CUTEK Extreme CD50 Decking Oil is a high-performance wood stabiliser designed to deeply protect and enhance exterior timber. This penetrating oil highlights the natural grain while improving dimensional stability to reduce warping, cupping and splitting in harsh outdoor conditions. Unlike surface coatings, CD50 works from the inside out and won’t crack, peel or flake over time. Apply it clear to allow timber to naturally silver, or mix with a CUTEK® Colourtone to maintain richer colour and extend UV protection.

Key Features:

• Deep-penetrating timber oil stabiliser for exterior wood protection

• Improves resistance to warping, cupping and splitting

• Won’t crack, peel or flake — maintenance is fast and simple

• Enhances natural wood grain and texture

• Clear oil or tint with CUTEK® Colourtones for tailored colour and UV defence

• Australian-made for performance in local climates

Benefits:
By stabilising wood from within, CD50 extends timber service life and delivers a natural, low-maintenance finish. Its deep diffusion repels moisture and guards against dimensional movement, making it ideal for decks, cladding, posts and outdoor joinery.

Application Tips:
Stir thoroughly and apply thin, even coats with a brush or applicator. Two coats are recommended on new timber, with maintenance recoats as needed when wood no longer beads water. Clear oil will allow natural silvering; adding a Colourtone slows that process and preserves colour.

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