Treatex | W219 Preservative 2.5L (formerly W216)

Treatex W219 Preservative, which was previously sold as W216, is a water-based wood treatment that protects against blue stain and fungal attack. It is suitable for trade and private use on doors, windows, fences, cladding and sheds.

It is made for timber that is held clear of the ground. Treatex says it is not suitable for timber that is in constant contact with water or the ground.

Key facts

• Pack size: 2.5L
• Coverage: about 4 to 6m² per litre, so roughly 10 to 15m² per tin
• Conditions: timber moisture content below 15% and air humidity below 65% during application
• Preparation: remove all previous finishes and sand no finer than 120 grit
• Use: exterior

How to use it

Stir the contents thoroughly before and during use, apply to all sides of the untreated wood, and do a trial application first. The surface needs to be dry, porous and free of dust.

Works well with

Once treated, finish with Exterior Oils, Cedar Oil or UV Oil. On high tannin timbers use Stain Inhibitor before light colours. Browse our Treatex exterior wood oils, paints and preservatives collection.