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Westox Cocoon How it works

Cocoon is manufactured from pharmaceutical grade filter paper. It features a very high internal surface area with high porosity and purity

 Cocoon is a poultice that is capable of drawing salt out of masonry and halting deterioration. On the St Apollonia, before the first application, each brick was about 30% salt.

Over 13 months, the Cocoon poultice drew out around four kilograms of salt per square metre. By the end of the first application, the bricks were down to only eight percent salt.

Cocoon works by drawing the salt out of the masonry it is applied to. Cocoon is spread in a 10mm thick layer where it slowly releases water into the masonry to place the build up of salts in the surface of the wall into solution.
As the cocoon dries, the water containing the salts is drawn into it. The cocoon is then removed, along with the salt.

Cocoon has also been used to treat Australia’s oldest buildings, including Australia’s oldest house, Elizabeth Farm (c 1794), Sydney’s St Marys Cathedral (c 1870), Windsor Court House (c 1822) and the Capital Theatre in Bendigo (c 1870).

Developed by Sydney-based supplier and manufacturer, Westox, Cocoon poultice is the brainchild of Barrie Cooper, who spent the early part of his career as a plasterer.

Cooper recognised the need for a product to remove salt from masonry and developed the product initially to treat salt contamination at Fort Denison on Sydney Harbour.

Features Include:

  • Clean Application
  • No detrimental effect to the masonry
  • Applied by spray or trowel
  • Premixed, no onsite mixing
  • Easy removal of salts
  • Made from non-toxic materials
  • Cost effective
  • Fast removal of salts
  • Low maintenance