ALTANA Abrasion Tester User Manual

Page 10

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3TANDARD¬4ESTING¬-ETHODS

!34-¬$¬¬3TANDARD¬4EST¬-ETHOD¬FOR¬3CRUB¬
2ESISTANCE¬OF¬7ALL¬0AINTS¬
¬
)NTERIOR¬WALL¬PAINTS¬OFTEN¬BECOME¬SOILED¬ESPECIALLY¬
NEAR¬DOORWAYS¬WINDOWS¬AND¬IN¬WORK¬AND¬PLAY¬
AREAS¬4HIS¬TEST¬METHOD¬COVERS¬DETERMINATION¬OF¬
THE¬RELATIVE¬RESISTANCE¬OF¬DIFFERENT¬WALL¬PAINTS¬TO¬
EROSION¬WHEN¬REPEATEDLY¬SCRUBBED¬TO¬REMOVE¬THE¬
STAINS¬ENCOUNTERED¬DURING¬THE¬LIFE¬OF¬THE¬PAINT

0ROCEDURE

4HE¬TEST¬PAINT¬IS¬APPLIED¬TO¬A¬BLACK¬PLASTIC¬PANEL¬
!FTER¬CURING¬THE¬COATED¬PANEL¬IS¬PLACED¬OVER¬A¬
SHIM¬AND¬HELD¬IN¬PLACE¬ON¬A¬GLASS¬PLATE¬ON¬THE¬
ABRASION¬TESTER¬)T¬IS¬THEN¬SCRUBBED¬WITH¬A¬NYLON¬
BRISTLE¬BRUSH¬AND¬AN¬ABRASIVE¬SCRUB¬MEDIUM¬UNTIL¬
FAILURE¬ACCURS¬OVER¬THE¬SHIM