---
product_id: 58440620
title: "Liquidraw Technical Pen Blue Ink – 25 ml | Waterproof Drawing Ink | Compatible with Rotring Isograph Pens | Plastic Refill Bottle, Screw-On Lid | Ideal for Illustration, Calligraphy & Drawing"
brand: "technoart"
price: "£3.83"
currency: GBP
in_stock: true
reviews_count: 1
url: https://www.desertcart.co.uk/products/58440620-liquidraw-technical-pen-blue-ink-25-ml-waterproof-drawing-ink
store_origin: GB
region: United Kingdom
---

# vibrant pigmented colors 25ml waterproof ink Rotring Isograph compatible Liquidraw Technical Pen Blue Ink – 25 ml | Waterproof Drawing Ink | Compatible with Rotring Isograph Pens | Plastic Refill Bottle, Screw-On Lid | Ideal for Illustration, Calligraphy & Drawing

**Brand:** technoart
**Price:** £3.83
**Availability:** ✅ In Stock

## Summary

> 🖋️ Ink your ideas with precision and waterproof brilliance!

## Quick Answers

- **What is this?** Liquidraw Technical Pen Blue Ink – 25 ml | Waterproof Drawing Ink | Compatible with Rotring Isograph Pens | Plastic Refill Bottle, Screw-On Lid | Ideal for Illustration, Calligraphy & Drawing by technoart
- **How much does it cost?** £3.83 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/58440620-liquidraw-technical-pen-blue-ink-25-ml-waterproof-drawing-ink)

## Best For

- technoart enthusiasts

## Why This Product

- Trusted technoart brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Efficient:** 25ml bottle size offers ample ink supply without cluttering your workspace—ideal for busy professionals on the go.
- • **Waterproof Confidence:** Ink that stands up to smudges and moisture, perfect for archival-quality work and long-lasting projects.
- • **Seamless Compatibility:** Designed to fit Rotring Isograph pens, making refills hassle-free and reliable for your trusted tools.
- • **Precision in Every Drop:** Specially formulated pigmented ink ensures crisp, fade-resistant lines for professional-grade technical drawings.
- • **Versatile Color Palette:** Available in 9 vivid colors including blue, black, pink, and more to elevate your creative and technical expression.

## Overview

The Technical Pen Waterproof Drawing Ink in Blue (25ml) by Technoart is a pigmented, waterproof ink specially formulated for technical and artistic use. Compatible with Rotring Isograph pens, it delivers vibrant, fade-resistant lines ideal for professional drawings and archival work. Available in multiple colors, this compact bottle ensures reliable refills for creative and technical professionals alike.

## Description

Technical Pen Waterproof Drawing Ink Blue 25ml (Compatible with Rotring Isograph Pens)

## Features

- Technical Pen Drawing Ink Bottle
- Blue Ink 25ml
- Specially formulated pigmented inks
- Waterproof Drawing Ink
- Available in Black, Green, Red, Yellow, Pink, Violet, Lemon Yellow, Brown and Orange

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Liquidraw |
| Brand | Technoart |
| Colour | blue |
| Ink Colour | Blue,Pink,Black |
| Manufacturer Part Number | NK100 - BL |

## Product Details

- **Brand:** Technoart
- **Package information:** Bottle
- **Paint type:** Watercolour
- **Item volume:** 25 Millilitres
- **Manufacturer:** Liquidraw

## Images

![Liquidraw Technical Pen Blue Ink – 25 ml | Waterproof Drawing Ink | Compatible with Rotring Isograph Pens | Plastic Refill Bottle, Screw-On Lid | Ideal for Illustration, Calligraphy & Drawing - Image 1](https://m.media-amazon.com/images/I/71ojXhJ2b4L.jpg)

## Questions & Answers

**Q: Does it work in fountain pens?**
A: I have used it in calligraphy pens and as long as they are in regular use things are fine. Don’t leave them unused for any length of time as the ink is waterproof so therefore “sets” in the ink channels and cleaning is time  consuming but not impossible. Fountain pens will be the same, don’t leave the pen unused for too long or the ink will set in the channels. Scoosh the pen through with warm water to rinse out and all will be well.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Five Stars
*by C***E on 2 December 2017*

Very good, dense and free flowing. Does not clog my Isograph Pens. Rapid delivery too.

## Frequently Bought Together

- Technical Pen Waterproof Drawing Ink BLUE 25ml (Compatible with Rotring Isograph Pens)
- Technoart Waterproof Drawing Ink, Red, 25ml (Bottle), Compatible with Rotring Isograph Pens
- Technical Pen Waterproof Drawing Ink GREEN 25ml (Compatible with Rotring Isograph Pens)

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**Shop now:** [https://www.desertcart.co.uk/products/58440620-liquidraw-technical-pen-blue-ink-25-ml-waterproof-drawing-ink](https://www.desertcart.co.uk/products/58440620-liquidraw-technical-pen-blue-ink-25-ml-waterproof-drawing-ink)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-28*