---
product_id: 6520976
title: "Isograph Technical Drawing Pen, Liquid Ink, 23 ml, Black"
brand: "rotring"
price: "NT$686"
currency: TWD
in_stock: true
reviews_count: 13
category: "Rotring"
url: https://www.desertcart.tw/products/6520976-isograph-technical-drawing-pen-liquid-ink-23-ml-black
store_origin: TW
region: Taiwan
---

# Smooth, consistent ink flow High-opacity black liquid ink Precision stainless steel nib Isograph Technical Drawing Pen, Liquid Ink, 23 ml, Black

**Brand:** rotring
**Price:** NT$686
**Availability:** ✅ In Stock

## Summary

> 🖊️ Elevate your lines, own your craft — precision that professionals swear by!

## Quick Answers

- **What is this?** Isograph Technical Drawing Pen, Liquid Ink, 23 ml, Black by rotring
- **How much does it cost?** NT$686 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/6520976-isograph-technical-drawing-pen-liquid-ink-23-ml-black)

## Best For

- rotring enthusiasts

## Why This Product

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

## Key Features

- • **Mix & Match Your Palette:** High color purity ink allows seamless mixing of colored inks for custom shades and effects.
- • **Trusted Durability & Warranty:** Backed by a 2-year limited warranty, this pen is built to perform and last through countless masterpieces.
- • **Flawless Precision Every Stroke:** Hand-finished stainless steel nib ensures ultra-smooth, exact lines for your technical and creative projects.
- • **Versatile Surface Compatibility:** Perfect adhesion on tracing paper, vellum, drawing paper, and lineboard—your go-to for all mediums.
- • **Ink That Stands the Test of Time:** Lightfast, high-opacity ink guarantees sharp, fade-resistant drawings and reproductions.

## Overview

The rOtring Isograph Technical Drawing Pen features a hand-finished stainless steel calligraphy nib paired with high-opacity, lightfast black liquid ink. Designed for superior adhesion on multiple paper types, it delivers smooth, precise lines ideal for technical drawings and artistic work. With a 2-year warranty and a cult following among professionals, it’s a must-have tool for millennial managers and creatives who demand reliability and style in their workflow.

## Description

Designed and manufactured with precision for optimum performance. This is an easy-flowing, high opacity ink with excellent adhesion, suitable for tracing paper, vellum, drawing paper and lineboard. Calligraphy nibs, crafted from the finest stainless steel and hand finished for a smooth, precision inking edge. It's lightfast and suitable for all forms of reproduction. Ink has high color purity. Colored inks can be mixed with one another. Limited warranty: guaranteed for 2 years from original purchase date against defects in materials or workmanship. rOtring Isograph Technical Drawing Pen, Liquid Ink, 23 ml, Black.

Review: Just as described - Quality ink just as explained
Review: Little bit runny, not as thick - Good ink, just a bit runny compared to my usual ink I use.

## Features

- This is an easy-flowing, high opacity ink with excellent adhesion, suitable for tracing paper, vellum, drawing paper and lineboard.
- Calligraphy nibs, crafted from the finest stainless steel and hand finished for a smooth, precision inking edge.
- It's lightfast and suitable for all forms of reproduction.
- Ink has high color purity. Colored inks can be mixed with one another.
- Calligraphy nibs, crafted from the finest stainless steel and hand finished for a smooth, precision inking edge. Not for any use on skin, including tattoos.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000SO412G |
| Best Sellers Rank | #49,918 in Office Products ( See Top 100 in Office Products ) #7 in Technical Pens |
| Brand | Rotring |
| Color | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,798) |
| Date First Available | October 13, 2011 |
| Ink Color | Black |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.2 ounces |
| Item model number | S0194660 |
| Manufacturer | Sanford |
| Manufacturer Part Number | S0194660 |
| Material Type | stainless steel |
| Number of Items | 1 |
| Product Dimensions | 3.89 x 1.33 x 0.75 inches |
| Size | 0.8 fl oz |

## Product Details

- **Brand:** Rotring
- **Global Trade Identification Number:** 04006856032413, 04006856591170
- **Item Volume:** 23 Milliliters
- **Package Information:** Bottle
- **Paint Type:** Watercolor

## Images

![Isograph Technical Drawing Pen, Liquid Ink, 23 ml, Black - Image 1](https://m.media-amazon.com/images/I/61dUyyuBjrL.jpg)

## Questions & Answers

**Q: Is this ink waterproof?**
A: Hello,It is water‐soluble.It is not waterproof.Thank you.

**Q: How can I thin this ink for small tip technical pens without diluting it?**
A: Thank you for your interest in our Rotring brand. This ink is only meant to be used with our Isograph line of pens and is not suitable for non-isograph technical pens.

**Q: Does this ink work with alcohol markers?**
A: If you're asking if alcohol dissolves (smears) this ink, no, not in my experience. I use the Isograph pens (with this ink) for my marker drawings with no problem at all. I also use it to line my watercolor stuff, also no smearing.

**Q: Can i use this ink with a rapidograph pen or only rotring isograph pen?**
A: Please be advised that only rOtring Isograph pens have refillable ink reservoirs ideal for drawers using bottle inks. The rOtring Rapidograph pens are compatible with rOtring 's unique capillary cartridges exclusively.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Just as described
*by T***R on December 20, 2025*

Quality ink just as explained

### ⭐⭐⭐⭐⭐ Little bit runny, not as thick
*by L***Y on November 19, 2025*

Good ink, just a bit runny compared to my usual ink I use.

### ⭐⭐⭐⭐⭐ High Quality
*by L***R on June 10, 2025*

I bought this ink to use in my Isograph pens. The shape and fine tip makes the ink easy to load into the pens and appears to be very water resistant, if not waterproof. It flows well and when I want to clean out a pen, the process goes well.

## Frequently Bought Together

- rOtring Isograph Technical Drawing Pen, Liquid Ink, 23 ml, Black
- Rotring Isograph Technical Drawing Pen, 0.35 mm
- rOtring 1903394 Isograph Technical Drawing Pen, 0.1 mm

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**Shop now:** [https://www.desertcart.tw/products/6520976-isograph-technical-drawing-pen-liquid-ink-23-ml-black](https://www.desertcart.tw/products/6520976-isograph-technical-drawing-pen-liquid-ink-23-ml-black)

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-01-22*