Does Developer Dry Time Impact Indication Strength?

  •  

Learn about the available properties of developers and the relationship between dwell time and inspection quality

By Steve Badger, Chemist

 

Basic Chemical Composition of Non-Aqueous Developer

The developer consists of two types of components; the solids that are responsible for developing indications and the solvent with which the solids are suspended in. The solvent the manufacture chooses determines the rate at which the developer dries. Developer manufacturers have many solvents to choose from. Each solvent has its own unique properties including flash point, odor, viscosity, vapor pressure, and evaporation rate all of which are carefully considered when deciding on the final formulation.  

 

Impact on Indications

In theory, a developer that dries rapidly would allow for increased throughput of test pieces, something that is desirable to all companies performing NDT. Knowing this, why doesn’t Magnaflux simply formulate their developers with the fastest evaporating solvent available? The answer is that we do not want to sacrifice inspection quality for speed.

Magnaflux developers have been formulated with a specific ratio of solvents that optimize the developer dry rate. The dry rate of the Magnaflux developer is optimized for both ease of application as well as maximizing the inspection quality. This ratio of solvents and their corresponding dry rate have a proven record of easy application and high inspection quality.

Developers which dry more rapidly than Magnaflux developers are typically more difficult to apply. The developer dries immediately on contact with the part, often leading to excessive developer unintentionally being applied. This excessive application of developer can lead to the obstruction of flaws on a part. The Magnaflux developer has been carefully formulated so that the dry rate allows for an even, consistent coat of developer to be applied, increasing the quality of the inspection. Typically, the amount of penetrant wicked from a flaw actually increases with dry time. With difficult to detect flaws, the slower drying solvent portion of the Magnaflux developer can aid the solids in bringing the penetrant to the surface of the part, increasing the quality of the inspection.

The solvent ratios of Magnaflux developers have been carefully formulated and tested by Magnaflux chemists to achieve the most advantageous developer dry time for the customer, prioritizing ease of application and high inspection quality over speed of development.

 

Published August 28, 2018

Subscribe to Magnaflux News:

Want to stay up on the latest NDT insights and articles from Magnaflux? 

Subscribe to Magnaflux updates above to get fresh news delivered to your inbox once a week.

Please wait while we gather your results.

Related Blog Entries

How Water Content Effects Viscosity of Fluorescent Penetrant

How Water Content Affects Viscosity of Fluorescent Penetrant [Case Study]

We show how a customer worked with the quality experts at Magnaflux to analyze data trends in the fluorescent penetrant to stay compliant

Read More...

Use of Method D Hydrophilic Emulsifier

Use of Method D Hydrophilic Emulsifier

Learn about the Method D liquid penetrant inspection nondestructive testing method

Read More...

More Than Just Test Results, PeneCert™ Test Services is a Partnership

More Than Just Test Results, PeneCert™ Test Services is a Partnership

Liquid penetrant testing services help verify that your systems are compliant and act as a partner in your NDT process

Read More...

NADCAP and Known Defect Standards

Understanding Nadcap System Performance Check and Known Defect Standards

Properly demonstrating the system performance check was the #2 Nadcap audit finding for penetrant systems. What do you need to do to comply?

Read More...

Contaminated Powder Developer

9 Daily Performance Checks for Liquid Penetrant Inspection Systems

Learn more on why penetrant daily checks are important for the integrity of your LPI Systems

Read More...

Understanding Safety Data Sheets

Understanding Safety Data Sheets: Do You Know What’s in the Chemicals You Handle?

We highlight the 5 major sections to understand on a Safety Data Sheets (SDS) in accordance with US OHSHA Hazcom 2012 GHS regulations

Read More...

Learn about the available properties of developers

Does Developer Dry Time Impact Indication Strength?

Learn about the available properties of developers and the relationship between dwell time and inspection quality

Read More...

UV-A Intensity: What’s Special About 5,000 µW?

UV-A Intensity: What’s Special About 5,000 µW?

Most UV-A lamps on the market are set to provide 5,000 µW/cm2 at a distance of 15 in / 38 cm. What’s so special about those numbers?

Read More...

Liquid Penetrant Aerosol Coverage Test

NDT Visible Liquid Penetrant Aerosol Coverage Test [Video]

See how three popular visible liquid penetrants perform in a coverage test to learn how many square feet each can covered

Read More...

Overview of Liquid Penetrant Inspection and Magnetic Particle Inspection Specifications

Overview of Liquid Penetrant Inspection and Magnetic Particle Inspection Specifications

Understanding ASTM and SAE/AMS specifications to select the corresponding Magnaflux product for Liquid Penetrant and Magnetic Particle Inspections

Read More...

