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Karsten Tube Penetration Test – Q&A Guide

Karsten Tube Penetration Test – Q&A Guide 

Water can be an insidious and silent destroyer – and tests like the Karsten tube penetration test are invaluable when it comes to assessing everything from concrete to plaster. Want to know more about how the test works and why it’s so important when it comes to construction and manufacturing? Our Q&A guide is packed with everything you need to know.  

Karsten tube penetration test FAQs

Check out the most commonly asked questions about penetration testing. 

What is the definition of a Karsten tube penetration test?

The test is defined as a way to measure water absorption using a Karsten tube, sealant and water. It has a long history as a simple and fast way to test coating porosity in dielectric coatings on conductive substates, including concrete. The results can be charted to compare various surfaces.  

How do you perform a Karsten tube penetration test?

The Karsten tube penetration test method includes placing the dome tester against the surface that is being tested and forming a seal around the joint using a plastic sealing material. The sealing material is pressed around the rim of the dome until it is watertight. The dome is then filled with water to the zero mark and then pressed lightly. The water level is then closely measured to see how much is absorbed by the surface.    

How accurate is the Karsten tube penetration test? 

Karsten tube penetration test accuracy is high, as long the test is carried out correctly. There is some room for user error. Its main advantage is how simple, fast, repeatable, and non-destructive it is.  

How long does the Karsten tube penetration test take?

The Karsten tube penetration test takes, on average, anywhere between a few minutes and a few hours, depending on how absorbent the surface is. The user registers the volume of water absorbed during chosen time span, typically 30, 60 or 180 min, to determine how quickly water is penetrating the surface.  

<h4>Is the Karsten tube penetration test part of a vulnerability assessment?</h4> 

This test is often used to determine how vulnerable a building or building materials are to water penetration. This can indicate how a building might behave in adverse weather conditions, such as during a hurricane or rainstorm.  

Karsten tube penetration testing from TQC Sheen

Our TQC Karsten Tube Penetration Test includes everything you need to carry out a simple and effective test for measuring the degree or water penetration into building materials such as concrete, stone and plaster. It includes three tubes for horizontal surfaces and three tubes for vertical surfaces (or at choice any other combination of total six tubes, more are available on request) as well as a water bottle, marker, and putty to ensure there is a watertight seal between tube and surface. 

Testing you can trust at Industrial Physics

At Industrial Physics, we know just how important it is to have a specialist in your field, ready to help with any test and inspect question and concerns. That’s why we have so many specialists! For more insight into some of our testing solutions for building and construction, as well as paint and coatings, check out our TQC Sheen range