--- product_id: 53201062 title: "Liquidraw Technical Pen Black Ink - 25 ml | Waterproof Drawing Ink | Refill Pot Compatible with Rotring Isograph Pens | Plastic Bottle & Screw-On Lid | Ideal for Drawing, Illustration & Calligraphy" brand: "liquidraw" price: "45.38 DT" currency: TND in_stock: true reviews_count: 13 category: "Liquidraw" url: https://www.desertcart.tn/products/53201062-liquidraw-technical-pen-black-ink-25-ml-waterproof-drawing-ink store_origin: TN region: Tunisia --- # Deep black pigment for sharp lines Waterproof & smudge-resistant 0.85 fl oz precision refill Liquidraw Technical Pen Black Ink - 25 ml | Waterproof Drawing Ink | Refill Pot Compatible with Rotring Isograph Pens | Plastic Bottle & Screw-On Lid | Ideal for Drawing, Illustration & Calligraphy **Brand:** liquidraw **Price:** 45.38 DT **Availability:** ✅ In Stock ## Summary > 🖤 Ink that means business — bold, precise, and built to last. ## Quick Answers - **What is this?** Liquidraw Technical Pen Black Ink - 25 ml | Waterproof Drawing Ink | Refill Pot Compatible with Rotring Isograph Pens | Plastic Bottle & Screw-On Lid | Ideal for Drawing, Illustration & Calligraphy by liquidraw - **How much does it cost?** 45.38 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/53201062-liquidraw-technical-pen-black-ink-25-ml-waterproof-drawing-ink) ## Best For - liquidraw enthusiasts ## Why This Product - Trusted liquidraw brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision Ink Refill:** 0.85 fl oz bottle perfectly sized for Rotring Isograph pens and dip pens, ensuring seamless, mess-free refills. - • **Smart Storage Design:** Durable plastic bottle with a secure screw-on lid keeps ink fresh and spill-free, so you’re always ready to create. - • **Versatile Creative Tool:** Trusted by architects, designers, illustrators, and calligraphers for studio, classroom, or office use—elevate your craft with confidence. - • **Rich, Deep Black Pigment:** Formulated for intense contrast and clarity, making every line pop on paper, tracing sheets, or layouts. - • **Archival-Grade Waterproof:** Fast-drying, waterproof ink that resists smudging and bleeding—ideal for professional-grade technical drawings and calligraphy. ## Overview Liquidraw Technical Pen Black Ink delivers 0.85 fl oz of waterproof, smudge-resistant pigment ink designed for flawless refills in Rotring Isograph and dip pens. Its deep black formula ensures high-contrast, archival-quality lines perfect for technical drawing, calligraphy, and detailed illustration. Packaged in a sturdy plastic bottle with a screw-on lid, it offers a clean, reliable refill experience favored by professionals and students alike. ## Description Liquidraw Technical Pen Black Ink - 0.85 fl oz / 25 ml | Waterproof Drawing Ink | Refill Pot Compatible with Rotring Isograph Pens | Plastic Bottle & Screw-On Lid | Ideal for Drawing & Calligraphy : desertcart.co.uk: Home & Kitchen Review: Quality ink and bottle - tips on opening bottle. - I used this to refill my Reform Refograph 0.35, a pen I have used for over 30 years. The ink runs smoothly and dries quickly, which is the most important fact. The bottle requires a little patience to open but I don't think this is because it is poor quality but because it is good quality. Here are my tips, which result in no spill or mess at all. Once you screw off the black cap and then lift off (not screw off) the clear plastic nozel cap you will find that the nozzle is solid down to the ink level. I found what works is to take a thin nail (which has a pointed end) - the bronze looking type you lightly tap in the wall to put up picture frames and just lightly tap it down into the nozzle. If you do this gently the nail will eventually pierce through to the ink effortlessly. Then you gently lift the nail out, wash the nail and put the clear nozel cap back on and screw back on the black cap. The nozel will now work perfectly and you will have a nice clean small hole into the bottle through the nozel, which will help avoid clogs. If you use a paper clip (which has a flat head), you will quickly find it difficult and then you will start applying too much pressure and then pop all the ink will spray out and you will be left with a mess and a screwed up nozzle. Hope this helps. Small bronze nail, gently tap tap in with hammer into the nozzle and then gently remove. Review: Excellent drawing ink - Really good waterproof ink for drawing pens. Designed to fill refillable cartridges especially in Rotring pens. ## Features - DEEP BLACK PIGMENT: Formulated with intense black pigment ink for rich, high-contrast lines; ideal for technical drawing, drafting, illustration, calligraphy & precise fine line sketching on paper, tracing sheets or layout work - COMPATIBLE PEN: Designed for seamless use with Rotring Isograph pen or dip pens, this 0.85 fl oz / 25 ml bottle offers reliable ink flow; easily refill your pen without needing to replace it - WATERPROOF & SMUDGE RESISTANT: This waterproof, bleed-resistant ink dries quickly & bonds to paper for clean, sharp results; suitable for archival artwork, architectural