NDT UV LED Lamps

Frequently Asked Questions About NDT UV LED Lamps

Frequently Asked Questions About NDT UV LED Lamps

Read More...

This technical paper shows examples of how Magnaflux can customize liquid penetrant equipment to me

Liquid Penetrant Equipment – Customized Solutions for Unique Needs

This technical paper shows examples of how Magnaflux can customize liquid penetrant equipment to meet part size and floor space requirements

Read More...

Benefits of Developer

Benefits of Using Developer During Liquid Penetrant Inspection [Case Study]

Learn how a automotive manufacturer increased indication detection in visible and UV light with developer.

Read More...

Visible Liquid Penetrant Inspection

Better Weld Inspections with Dye Penetrant [Case Study]

Learn how one engineering and fab company improved their NDT weld inspection quality with SKL-WP2 dye penetrant.

Read More...

Magnaflux Penetrant Testing

Exposing 10 Common Misunderstandings about Penetrant Testing

We reveal common misperceptions about liquid penetrant inspection we’ve seen in the field in recent years

Read More...

Magnaflux Penetrant Inspection

Higher Sensitivity Penetrant Improves Inspection Quality [Case Study]

In this case study, we help an aerospace customer improve inspection quality and consistency with two Magnaflux penetrants

Read More...

Magnetic Particle Crack Comparison

How Brightness and Contrast Impact NDT Inspections

How perception and vision can have a significant impact on probability of detection in non-destructive testing inspections.

Read More...

Dye Penetrant Testing on Pipe

How Low Temperatures Impact Dye Penetrant Testing

Learn how lower inspection temperatures affect the performance of dye penetrant testing cleaners, penetrant and developers

Read More...

Magnaflux Dye Penetrant Testing

How to Do Visible Dye Penetrant Testing [Video]

Watch an overview of the dye penetrant testing method according to ASTM E1417, including basic steps for NDT with an AMS 2644 Type 2 penetrant.

Read More...

Liquid Penetrant in Dip Tank

How to Maintain Penetrant Testing System Performance

Learn how liquid penetrant testing products lose performance over time and what to do to ensure penetrant test reliability.

Read More...

Dye Penetrant Infographic

The Ultimate Guide to Visible Dye Penetrant Testing [Infographic]

Some handy tips for beginners who are new to visible dye penetrant testing or NDT pros who want an easy reference guide.

Read More...

PeneCert Test Services

Understanding PeneCert Test Services [SlideShare]

Learn more about test services for in-use penetrant, emulsifiers and developers to comply with ASMT E1417 and AMS 2644.

Read More...

Magnaflux Penetrant Inspection

Understanding Type-, Batch- and In-Use-Testing for Liquid Penetrants [Case Study]

Learn the differences between type testing, batch testing and in-use testing for NDT liquid penetrants.

Read More...

Liquid penetrants for leak detection of ventilation systems

Using Fluorescent Penetrant for Ventilation System Leak Detention [Case Study]

Learn how to look at the recommended actions associated with the chemical risk assessment.

Read More...

AMS 2644 Penetrant Sensitivity Levels

A Guide to AMS 2644 Penetrant Sensitivity Levels

Understand fluorescent liquid penetrant sensitivity levels and how to find the right one for your application

Read More...

Penetrant Testing Demo

How to Do Fluorescent Liquid Penetrant Testing [Video]

Watch a demonstration of the penetrant inspection method according to ASTM E1417, including basic steps for NDT with an AMS 2644 Type 1 penetrant.

Read More...

Leak-Detection-Penetrant-Testing

Leak Detection with Penetrant Testing Process

Read more about using penetrant testing products to inspect for leaks by using fluorescent or visible/colored penetrant to enhance visual detection of leaks.

Read More...

Magnaflux Water Washable Penetrant

Water Washable versus Post Emulsifiable Penetrant – Which is Right for You?

Learn the differences between water-removable and non-water-washable liquid penetrant to figure out which is right for you

Read More...

Subscribe to Magnaflux News:

Magnaflux

155 Harlem Avenue
Glenview, IL 60025, USA
Telephone: +1 847-657-5300
Fax: +1 847-657-5388
Contact Magnaflux Customer Service

Select Your Country North America Mexico Brazil China Europe Russia India New Zealand, Australia, Japan, Southeast Asia
© 2018 Magnaflux - all rights reserved.
top

We have placed cookies on your computer to give you the best possible experience with our website. These cookies are also used to ensure we show you advertising that is relevant to you. If you continue without changing your settings, you are agreeing to our use of cookies to improve your user experience. You can click the cookie settings link on our website to change your cookie settings at any time.