Surface Profile

The proper and effective preparation of a surface prior to coating is essential. Making sure

that the correct roughness-or profile-has been generated is essential.

If the profile is too low, the adhesion of the coating to the surface will be reduced. Too high

and there is the danger that the profile peaks will remain uncoated-allowing rust spots to occur.

Elcometer 122 Testex Replica Tape

Whereas comparators allow the estimation of surface roughness by both touch and sight, the

Elcometer 122 Testex Tape allows the user to measure the peak to valley height of the profile

and record it.

Elcometer 122 Testex Tape consists of foam with a non-compressible backing. The foam side is

rubbed onto a surface providing a permanent mould of the profile.

The Elcometer 124 Thickness Gauge is then used to measure the peak-to-valley height of a

surface profile formed in Elcometer 122 Testex Tape.

Can be used in accordance with:

ASTM D 4417-C

BS 7079-C5

BS ISO 8503-5

ISO DIS 8503-3

Dimensions

19 x 54mm test area

(0.75 x 2.13”) test area

Number of Tests

50 per roll

Elcometer 122 Coarse

Elcometer 122 X-Coarse

Elcometer 122 X-Coarse Plus

Range

Metric

20-50µm

38-114 µm

Profiles alone 114 µm

Imperial

0.8-2.0 mils

1.5-4.5 mils

Profile alone 4.5 mils

Part Numbers

E122----B

E122----C

E122----F