-visible contrast.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is the writing completely invisible without UV light?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e On most light papers it appears very faint or nearly invisible, but a slight trace may be visible depending on the surface and lighting.\u003c\/p\u003e","brand":"HitMyNeed","offers":[{"title":"Default Title","offer_id":49889331478805,"sku":"200000533","price":21.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0831\/6105\/5509\/files\/18ml-invisible-uv-fluorescent-ink-for-dip-glass-pens-1-hitmyneed.jpg?v=1777508467","url":"https:\/\/hitmyneed.com\/products\/18ml-invisible-uv-fluorescent-ink-for-dip-glass-pens","provider":"HitMyNeed","version":"1.0","type":"link"}