PTG Treatments Web
Your Partner in Timber Protection
High Pressure Treatment

High Pressure preservatives provide long term protection against wood destroying fungi and insects and are used in almost all end use situations The waterbourne copper based preservative solution is applied to the timber in purpose designed industrial plants using vacuum and high pressure processes. This maximises the penetration of preservative into the timber and provides long lasting protection.

To select the correct specification please use the table below.

 

Treatment Code

Use Class

Typical Components

PT1

1 or 2

Internal building timbers, timber frame material, roofing timbers, TR26, tile battens.

PT2

3

Cladding, soffit, fascia and barge boards, Fence rails, decking, pergolas above ground contact. Farm buildings, stables, frames and sole plates above DPC.

PT3

1,2 or 3

Plywood and other suitable sheet materials

PT4

4

Ground contact timbers. Fence posts and gravel boards and any timbers in contact with the ground or below DPC level.

PT5

N/A

Australian Quarantine Standard (certificated)

PT6

Up to 4

Tanalith E treated timber with built in Tanatone brown colour for fencing and landscaping timbers.

PT7

Up to 4

Retaining wall timbers

Desired Service Life for High Pressure treated timber:

  • Components Used in Use Class 1 or 2     60 Years
  • Components Used in Use Class 3        15 - 30 Years
  • Components Used in Use Class 4        15 - 20 Years