---
product_id: 1601133
title: "Lineco pH Testing Pen for Paper or Paperboard Products. | Easy to Test Paper for Acid, Turn Purple On Neutrality Papers"
brand: "lineco"
price: "€ 21.37"
currency: EUR
in_stock: true
category: "Lineco"
url: https://www.desertcart.com.cy/products/1601133-lineco-ph-testing-pen-for-paper-or-paperboard-products-easy
store_origin: CY
region: Cyprus
---

# Purple = archival quality Instant pH detection Made in USA, trusted brand Lineco pH Testing Pen for Paper or Paperboard Products. | Easy to Test Paper for Acid, Turn Purple On Neutrality Papers

**Brand:** lineco
**Price:** € 21.37
**Availability:** ✅ In Stock

## Summary

> 🖋️ Don’t guess—know your paper’s future with a single stroke!

## Quick Answers

- **What is this?** Lineco pH Testing Pen for Paper or Paperboard Products. | Easy to Test Paper for Acid, Turn Purple On Neutrality Papers by lineco
- **How much does it cost?** € 21.37 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/1601133-lineco-ph-testing-pen-for-paper-or-paperboard-products-easy)

## Best For

- lineco enthusiasts

## Why This Product

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

## Key Features

- • **Preserve Your Legacy:** Ensure your documents and art last centuries by verifying alkaline reserves with ease.
- • **Effortless & Portable:** Compact pen design lets you test anywhere—no lab needed, just a quick swipe.
- • **Instant Archival Check:** Draw a line, see results in seconds—purple means your paper is archival-grade.
- • **Precision pH Indicator:** Detects pH 6.5+ with clear color change, ensuring your materials stand the test of time.
- • **Trusted American Craftsmanship:** Proudly made in the USA by Lineco, a leader in archival and framing supplies.

## Overview

The Lineco pH Testing Pen offers a fast, reliable way to determine the acidity or alkalinity of paper and paperboard products. Made in the USA by a trusted archival brand, it uses a chlorophenol red indicator that turns purple on papers with pH 6.5 or higher, signaling archival quality. Ideal for professionals preserving art, photography, or important documents, this pen helps ensure longevity by identifying materials that can withstand environmental challenges.

## Description

Lineco pH testing pen is an easy, convenient test pen to distinguish between alkaline paper and board, and acidic paper and board. The chlorophenol red indicator solution turns a definite purple color on any paper with a pH of 6.5 or higher.

## Features

- Basic Info: Material created and made in USA. Lineco is a leading and trusted brand for archival art, photography, and framing supplies
- Quick reflection: Shows within seconds if your paper products are archival. Clear or yellow line means bad - Purple line means archival
- Storage condition: Paper can be reasonably long-lived if its pH is 6.0 or higher, especially if it is well made and carefully used and stored. In order to last for centuries in today's polluted air, it must have an alkaline reserve and this usually means a pH of 7.0 or greater
- Easy to use: Simply draw a small line on the material you wish to test. The line drawn will turn purple on most papers if there is an indication of pH neutrality
- Please note: This is a pH indicator only. Unreliable results may occur on colored, coated, or unbuffered materials

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000KNJCSS |
| Best Sellers Rank | #35,893 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #288 in Drawing Pens |
| Brand Name | Lineco |
| Customer Reviews | 4.4 4.4 out of 5 stars (211) |
| Included Components | Lineco pH Testing Pen for Paper or Paperboard Products. |
| Item Weight | 0.01 Kilograms |
| Manufacturer | Lineco |
| Material Type | Paper |
| Model Number | L533-0023 |
| Part Number | L533-0023 |
| Sterility Rating | 6.8 and above |
| UPC | 099295003506 099295530811 |
| Unit Count | 1.0 Count |
| Warranty Description | 1 Year Limited Warranty |

## Product Details

- **Brand:** Lineco
- **Manufacturer:** Lineco
- **Ph Range:** 6.8 and above
- **UPC:** 099295003506 099295530811
- **Unit Count:** 1.0 Count

## Images

![Lineco pH Testing Pen for Paper or Paperboard Products. | Easy to Test Paper for Acid, Turn Purple On Neutrality Papers - Image 1](https://m.media-amazon.com/images/I/61FB-6FHRgL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Does the pen tip turn color after the first several uses? Mine went from yellow to purple.**
A: Mine's half of the tip turned from orange into purple the first time I used it. Some say it will fade back over time while others say it's permanent. I don't know about validity of readings but I suppose they should still be consistent.

**Q: can this be used on fabrics?**
A: Sorry, it cannot. It only can be sued on paper or paperboard products. Thank you.

**Q: Would this work to test stickers?**
A: I haven't tried it specifically on stickers, but it has worked on all the various surfaces I have tested so far.

**Q: Will this work on black paper**
A: I'm not sure that it would, but I haven't specifically tried it on black paper.

## Frequently Bought Together

- Lineco pH Testing Pen for Paper or Paperboard Products.
- LINECO Neutral pH Adhesive 8 Oz, Acid-Free, All-purpose Glue, Dries Clear and Remains Flexible. Used for Bookbinding and Book Repair, Framing, Collages, Paper Art and Crafts

---

## 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.com.cy/products/1601133-lineco-ph-testing-pen-for-paper-or-paperboard-products-easy](https://www.desertcart.com.cy/products/1601133-lineco-ph-testing-pen-for-paper-or-paperboard-products-easy)

---

*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-08-14*