---
product_id: 334534701
title: "Aerol Dye Penetrant Developer Spray | Non-Aqueous Wet Developer | Grade 9920 | (278g / 400ml) Quick Crack Detection | Non Corrosive | For Welding & Maintenance"
brand: "aerol"
price: "£11.46"
currency: GBP
in_stock: true
reviews_count: 1
category: "Aerol"
url: https://www.desertcart.co.uk/products/334534701-aerol-dye-penetrant-developer-spray-non-aqueous-wet-developer-grade
store_origin: GB
region: United Kingdom
---

# Spray-on ease, no immersion needed Quick flaw detection in seconds Non-corrosive & metal-safe formula Aerol Dye Penetrant Developer Spray | Non-Aqueous Wet Developer | Grade 9920 | (278g / 400ml) Quick Crack Detection | Non Corrosive | For Welding & Maintenance

**Brand:** aerol
**Price:** £11.46
**Availability:** ✅ In Stock

## Summary

> 🔍 Spot flaws before they spot you – precision inspection made effortless!

## Quick Answers

- **What is this?** Aerol Dye Penetrant Developer Spray | Non-Aqueous Wet Developer | Grade 9920 | (278g / 400ml) Quick Crack Detection | Non Corrosive | For Welding & Maintenance by aerol
- **How much does it cost?** £11.46 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/334534701-aerol-dye-penetrant-developer-spray-non-aqueous-wet-developer-grade)

## Best For

- aerol enthusiasts

## Why This Product

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

## Key Features

- • **Spray & Inspect:** Effortless application with a reliable spray nozzle—ditch complicated setups.
- • **Instant Crack Reveal:** Pinpoint surface defects with rapid, high-contrast red dye visibility.
- • **Compact & Lightweight:** Portable 400ml can fits seamlessly into your professional toolkit.
- • **Metal-Friendly & Eco-Conscious:** CFC-free, non-corrosive formula protects your assets and the planet.
- • **Versatile Industrial Powerhouse:** Trusted across welding, automotive, shipbuilding, and engineering sectors.

## Overview

The AEROL Dye Penetrant Developer Spray is a 400ml non-aqueous wet developer designed for fast, visible crack detection on metals. Its white developer coating sharply contrasts red dye indications, enabling accurate flaw identification. Safe for most metals and compliant with international standards, it offers a non-corrosive, eco-friendly solution ideal for welding, automotive, construction, and maintenance professionals seeking reliable, spray-on inspection efficiency.

## Description

Product Description Cleaner Spray The Cleaner is a powerful, quick-drying solution, designed to clean/degrease the substrate and remove the excess penetrant. Using the cleaner on the target area gets rid of oil, dirt, and other contaminants. Penetrant Spray The Penetrant is a red dye solution that penetrates even the tiniest defect or crack. It is ideal for use in automotive, welding, & engineering, industries during welding and general maintenance. Developer Spray The Developer is a white coating that is applied at the end. It contrasts with the Penetrant to highlight the flaw in the machinery. One must wait for at least 10 minutes for the flaws to be highlighted. Highest Coverage Gives Quick Results Useful in Engineering & Construction Industries

Review: Good - I am using it for 3d scanning, will get an even and fine coat.

## Features

- Quick flaw detection – Designed for easy and visible identification of cracks and surface defects during inspection and maintenance.
- White developer coating forms a clear contrasting layer that highlights red dye indications for accurate flaw visibility and inspection results.
- Safe and non corrosive – Formulated to be gentle on most metals, CFC free, and compliant with international testing standards.
- Easy to use – Simple spray application ensures fast and dependable results without the need for immersion tanks or complex equipment.
- Wide industrial application – Ideal for welding, automotive, engineering, construction, shipbuilding, and general maintenance use.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B074X1V22W |
| Best Sellers Rank | #7,833 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #11 in Adhesive Sprays (Industrial & Scientific) |
| Brand | AEROL |
| Brand Name | AEROL |
| Compatible Material | Metal |
| Country of Origin | India |
| Customer Reviews | 4.7 out of 5 stars 17 Reviews |
| Grit Type | liquid |
| Item Dimensions | 9 x 9 x 22 Centimeters |
| Item Type Name | Dye Penetrant Test Spray |
| Item Weight | 0.29 Kilograms |
| Item dimensions L x W x H | 9 x 9 x 22 Centimeters |
| Manufacturer | Aerol Formulations Private Limited, Aerol Formulations Private Limited, H-39 Bali Nagar New Delhi-15 +919810072294 | customercare@aerolgroup.com |
| Manufacturer Contact Information | Aerol Formulations Private Limited, H-39 Bali Nagar New Delhi-15 +919810072294 | customercare@aerolgroup.com |
| Material | Wet Developer - 400 ml |
| Material Type | Wet Developer - 400 ml |
| Model Number | FM 9920 |
| Number of Items | 1 |
| Packer Contact Information | Khasra No 702-705, Kharkhauda Road Asaudha, Bahadurgarh, Asaudha, Haryana 124505, 092127 03248 |
| Part Number | FM 9920 |
| Unit Count | 1 Count |

## Product Details

- **Material:** Metal
- **Item dimensions L x W x H:** 9 x 9 x 22 Centimeters
- **Brand:** AEROL
- **Grit Type:** liquid
- **Item Weight:** 0.29 Kilograms

## Images

![Aerol Dye Penetrant Developer Spray | Non-Aqueous Wet Developer | Grade 9920 | (278g / 400ml) Quick Crack Detection | Non Corrosive | For Welding & Maintenance - Image 1](https://m.media-amazon.com/images/I/61VBqJiUQVL.jpg)
![Aerol Dye Penetrant Developer Spray | Non-Aqueous Wet Developer | Grade 9920 | (278g / 400ml) Quick Crack Detection | Non Corrosive | For Welding & Maintenance - Image 2](https://m.media-amazon.com/images/I/61RBa+5VpmL.jpg)
![Aerol Dye Penetrant Developer Spray | Non-Aqueous Wet Developer | Grade 9920 | (278g / 400ml) Quick Crack Detection | Non Corrosive | For Welding & Maintenance - Image 3](https://m.media-amazon.com/images/I/61QB4NwPxUL.jpg)
![Aerol Dye Penetrant Developer Spray | Non-Aqueous Wet Developer | Grade 9920 | (278g / 400ml) Quick Crack Detection | Non Corrosive | For Welding & Maintenance - Image 4](https://m.media-amazon.com/images/I/61yKvSI8HsL.jpg)
![Aerol Dye Penetrant Developer Spray | Non-Aqueous Wet Developer | Grade 9920 | (278g / 400ml) Quick Crack Detection | Non Corrosive | For Welding & Maintenance - Image 5](https://m.media-amazon.com/images/I/71-GOGcMsqL.jpg)

## Available Options

This product comes in different **Material Type** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good
*by K***Y on 6 March 2026*

I am using it for 3d scanning, will get an even and fine coat.

## Frequently Bought Together

- AEROL Dye Penetrant Test (Dpt) Developer Spray For Dye Penetrant Inspection, Grade 9920 (290G / 400Ml), Multicolor
- Aerol Dye Penetrant Test (DPT) Spray Kit (consisting of Red Dye Penetrant, Developer & Cleaner Sprays 400ml each) for Liquid Penetrant Inspection
- Aerol Dye Penetrant Test (DPT) Cleaner Spray for Dye Penetrant Inspection, Grade 9930 (277g/400ml)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-19*