Davids Timber specialise in timber preservation offering CCA H3-H4 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 – H4
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.
- Arsenate 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.
CCA is used widely in the construction of;
- Timber 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 Koppers Performance Chemicals, the world leader in the supply of products for timber preservation around the world.
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