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BYK

Scrape Adhesion & Mar Tester

Scrape Adhesion This test method covers the determination of the adhesion of organic coatings such as paint varnish and lacquer when applied to smooth flat planar panel surfaces It has been found useful
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INFORMATION
QUOTATION
INFORMATION
DESCRIPTION TECHNICAL DESCR. DOWNLOADS
DESCRIPTION
Bal­anced Beam Scrape Adh­e­sion and Mar Tester

Used to per­form scrape adh­e­sion and mar resis­tance (scratch hard­ness) tests of coat­ings and sur­faces of vari­ous mate­rials.

  • For dif­fer­en­ti­at­ing the degree of adh­e­sion of coat­ings to sub­s­trates
  • Pro­vides rel­a­tive rat­ings for a series of coated pan­els

This instru­ment con­sists of a piv­oted beam with a 45° sty­lus holder, weight post and holder for sup­port­ing the total test load mounted on one end. On the other end of the beam is a
coun­ter­weight. A cam is rotated to lower and raise the sty­lus and a sam­ple bed mounted on ball bear­ings is used to move the test panel against the sta­tio­nary sty­lus.

Scrape Adh­e­sion Test

The sty­lus used for scrape adh­e­sion is a 1.6 mm (0.0625 inch) drill rod, bent to a 180° loop with 6.5 mm (0.256 inch) OD, har­d­ened, buffed and chrome plated. Sup­plied with the tester is a set of twelve slotted brass weights with stor­age rack. In the adh­e­sion test, weights are applied in 0.5 kg incre­ments to a max­i­mum of 10 kg.

Mar Resis­tance Test

By mov­ing a free edge of the test film against the nee­dle under a vari­able load expressed in grams, mar-resis­tance is deter­mined as the min­i­mum load in grams required to cut through the film to the sub­s­trate. In the mar (scratch resis­tance) test, weights can be applied in incre­ments from 10 grams to a max­i­mum of 12 kg.

TECHNICAL DESCR.
DOWNLOADS
BYK website
BYK Additives & Instruments
Systems to measure and analyse: Color & Appearance (Gloss meters, haze meters, orange peel and DOI meters) - Physical Properties such as abrasion, density, film thickness, hardness, drying time.....
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Prices are quoted in euro (taxes excluded) and apply in the Benelux (recycling fee included). They are subject to change without notice. We reserve the right to adjust pricing errors and to limit quantities.

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