KHIA headerKnow-How in Action


Belzona Protects Rubber Pipes At Wwtp From Uv Attack



Water / Wastewater (WATR)


Áreas Know-How:

Valves, Pipes and Fittings (VPF)


Cliente / ubicación:

Wastewater Treatment Plant, BC, Canada


Fecha de aplicación:

August 2004


Situación de aplicación:

Flexible rubber transfer pipes on digester



UV attacks the rubber over a period of time causing it to degrade and eventually become brittle.



Belzona® 3211 (Lagseal)

Belzona® 3921 (GSC Conditioner)



Rubber pipe with stainless steel flanges


Método de aplicación:

Application carried out in accordance with a modified version of Belzona System Leaflet VPF-12.


Hechos Belzona:

This application has provided protection on similar pipes for more than 10 years. The life of unprotected pipes was 3-5 years.


Descripciones de fotografías

  1. Preparation of flexible hoses in progress. All pipes are tightly wrapped with a polythene film to prevent bleed through of the pitch from the rubber component.
  2. The flanges are ground and coated with Belzona® 3921 GSC Conditioner.
  3. Application of Belzona® 3211 in progress. Belzona® 9311 Reinforcement cloth is incorporated into the 1st coat.
  4. Completed application.
Case study pic one


 Case study pic two


 Case study pic three


 Case study pic four


Para obtener más información acerca de los productos Belzona visite: