Unprotected outdoor wood furniture deteriorates rapidly. UV rays break down the surface, moisture causes swelling and cracking, and fungi cause rot. The right sealer applied correctly adds 5–10 years of life to any outdoor piece. Here is how to do it.
By Wood Type
Cedar and Redwood
Naturally rot-resistant. Seal with a penetrating oil finish (Penofin or similar) to enhance the natural colour. Do not use film-forming finishes — they peel.
Teak
The most naturally durable outdoor wood. Can be left untreated (weathers to a silver-grey) or oiled annually with teak oil to maintain the warm golden colour. Do not use polyurethane on teak — the natural oils prevent adhesion.
Pine and Other Softwoods
Not naturally rot-resistant — needs more protection. Use a two-part process: first, a water repellent wood preservative (Woodlife Classic), followed by a solid-colour or semi-transparent deck stain. Reapply every 2 years.
Application Tips
- Always work clean, dry wood — 72+ hours after any rain
- Sand to 120 grit before applying any finish
- Work the finish into end grain first — end grain absorbs 3x more than face grain
- Apply thin coats and let each dry fully before recoating
