ABREX®-ABRASION, is a soft-chemo-mechanical fingertip & hand abrasion tester. The simulated wear pattern matches reality with 99% accuracy. It is a highly complex abrasion process which involves:

• A 45° angle impact driven by a dynamic pneumatic cylinder attached with a viscoelastic fingertip under a defined load;

• Then a friction rubbing or tumbling motion between the sample and a textile containing dirt, dandruff, oil, sweat or various types of testing liquids;

Followed by a retraction movement with or without the contact at the surface depending on the application.

ABREX®-E has two separate modes: standard ABREX and an additional E mode. Within the standard mode, various tests can be performed according to IEC 68-2-70/DIN 60068. The additional E mode is designed to simulate:

• Human fingernail scratch which occurs often in the interior parts of the car

• Shoe sole scratch test which occurs often when the customer entering the car with the unavoidable shoe sole scratch/scurff marks on the driver’s side door and the bottom part of the driver’s seat

Principle

ABREX®-E can be used for the standard finger abrasion and hand abrasion test according to many standards and specifications. With the additional E-box, two scratch tests can be performed manually.

• Scratch resistance can be evaluated with two methods:

• One stroke with increasing load until clear scratch appears;

• Repeating cycles with the same load