Testex Replica Tape
R1001. Testex Tape Coarse (50 impressions) 20-64µm (0.8-2.5mils)
The Testex Tape when used with the Testex Gauge will measure the surface profile of blast-cleaned steel.
The Testex Gauge is used to measure the Testex Tape replica and determine the average maximum peak-to-valley height of the blast profile.
Available in the following Testex Tape ranges: Coarse 20–64μm and R1002 X Coarse 40–115μm.
Supplied in rolls of 50 impressions.
Compliant to the following Standards: ISO 8503-5, ASTM D4417 and NACE SP0287.
Technical Specification
The replica film in the Testex Tape consists of a layer of crushable plastic microfilm coated onto a polyester substrate of a highly uniform thickness 50μm (2mil). When compressed against a hard surface, the microfoam collapses to about 25% of its original thickness.
During compression, the foam acquires an impression of the surface against which it is burnished. The highest peaks on the test surface displace the fully compressed foam and come to rest against the polyester substrate. The deepest valleys on the test surface create the highest peaks on the replica.
This method measures an average maximum peak-to-valley profile. The anvils of the Testex Gauge flatten the replica profile slightly so that the reading equates to an average maximum value.