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Measuring Equipment

Roughness Testers

Elcometer's lightweight and portable roughness testers ensure accurate surface profile measurement, improved coating adhesion and more effective corrosion protection.

Surface Roughness MeasurementMeasures surface profile and roughness prior to painting or protective coating treatment.
PortableLightweight and portable measurement solutions suitable for use in various environments.
Digital data transmissionSupports automatic measurement and data transfer to the ElcoMaster application.
Multiple measurement methodsVarious measurement methods according to need and applicable standard.
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When applying protective coatings, it is essential to measure surface roughness before painting. The surface profile and roughness directly affect coating adhesion: a surface that is too smooth will not retain the coating, while a surface that is too rough requires more material to fill the cavities between the "peaks".

Elcometer roughness testers are lightweight and portable measurement solutions for determining surface roughness before painting or protective coating treatment. Since the surface profile and roughness directly affect coating adhesion, accurate roughness measurement helps ensure a longer coating lifespan and better corrosion protection. A surface that is too smooth will not retain the coating, while a surface that is too rough requires more material and may cause corrosion problems.

Key benefits

  • Lightweight and portable – suitable for measurement in various environments
  • Ensure optimal coating adhesion and corrosion protection
  • Help avoid material waste and uncoated "peaks"
  • Various measurement methods according to need and standard
  • Digital data transfer to the ElcoMaster application
  • Elister helps select the appropriate measuring device according to the applicable standard

Roughness measurement methods

  • Stylus profilometer – a mechanical sensor measures the precise roughness profile and provides Ra, Rz and Rt values
  • Roughness combs (Testex Press-o-Film) – a fast method that records the surface profile using film; widely used in SSPC and NACE standards
  • Digital roughness testers – automatic measurement and data transfer to the ElcoMaster application

Standards and guidelines

  • ISO 8503-1 – standard profiles for steel
  • ISO 8503-4 – stylus instrument method
  • ISO 8503-5 – replica tape method (Testex)
  • SSPC-PA 17 – US standard
  • Recommended roughness range for steel structures: Rz 25–100 μm
Measurement valuesRa, Rz, Rt
Recommended roughness rangeRz 25–100 μm on steel structures
StandardsISO 8503-1, ISO 8503-4, ISO 8503-5, SSPC-PA 17
Improved adhesionEnsures optimal coating adhesion and corrosion protection.
Less material wasteHelps prevent material waste and uncovered "peaks".
Extended coating periodCorrect roughness measurement helps ensure a longer coating period.
Choosing the right equipmentElister helps you select the appropriate measuring instrument in accordance with the applicable standard.
Flexible useThis lightweight and portable solution is suitable for measurement in various environments.
Terasekonstruktsioonid

Common questions about this product.

Frequently asked questions

Which roughness parameters does the stylus profilometer measure?
The stylus profilometer measures the precise roughness profile using a mechanical sensor and provides Ra, Rz and Rt values.
What roughness range is recommended for steel structures?
Steel constructions are recommended to have a roughness range of Rz 25–100 μm.
What standards do the devices support?
The equipment complies with the standards ISO 8503-1 (surface profile comparators for steel), ISO 8503-4 (stylus instrument method), ISO 8503-5 (replica tape method, Testex) and SSPC-PA 17.
Can measurement data be transmitted digitally?
Yes, digital roughness testers enable automatic measurement and data transfer to the ElcoMaster application.
Which method is suitable for rapid surface profile measurement in field conditions?
Roughness combs (Testex Press-o-Film) are a quick method that records the surface profile using a film and are widely used in SSPC and NACE standards.

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Quality materialsDurable industrial quality and long service life.
Experienced partnerWe help design, install and maintain.
Support & spare partsFast help and spare-part availability throughout the lifecycle.