Epoxy powder coating

Hawle Armaturen AG have been known for decades for their outstanding corrosion protection. This is achieved by a high-quality epoxy powder coating in a fluidised bed process. To ensure the high standard of this coating, Hawle together with other companies has founded the GSK (Gütegemeinschaft Schwerer Korrosionsschutz von Armaturen und Formstücken durch Pulverbeschichtung e. V. - Quality Association for heavy duty Corrosion Protection of Valves and Fittings by Powder Coating) .

We are very pleased that our Head of Quality Management, Ertugrul Ince, is a member of the Board of Directors of the GSK. This enables Hawle Armaturen AG to optimally represent the interests of our customers.


The GSK sets requirements that go beyond those of DIN 30677-2 and DIN 3476. These include:

  • the use of epoxy powder exclusively
  • minimum layer thickness of 250 µm
  • food suitability according to KTW recommendations
  • bacteriological safety according to DVGW - W 270
  • non-porous
  • high adhesion forces between costing and substrate (minimum adhesive force16 N/mm2 after hot water storage)
  • resistance to abrasion
  • independent monitoring of quality requirements by the FEM materials testing institute




In addition, the GSK requires:

  • the creation of a test plan for the internal and external monitoring of products
  • self-monitoring of each production batch according to a standardised GSK sampling plan
  • unannounced external inspections by the FEM materials testing institute (2x / year)


GSK Certificate- Award Certificate

The award of the GSK Certificate recognises the outstanding quality of the Hawle Armaturen AG epoxy powder coating. Hawle Armaturen AG is therefore a reliable partner for the supply of high-quality products that meet the stringent demands of drinking water and wastewater technology.




Other topics that might interest you:


Our quality policy is a central component of our corporate policy and essentially forms the basis for our quality management system.

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Health and safety policy

We attach great importance to our occupational safety and health protection for our employees. All occupational safety specifications are documented.

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ISO Certificates

Quality and safety for the future.

Hawle Armaturen AG attaches great importance to quality and safety and is therefore certified in accordance with the international standards ISO 9001, ISO 14001ISO 45001 and ISO 3834-2.

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