Choosing the right coating for your timber floors is just as important as the sanding process itself. In Perth, our unique climate—intense UV and dry heat—means your floor finish needs to do more than just look good; it needs to protect your investment for the long haul. At Ryan’s Flooring, we’ve seen how different “floor finish types” perform across thousands of square metres of Jarrah, Marri, and Blackbutt.
In this 2026 guide, we break down the three most common floor finish types used in Western Australia: Water-Based Polyurethane, OSMO Hardwax Oil, and Solvent-Based Polyurethane. While we specialise in water-based and OSMO systems, we believe in giving Perth homeowners the full picture so you can choose the finish that fits your lifestyle.
1. Water-Based Polyurethane (The Modern Standard)
Water-based finishes have come a long way in the last decade. We typically use high-performance 2-pack systems that offer incredible durability without the harsh chemicals of older coatings. This is our most requested finish for modern Perth renovations, especially in areas like Nedlands and Floreat where homeowners want a clean, natural look.
- Pros: Non-yellowing (stays clear), low odour, fast drying times, extremely hard-wearing.
- Cons: Higher upfront cost for premium 2-pack products.
- Best For: High-traffic family homes and lighter timbers like Blackbutt or Marri.
Because these finishes don’t “amber” over time, they are the perfect choice if you want to keep your Blackbutt floors looking light and contemporary. We often recommend these for floor sanding and polishing projects where the goal is a fresh, airy feel.
2. OSMO Hardwax Oil (The Natural Choice)
OSMO isn’t just a coating; it’s a finish that penetrates the wood fibres while leaving a protective layer on the surface. It’s made from natural oils and waxes, making it a favorite for eco-conscious families and character homes in Fremantle or Mount Lawley.
- Pros: Enhances the natural grain, easy to spot-repair (no need to sand the whole floor for a scratch), tactile feel underfoot, zero VOC options.
- Cons: Requires specific maintenance products; lower sheen levels only (matte/satin).
- Best For: Jarrah floors where you want to feel the wood grain, and homes with pets or kids where “life happens.”
We are specialists in OSMO application. It brings out a depth in Jarrah boards that traditional plastic-looking coatings simply can’t match. If you prefer a “furniture-grade” finish that ages gracefully, OSMO is hard to beat.
3. Solvent-Based Polyurethane (The Traditional Look)
Solvent-based finishes were the industry standard for decades. While the industry is moving toward more sustainable options, solvent-based polyurethane remains a valid choice for many Perth clients, particularly those who love the traditional “high-gloss” look and the warm, amber glow it adds to timber.
- Pros: Very high gloss levels achievable, distinct “warm” ambering effect, generally the most budget-friendly.
- Cons: High odour (you usually have to move out for a few days), significant yellowing over time, higher VOCs.
- Best For: Traditional homes where a warm, honey-toned finish is desired.
We don’t shy away from solvent-based work, but we do recommend water-based or OSMO for most Perth homes due to the superior long-term clarity and ease of living. However, if you are after that classic “old-school” Jarrah look with a rich amber depth, solvent-based is still a reliable performer.
Comparing the Three: A Quick Guide
When weighing up your floor finish types, consider your tolerance for maintenance and your aesthetic goals. Water-based is the “set and forget” durability king. OSMO is the “natural and repairable” beauty. Solvent is the “classic and glossy” traditionalist. During our site visit, we can show you samples of all three on your specific timber species.
Perth’s harsh sunlight can cause solvent finishes to yellow rapidly, often turning beautiful Marri floors an unnatural orange within a few years. This is why our default recommendation often leans toward non-yellowing water-based systems or the deep, natural tones of hardwax oils.
Conclusion: Which Should You Choose?
Your choice depends on your priorities. If you want the toughest finish possible with zero yellowing, go for a 2-pack water-based system. If you want a natural feel and the ability to fix scratches without re-sanding, OSMO is the winner. If you want a high-gloss, traditional amber look on a budget, solvent-based is your go-to.
At Ryan’s Flooring, we have over 10 years of experience applying these finishes across 500+ projects in Western Australia. We’ll help you navigate the pros and cons based on your specific floor condition and lifestyle needs.