Chromate Copper Arsenate (CCA) H3 – H6

ccaDavids Timber specialise in timber preservation offering CCA H3-H6 custom treatment which is produced to Australian Standards 1604. We can supply a full range of CCA treated products or treat timber supplied by you.

CCA H3 – H6

Chromate Copper Arsenate (CCA) is a preservative that has been used extensively around the world for more than 80 years and has stood the test of time.

What does each component of CCA do?

Each of the component chemicals plays an important role in making CCA an effective preservative.

  • Copper acts as a fungicide.
  • Arsenic is an insecticide and a back-up fungicide.
  • Chromium acts as a “fixing” agent.

These components reacting in the presence of wood cellulose to render the copper and arsenic chemicals insoluble. This “fixing“ mechanism involves a chemical reaction, with the formation of a complex mixture of insoluble chromium compounds.

Where is CCA used?

rougher-header-vCCA is used widely in the construction of;

  • Ttimber deck sub-frames
  • Pergolas & Carports
  • Fencing
  • Landscaping
  • Retaining walls
  • Bridges & boardwalks
  • Vineyards
  • Domestic, government, commercial and industrial uses.

It’s longevity and durability provide a renewable, maintenance-free and cost-effective material for outdoor use.

Alternative Treatment Types

Davids Timber also offers LOSP H3 and MicroPro H3-H4 as alternative preservatives.

Davids Timber is the industry leader and has a strong alliance with Osmose, the world leader in the supply of products for timber preservation around the world.

Davids Timber were the first Victorian company to treat timber with ACQ and in 2010 became the first Australian company to treat timber with MicroPro. MicroPro is the main timber preservative used in the USA today.

More Information

For all wholesale enquiries, please call us on (03) 9794 4777 or complete our Wholesale Enquiry Form. For all trade and retail enquiries, we recommend the following Treated Pine Stockists.

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