OrganoWood®

Surface Treatment System

OrganoWood® surface treatment system offers improved protection and long lasting durability for timber with a beautifully weathered finish. Using patented technology that modifies wood at a molecular level, OrganoWood® coated timber acquires a natural and uniform silver-grey appearance, providing robust protection against adverse weathering and fungal decay.

  • Applied under controlled factory conditions.

  • Uniform silver-grey weathering.

  • Low maintenance system.

  • Nature Conservation Association’s “Good Environmental Choice”.

  • Compatible with Thermowood, Southern Grandis® & Western Red Cedar.

How does OrganoWood® treatment work?

Step 1 – Protection

The first step of the coating system binds silicon compounds to the wood fibres, creating a physical surface barrier that provides enhanced protection against rot and fungal decay. The silicon mimics the natural fossilisation process, encapsulating the wood fibres to form a much harder surface compared to untreated timber, effectively making the fibres inaccessible to fungi. This process is activated by direct UV exposure and as such the timber gradually transforms to a silver-grey colour over time.

Step 2 – Repellent

The second step of the OrganoWood® coating system utilises water-repellent technology to create a hydrophobic surface on the timber. This significantly reduces surface moisture and prevents the build up of waterborne dirt, extending the timber’s lifespan. The treatment penetrates deeply into the wood, forming a robust barrier that allows the timber to endure harsh weather conditions while maintaining its structural integrity for an extended period.

Benefits of OrganoWood® treated timber cladding

Natural, silver-grey timber

Acquiring a silver-grey patina over time, OrganoWood® surface treatment gives timber a uniform, weathered finish mirroring the appearance of naturally aged wood. The system allows consistent weathering across each board reducing the uneven degradation that often comes with natural exposure.

Long-lasting protection

The OrganoWood® coating system penetrates into the wood fibres meaning timber develops a harder, smoother surface significantly extending the lifespan in comparison to uncoated timber. This protective shield reduces splitting and discourages biological surface growth that can damage wood over time.

Cost-effective

Although the initial investment is higher in comparison to uncoated timber, once treated, the boards require significantly less maintenance. The timber hardening process limits the need for frequent repairs and reduces coating reapplication timescales.

Sustainable and safe

OrganoWood® is a water-based wood treatment composed of organic silicon polymers and natural substances without toxic heavy metals or biocides. The treatment system does not contain harmful chemicals, making it safe for the environment, humans and pets.

Versatile application

OrganoWood®  surface treatment is compatible with a wide range of softwood and hardwood species making it versatile across projects including cladding, decking and fencing. The treatment does not alter the wood’s structure, crucial for applications where the natural properties of the timber substrate are desired.

Sustainability & Maintenance

Sustainability

OrganoWood®  treatments are non-toxic and do not contain harmful chemicals. Coatings used in both the first and second steps are water-based and consist of natural plant substances and silicon minerals. The OrganoWood®  surface treatment system is free from biocides and heavy metals making them safe for humans, animals, and the environment across a variety of applications.

Maintenance

The greying process may vary depending on where the timber is sited, elevation and how exposed it is to the weather. When general cleaning or maintenance washing is required Millworks recommends OrganoWood® organic wood cleaner to remove surface dirt. High pressure washing should be avoided and in cases where significant wear has occurred (high traffic areas such as decking), OrganoWood® repellent, step two, can be reapplied for surface protection.