The TABER Multi-Finger ScratchTester - Model 710 is used to measure
the relative resistance or susceptibility of a material surface to
scratching, marring, gouging, scraping, engraving and other similar
physical damage not classified as ordinary wear. Based on the
apparatus described in popular automotive specifications, the
instrument is commonly referred to as a five-finger (five-arm)
scratch & mar tester and most often used to evaluate plastics.
1. Precision instrument measures damage to surfaces not classified
as ordinary wear.
Using precision tips, the Taber Multi-Finger Scratch/Mar Tester is
used to measure the susceptibility of material surfaces to
scratching, marring, gouging, and other similar physical damage not
classified as ordinary wear.
2. Design based on five-finger scratching device described in
Specimens are secured to a pneumatically driven platform. Five
independent spline-shaft fingers with varying weights exert a
constant, vertical load on the test specimen as it travels under
interchangeable scratch tips. Spline-shaft fingers are mounted on a
rigid gantry platform. Support rests allow the operator to secure
individual shafts in a rest position, permitting the testing of
nonstandard width samples.
3. Test a wide range of products.
The `five-finger` scratch tester has been popular in the automotive
industry for testing smooth or grained plastics commonly used in
ornamentation or trim. Useful for quality control as well as
material or product development, the Multi-Finger Scratch / Mar
Tester is ideal for evaluating plastics, rigid organic materials,
paints and coatings, soft metals, linoleum, plus many others.
· Ford BN 108-13 : Resistance to Scratching
· General Motors DMN3943
· Danmler-Chrysler LP-463DD-18-01:Automotive standards