Cut Edge Corrosion Treatment

Panels of cladding on the roofs or elevations of commercial buildings can suffer from cut edge corrosion. Sections of cladding are cut to size in a factory setting to fit a building and sometimes the cut edges are not coated properly or they are exposed to adverse weather for too long.

Cut Edge Corrosion can affect metal cladding when the factory coating at the edges of the panel fails. Consequently, the metal substrate that is exposed is prone to rusting and corrosion. The majority of cases occur on roof cladding. If left over time the cut edge can cause leaks within the building leading to an increase in cost for maintenance. Our experts at Vanda Coatings can assess the extent of any damage and prevent further degradation of the panel by thoroughly preparing it before re-coating.

Cut Edge Corrosion

Cut Edge Protection Method

  • Remove all the loose delaminating Plastisol using a high pressure jet wash and remove all rust. Badly corroded sheets may need replacement.
  • Coat the edge of the panel to a minimum of 5cm past junction, coat bolts and any fixings.
  • Apply Elastofill or Seamsil after the paint has dried. Ensure the sealant is forced into the gap to a minimum of 5mm.
  • Apply specialist paint in two coats.

Vanda Coatings Cut Edge Corrosion

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