Elcometer 107 Guide D'utilisation page 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
purchased as an optional accessory, see
Section 6.3
Accessories' on page en- . 9
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.
www.elcometer.com
107 Full Kit and can also be
'Miscellaneous Spares &
2
1
2
3
4
7
R
en-6