WJ Components

• About Timber Treatment
• HP-Wolmanit® CX-10
• Wolmanit Firestop
• DV-Wolsit® KD-20
• Timber Treatment Process
• Maintenance
• Colours
• Preservative Performance
• European Standards
• Treated Timber Handling
• Re-working of Treated Timber
• Service Life
• Tracing Timber Packs
• Health, Safety & the Environment
• Timber Usability
• Timber Treatment FAQs
• Get A Quote

DV-Wolsit® KD-20

Wolsit® KD-20 is used for all construction grade timbers including CLS framing, joinery etc. and is applied using a double vacuum, low pressure process.

Timber treated with Wolsit® KD-20 is identified with a yellow tracer dye to aid identification of treated stock in the warehouse or on site. The active ingredients in Wolsit® KD-20 give superb protection against insects and fungi for the lifetime of the building when used in use Class 1 & 2 environments. For window joinery, cladding, etc. a coating is required to protect the timber from rain.

The key advantages of low pressure treatment with Wolsit® KD-20 are the lower uptakes of water duing treatment and a more natural colour compared with the green high pressure treatments. The micro-emulsion preservative solution doesn’t penetrate the core of the timber during the process so less water is used and the water evaporates quickly leaving the treated timber at its original dimensions and moisture content.