drafting, manga line art & detailed technical illustration - FOR ARTISTS & STUDENTS: Ideal for architects, engineers, designers, illustrators & calligraphy practice; a reliable black drawing ink for studio, classroom, office or professional art supplies - EASY STORAGE BOTTLE: Supplied in a sturdy plastic refill bottle with secure screw-on lid to keep ink fresh between uses; convenient, mess-controlled solution for regular technical pen refills ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01MSSLXPJ | | Best Sellers Rank | 29,496 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 29 in Bottled Ink | | Brand Name | Liquidraw | | Container Type | Bottle | | Country Of Origin | India | | Customer Reviews | 4.4 4.4 out of 5 stars (363) | | Global Trade Identification Number | 08906081270863 | | Ink Colour | Black | | Item Volume | 25 Millilitres | | Item Weight | 0.84 Ounces | | Manufacturer | Liquidraw | | Paint Type | Pigment | ## Product Details - **Brand:** Liquidraw - **Global Trade Identification Number:** 08906081270863 - **Item volume:** 25 Millilitres - **Package information:** Bottle - **Paint type:** Pigment ## Images ![Liquidraw Technical Pen Black Ink - 25 ml | Waterproof Drawing Ink | Refill Pot Compatible with Rotring Isograph Pens | Plastic Bottle & Screw-On Lid | Ideal for Drawing, Illustration & Calligraphy - Image 1](https://m.media-amazon.com/images/I/61f5dg80UzL.jpg) ## Questions & Answers **Q: Is this ink compatible with other Fine Line techincal pens in general?** A: The packaging doesn’t say the ink is for any specific technical pen so I should have thought it would be OK. I use mine in a staedtler marsmatic 700, 0.35 and it’s fine **Q: Is it suitable for calligraphy on canvas??** A: The ink is very thick and black so you may need to dilute with water or a medium. Test if possible on a small area of the canvas first if possible (Perhaps the side or reverse) to make sure it will dry and adhere to your surface the way you want it too. These drawing inks are not designed primarily for canvas but for paper. As the cost is low for this ink, might well be worth a try.? Hope it goes well. Acrylic inks are another possible alternative that are designed for canvas, but not nearly as thick. **Q: Could you use this ink in refillable Calligraphy Pens?** A: I'd advise against it - these inks use binders and other chemicals to make them water resistant and those chemicals will solidify in all the wrong places in your calligraphy pen. The solvents you need to break the ink apart may do damage to your fountain / calligraphy pen - they are not designed for that kind of cleaning. **Q: Suitable for rotring artpen?** A: Yes I would say so, I bought a Rotting ink pen that uses ink cartridges and this ink for the TechnoArt ink pen. It's similar but cheaper in price. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Quality ink and bottle - tips on opening bottle. *by J***D on 18 November 2020* I used this to refill my Reform Refograph 0.35, a pen I have used for over 30 years. The ink runs smoothly and dries quickly, which is the most important fact. The bottle requires a little patience to open but I don't think this is because it is poor quality but because it is good quality. Here are my tips, which result in no spill or mess at all. Once you screw off the black cap and then lift off (not screw off) the clear plastic nozel cap you will find that the nozzle is solid down to the ink level. I found what works is to take a thin nail (which has a pointed end) - the bronze looking type you lightly tap in the wall to put up picture frames and just lightly tap it down into the nozzle. If you do this gently the nail will eventually pierce through to the ink effortlessly. Then you gently lift the nail out, wash the nail and put the clear nozel cap back on and screw back on the black cap. The nozel will now work perfectly and you will have a nice clean small hole into the bottle through the nozel, which will help avoid clogs. If you use a paper clip (which has a flat head), you will quickly find it difficult and then you will start applying too much pressure and then pop all the ink will spray out and you will be left with a mess and a screwed up nozzle. Hope this helps. Small bronze nail, gently tap tap in with hammer into the nozzle and then gently remove. ### ⭐⭐⭐⭐⭐ Excellent drawing ink *by J***O on 13 February 2026* Really good waterproof ink for drawing pens. Designed to fill refillable cartridges especially in Rotring pens. ### ⭐⭐⭐⭐ Pen ink *by A***R on 31 December 2025* Good black ink. ## Frequently Bought Together - Technical Pen Waterproof Drawing Ink Black 25ml (Compatible with Rotring Isograph Pens) - rOtring Isograph Technical Drawing Pen, Liquid Ink, 23 ml, Black - Rotring Isograph Technical Drawing Pen, 0.40 mm --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/53201062-liquidraw-technical-pen-black-ink-25-ml-waterproof-drawing-ink](https://www.desertcart.tn/products/53201062-liquidraw-technical-pen-black-ink-25-ml-waterproof-drawing-ink) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-04-23*