Water-Based vs Solvent Polyurethane -- Which Finish for Your Floor?
Every floor sanding job ends with the same question: water-based or solvent-based polyurethane? Both are professional-grade finishes. Both last. But they look different, smell different, and suit different situations.
Water-Based Polyurethane
Water-based poly dries crystal clear. It won't change the colour of your timber, so what you see after sanding is what you get. It's low odour, fast drying (2-3 hours between coats), and you can usually walk on the floor in socks within 24 hours.
Best for: light timbers like Blackbutt or Tasmanian Oak where you want to keep the natural colour. Also the better choice if you're staying in the house during the job, because the smell is minimal.
Solvent-Based Polyurethane
Solvent-based poly gives timber a warm, amber tone that deepens over time. It's the traditional finish and it's extremely hard-wearing. Drying time is longer (overnight between coats) and the smell is strong for the first 24-48 hours.
Best for: darker timbers like Spotted Gum or Brush Box where you want to bring out the warmth. Also a good choice for high-traffic areas like hallways and kitchens because of its durability.
Side by Side
| Water-Based | Solvent-Based | |
|---|---|---|
| Colour | Crystal clear | Warm amber |
| Dry time | 2-3 hours | Overnight |
| Odour | Low | Strong (48hrs) |
| Durability | Very good | Excellent |
| Recoat | 7-10 years | 10-15 years |
| Best for | Light timber, families at home | Dark timber, high traffic |
Which One Should You Pick?
There's no wrong answer. It depends on your timber species, how you use the space, and the look you're after. The best way to decide is to see samples on your actual floor -- the same species can look completely different under each finish.
Russell carries both Bona water-based and solvent-based systems and can show you samples on site before you commit.