Taber Wear is a measure of a coating’s ability to resist surface wear caused by repeated abrasion. It is commonly used to evaluate the durability and wear resistance of protective coatings exposed to mechanical contact during service.
Why is the Taber Wear Test Important?
Abrasion can gradually remove material from a coating surface, reducing protection and shortening service life.
The Taber Wear test helps assess how well a coating withstands repeated friction and wear.
Coatings with good abrasion resistance typically provide:
- Reduced maintenance requirements
- Longer service life
- Improved wear protection
- Better resistance to mechanical damage
How is the Test Performed?
In ASTM D4060, a coated specimen is mounted on a rotating platform and subjected to abrasion by two rotating wheels.
For the test condition:
- CS-17 wheels are used as the abrasive media.
- A 1 kg load is applied to each wheel.
- The specimen is subjected to 1000 abrasion cycles.
The coating is weighed before and after testing, and the material loss is determined.
What Does the Result Mean?
The result is typically reported as weight loss in milligrams (mg).
- Lower weight loss indicates better abrasion resistance and higher durability.
- Higher weight loss indicates the coating wears away more easily under abrasive conditions.
Example
A result of 20 mg weight loss after 1000 cycles indicates significantly greater wear resistance than a coating showing 100 mg weight loss under the same test conditions.
Summary
Taber Wear (ASTM D4060) evaluates a coating’s resistance to abrasive wear by measuring the amount of material removed during controlled abrasion. Using CS-17 wheels, a 1 kg load, and 1000 cycles, the test provides a reliable indication of coating durability and resistance to mechanical wear. greater resistance to surface deformation.
Source: Chesterton ARC Manuals, astm.org
Please note:
Despite thorough research, our description may contain inaccuracies regarding the most current ASTM procedures.
Our description should be considered solely as an overview for informational purposes.