About Allter

ALLTER is an asset protection company offering engineered solutions for the long-term protection of steel infrastructure. Our approach goes beyond coatings and combines surface preparation, reinforcement, cathodic protection, coating, testing and education into practical protection systems.

Our journey started in 2013, when Greenhard was established as a private equity company focused on investments in industrial technologies. In 2018 the company took a new direction and began building integrated corrosion protection solutions — the philosophy at the heart of ALLTER today. Our roots in visco-elastic technology go back further, to STOPAQ (1988), where both founders spent years developing and internationalizing pipeline corrosion protection.

We look beyond the coating itself. Successful corrosion protection depends on the complete system: the condition and preparation of the substrate, application conditions, coating selection, compatibility with cathodic protection, inspection, testing and the competence of the applicator.

ALLTER brings these elements together in one integrated engineering approach.

Our solutions are developed for critical steel assets in above-ground, below-ground, offshore and subsea environments. Applications include pipelines, field joints, valves, flanges, fittings, tanks, casings, risers, piles and other complex steel structures.

Yes. Real-world application conditions are rarely perfect. ALLTER develops systems for challenging environments, including damp substrates, sweating pipelines and changing temperatures.

Rather than relying only on ideal laboratory conditions, we believe protection systems should be evaluated against the conditions in which they will actually be applied and used.

Yes. ALLTER develops solutions for subsea maintenance, repair and corrosion protection, including applications that can be installed by divers. At our facilities, applications can be demonstrated and evaluated in a dedicated water environment before being taken into the field.

Depending on the application and operating conditions, yes. Temperature, substrate condition, existing coating, operating environment and required service life are considered when selecting the appropriate system. We can reproduce heated-pipe conditions during evaluation and application trials.

We believe surface preparation should be selected for the asset and application, rather than specifying one method for every situation. Depending on the project, this can include abrasive blasting, robotic blasting, power-tool surface preparation and other preparation technologies. The objective is to create the appropriate surface condition for the selected protection system.

Cathodic protection and coating should be considered as parts of the same corrosion-control strategy. ALLTER evaluates coating systems with CP performance in mind and can perform cathodic disbondment testing as part of system qualification.

Yes. Testing is part of our engineering process. Depending on the system and application, evaluation can include cathodic disbondment, impact resistance, holiday detection, adhesion and other relevant performance tests. Where applicable, systems can be evaluated against requirements and test methods referenced in standards such as the ISO 21809 series.

ALLTER develops and tests relevant pipeline coating systems with applicable requirements of the ISO 21809 series in mind. Compliance depends on the specific product, application and applicable part of the standard. We therefore prefer to define precisely which system, test method and acceptance criteria apply rather than making a generic compliance claim.

Yes. This is an important part of our approach. Share the operating conditions, substrate, existing coating, temperatures, environment and project requirements with us. Our team can help define an appropriate system and establish a testing and qualification program before field application.

Yes — and we encourage it. Customers can bring their own substrates, pipes, components or application challenges to ALLTER. Together, we can reproduce relevant conditions, apply the proposed system and evaluate its performance.

Bring us your corrosion problem. We will engineer the solution with you.

Absolutely. We believe seeing is believing. Customers, engineers, asset owners, contractors and applicators are welcome to visit ALLTER and experience our solutions under practical and simulated field conditions.

Our facilities are designed to demonstrate, test and train across the complete corrosion-protection process: robotic surface preparation, subsea and diving applications, casing filling, heated pipes and sweating pipelines. We can also demonstrate and evaluate coating performance through cathodic disbondment, impact resistance and holiday detection testing, together with other testing required to assess systems against ISO 21809 requirements.

Come to ALLTER. Test it. Challenge it. See it perform.

Yes. Even the best protection system depends on correct application. ALLTER provides hands-on training and education for contractors, applicators, inspectors and asset owners. Training can cover surface preparation, product application, inspection, repair and quality control.

Yes. Our involvement does not have to end when the product leaves our facility. For appropriate projects, ALLTER and its partners can support application trials, demonstrations, training, start-up and field implementation to help ensure the specified system is correctly applied.

That is exactly the kind of challenge we like. Not every corrosion problem can be solved by selecting a standard product from a catalogue. ALLTER combines materials, engineering, testing and application experience to develop practical solutions for unusual geometries and demanding operating environments.

A coating should protect the asset without unnecessarily exposing the people manufacturing or applying it — or the surrounding environment — to avoidable risks. For ALLTER, product safety, user-friendliness and environmental responsibility are engineering criteria, not afterthoughts.

ALLTER works internationally through its own organization and a network of qualified partners and distributors. Contact us with your country and application, and we will connect you with the appropriate technical or commercial team.

Start with the problem — not the product. Tell us what you need to protect, where it is located, its operating conditions and the performance you need. Our team will help determine the most appropriate protection concept.

Challenge us with your application.