Elcometer 122 Testex Replica Tape (part numbers in the E122 series) takes a permanent mould of a blast-cleaned surface profile so that the peak-to-valley height can be measured with a thickness gauge. Getting the surface profile right is essential before coating: too low and adhesion is reduced, too high and the profile peaks remain uncoated, allowing rust spots to start. The tape is particularly useful on curved or hard-to-reach areas where other methods are impractical.
The tape consists of a foam pad bonded to a non-compressible mylar backing strip of 50µm. The foam side is rubbed into the surface and the backing is burnished with a swizzle stick until it turns uniformly grey, capturing an accurate replica of the peak-to-valley profile. The replica is then measured with a thickness gauge such as the Elcometer 124, subtracting the 50µm backing to give the profile. There are 50 tests in each roll.
It is supplied in five profile ranges so the grade can match the profile being measured: Coarse Minus (12 to 25µm), Coarse (20 to 38µm), Average (38 to 64µm), X-Coarse (64 to 115µm) and X-Coarse Plus (greater than 115µm), in single rolls or packs of 10, 50 and 100. The Elcometer 122 Testex Replica Tape conforms to ASTM D 4417-C, ISO 8503-5, NACE RP0287, SSPC PA 17 and US Navy NSI 009-32, the standards used in surface preparation and coating inspection. Supplied by BAMR, South Africa's authorised distributor.
Elcometer 122 Testex Replica Tape
The Elcometer 122 Testex Replica Tape is designed to provide a permanent mould of the surface profile, which can then be measured using a thickness gauge. It consists of foam with a non-compressible backing and is available in four profile ranges to measure various surface roughness levels.
- Permanent mould of surface profile Creates an accurate replica of the peak-to-valley profile for measurement purposes
- Non-compressible mylar backing Provides a 50µm backing strip that maintains consistent reference thickness
- 50 tests per roll Each Replica Tape roll contains 50 individual tests
- Five profile ranges available Coarse Minus (12-25µm), Coarse (20-38µm), Average (38-64µm), X-Coarse (64-115µm), and X-Coarse Plus (>115µm)
- Easy application Simply rub the foam side into the surface and rub the backing with a swizzle stick until uniformly grey
- Suitable for curved and hard-to-reach areas Particularly useful for measuring surface profile on difficult surfaces
Also available to buy online at GaugeIt, our online store.
When to use the Elcometer 122 Testex Replica Tape
Use Testex Replica Tape when you need a permanent record of a blast-cleaned surface profile, including on curved or hard-to-reach areas where a probe is awkward to sit. You press the foam into the surface to capture a mould of the peak-to-valley profile, then measure it with a thickness gauge.
- 1Keeps a physical record of the profileThe tape forms a permanent replica that can be archived and re-measured, giving documentary proof that surface preparation met the specification.
- 2Reaches awkward surfacesBecause it is pressed into the surface, it captures profile on curved and hard-to-reach areas where a fixed probe cannot sit cleanly.
- 3Match the tape to the expected roughnessFive profile ranges, from Coarse Minus at 12 to 25 microns up to X-Coarse Plus above 115 microns, let you pick a grade suited to the profile you expect to read.
Lower-budget alternatives
Ten minutes on a call with one of our specialists usually saves you from buying the wrong instrument.
Book a 10-minute callOr , our product assistant, for an instant answer.
When to use this
When to use the Elcometer 122 Testex Replica Tape
Use Testex Replica Tape when you need a permanent record of a blast-cleaned surface profile, including on curved or hard-to-reach areas where a probe is awkward to sit. You press the foam into the surface to capture a mould of the peak-to-valley profile, then measure it with a thickness gauge.
- 1Keeps a physical record of the profileThe tape forms a permanent replica that can be archived and re-measured, giving documentary proof that surface preparation met the specification.
- 2Reaches awkward surfacesBecause it is pressed into the surface, it captures profile on curved and hard-to-reach areas where a fixed probe cannot sit cleanly.
- 3Match the tape to the expected roughnessFive profile ranges, from Coarse Minus at 12 to 25 microns up to X-Coarse Plus above 115 microns, let you pick a grade suited to the profile you expect to read.
Lower-budget alternatives
Ten minutes on a call with one of our specialists usually saves you from buying the wrong instrument.
Book a 10-minute callOr , our product assistant, for an instant answer.
Specifications
Specifications
| Description | Profile Range | 1 Roll | Pack of 10 | Pack of 50 | Pack of 100 |
|---|---|---|---|---|---|
| Elcometer 122 Coarse Minus | 12 - 25μm | E122-A1 | E122-A10 | E122-A50 | E122-A100 |
| Elcometer 122 Coarse | 20 - 64μm | E122-B1 | E122-B10 | E122-B50 | E122-B100 |
| Elcometer 122 X-Coarse | 38 - 115μm | E122-C1 | E122-C10 | E122-C50 | E122-C100 |
| Elcometer 122 X-Coarse Plus | 116 - 127μm | E122-F1 | E122-F10 | E122-F50 | E122-F100 |
| Profile | Error (Coarse) | Error (X-Coarse) |
|---|---|---|
| microns | microns | microns |
| 25 | 8 | not applicable |
| 50 | not applicable | 18 |
| 75 | not applicable | 27 |
| 100 | not applicable | 37 |
Packing List
Packing List
Standards
Standards
Accessories
Accessories
| T12222498 | Swizzle Sticks (Pack of 5) |
Downloads
Videos
Videos
Frequently asked questions
Which Elcometer 122 profile range should I specify for my application?
Choose based on your surface roughness level. Coarse Minus (12 to 25 micrometres) suits light blast finishes; Coarse (20 to 64 micrometres) covers standard blast; X-Coarse (38 to 115 micrometres) handles heavy blast; X-Coarse Plus (116 to 127 micrometres) is for maximum profile.
What measurement accuracy do I get with the Elcometer 122?
Measurement error depends on profile level. At 25 micrometres you can expect 8 micrometres error; at 50 micrometres, 18 micrometres; at 75 micrometres, 27 micrometres; and at 100 micrometres, 37 micrometres. Error increases with profile depth.
How do I measure the replica tape once I have taken it from the surface?
The tape creates a permanent mould of the surface profile. Measure the moulded foam with a standard thickness gauge. The non-compressible backing ensures you get a stable, accurate reading of the profile.
Why does the Elcometer 122 have foam with non-compressible backing?
The foam conforms to surface irregularities to capture an exact profile mould, whilst the non-compressible backing prevents compression during measurement and handling, ensuring repeatable results.
What bulk pack options are available for the Elcometer 122?
All four profile ranges come in packs of 1 roll, 10 rolls, 50 rolls, or 100 rolls. Choose based on your testing frequency and storage capacity.
Quote on the Elcometer 122 Testex Replica Tape by close of business.
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Tell us about your application and we will send a quote with lead time and accessories.