The Natural Look: Haymes Woodcare Decking Oil 

For those who prefer a more traditional finish, Haymes Woodcare Decking Oil is a trusted choice. This oil-based formula penetrates the timber, enhancing the natural texture and preserving its character over time. It also protects against UV, mould, algae, and water damage, making it ideal for Merbau and other hardwoods.

Because it weathers naturally, it won’t peel or crack, and recoating is straightforward. Available in a Merbau tint, it’s designed to blend seamlessly with your deck’s existing tone.

Key benefits:

• Penetrates to nourish and protect from within
• Highlights the grain with a classic matte finish
• Repels water and guards against mould and algae
• Doesn’t peel or flake over time
• Perfect for walkways, steps and fencing

For Longer Lasting Results: Use Haymes Dexpress

If you’re looking for longevity and convenience, Haymes Woodcare Dexpress offers a water-based alternative that’s designed to last up to three times longer than traditional decking oil.

It dries quickly, is UV and mould resistant, and is ideal for Australian conditions. The low sheen finish delivers a consistent appearance, and application is fast and easy, with recoat possible in just two hours.

Key benefits:

• Water-based formula with long-lasting protection
• Resists fading, mould and weather damage
• Low sheen finish for a clean, modern look
• Touch dry in 20 minutes
• Suitable for decking, cladding, fences and screens

Premium Finish, Less Upkeep: Haymes UVEX Exterior Finish

Haymes Woodcare UVEX Finish offers a step-up in durability and design. With a satin finish and advanced resistance to UV, moisture and abrasion, it’s a great fit for high-traffic areas or decks that take a beating from the elements.

If you want to showcase the beauty of your timber while keeping maintenance to a minimum, UVEX delivers that balance with premium performance.

Key benefits:

• Satin finish that enhances natural timber
• Maximum protection from UV and wear
• Long-lasting finish with minimal reapplication
• Excellent for decks, screens, and architectural timber features

How to Prepare Your Deck for Coating

Preparation is everything when it comes to results. Start with the right product for your deck’s condition:

• New timber: Use Haymes Woodcare Rapid Prep to open the grain and remove tannins
• Weathered timber: Use Haymes Woodcare Wood Cleaner to lift grey fibres and embedded grime

Once clean, allow the surface to dry completely before applying your chosen finish. Preparation helps the product bond correctly and ensures it performs as designed.

Read our Woodcare Quick Reference guide for more information.

How to Apply Decking Oil or Stain

Each product in the Woodcare range has specific instructions, but the principles are the same:

• Use a paint brush, lambswool applicator or deck brush
• Apply during mild weather (ideally 18–25°C)
• Avoid direct sun, rain or heavy dew during and after application
• Follow drying and recoat times carefully

Two coats are typically recommended for full protection and even coverage.

When to Recoat Your Merbau Deck

Decking products wear at different rates depending on exposure and foot traffic. Here’s what to watch for:

• Water stops beading on the surface
• Colour fades or becomes patchy
• Timber feels rough or dry

For oil-based finishes, a yearly inspection is wise. Dexpress may last multiple seasons but should still be checked regularly.

What Not to Do When Coating Your Deck

Avoid these common mistakes:

• Applying product to a wet or dirty surface
• Coating in direct sunlight or extreme temperatures
• Ignoring the manufacturer’s recoat or drying times
• Applying if rain is expected within 2 hours (for Dexpress)

Cutting corners in preparation or application can shorten the lifespan of your coating.

Questions We Often Hear About Merbau Deck Coatings

Will Dexpress peel? No. It’s designed to wear gradually, not peel or flake.

Do I have to sand every time? Not necessarily. If the surface is sound and clean, sanding isn’t required between coats.

Can I match the colour to Merbau? Yes. Both Decking Oil and Dexpress are available in Merbau tints.

Which is better, oil or water-based? It depends on your priorities. Choose oil for a natural look and easy maintenance. Go with water-based if you want longer protection and quicker drying times.

Your Deck, Done Right

A well-finished Merbau deck doesn’t just look good, it lasts longer, feels better underfoot, and weathers gracefully. Whether you choose the traditional look of Decking Oil, the long-lasting ease of Dexpress, or the premium feel of UVEX, your timber deserves the right protection.

To start your project today:

• Shop the full Woodcare range
• Find your nearest Haymes stockist

Let’s make your deck one you’ll enjoy season after season.