PRESSURE TREATMENTS
Our Roundwood facility in Kumeu, located northwest of Auckland, operates on-site treatment facilities for CCA (Copper, Chrome, Arsenate) and ACQ (Alkaline Copper Quaternary) processes, both waterborne preservatives.
We also offer custom steam and treatment services; contact us for more details.
Treated Radiata Pine is more durable than naturally durable tropical hardwoods, which are less readily available. The pre-dried timber undergoes a pressure treatment process where air is removed from the cells under vacuum. The cylinder is then flooded with preservatives, and pressure forces the solution deep into the timber. This process takes two to three hours. Afterward, a final vacuum extracts any excess chemicals, and the timber is left to rest on a drip pad before being ready for sale.
Pinepac offers a 50-year guarantee against rot or decay on all treated timber products in H3 to H5 hazard classes.
Pinepac timber carries the WOODmark® trademark, which signifies compliance with the highest standards set by the New Zealand Timber Preservation Council, including treatment to NZS 3640. Only licensed treatment plants are authorized to use the WOODmark® brand.