Elcometer 1542 Guia Del Usuario página 8

4 TEST PROCEDURE (continued)
4.3 TEST PROCEDURE: ASTM
1 Place the cutting edge on the sample.
2 Press down gently and pull the
adhesion tester towards you in one
steady movement to make a series of
parallel cuts approximately 20mm
long. Apply sufficient pressure to
ensure you cut right through the
coating to the surface of the substrate.
3 Place the cutting edge on the sample
at a 90° angle to the first cut and
repeat Step 2 to create a lattice
pattern on the coating.
4 Brush the sample lightly to remove
detached flakes or ribbons of coating.
A brush is supplied as standard with the
4
Elcometer 1542 Adhesion Tester Kit and
can also be purchased as an optional
accessory, see Section
Spares & Accessories' on page
5 Inspect the sample to ensure that the
cuts have penetrated all the way
through the coating.
6 Remove and discard two complete
turns of adhesive tape. Remove an
additional length of tape at a steady
rate and cut a piece approximately
75mm from this length.
7 Centre the cut piece of tape over the
lattice and smooth into place using a
finger. Rub the tape firmly using an
eraser on the end of a pencil to ensure
good adhesion between the tape and
the coating.
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6.3 'Miscellaneous
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