Polyurethane vs. Oil: Choosing the Right Floor Finish
After sanding, the finish you choose is the only thing standing between your timber and spills, scratches, and wear. But with so many options—Solvent Poly, Water Poly, Oils—it can be confusing.
Here is a straightforward breakdown of the three main contenders to help you choose the best finish for your lifestyle.
1. Water-Based Polyurethane
The modern standard. It is environmentally friendly, low odor, and incredibly tough.
- Look: Clear, transparent. Doesn't yellow over time. Keeps the floor looking "light".
- Durability: Excellent. Forms a plastic-like protective film on top of the wood.
- Best For: Modern homes, blonde timbers, allergy sufferers.
2. Oil-Based Polyurethane (Moisture Cure/Solvent)
The traditional "glaze". Known for its deep gloss and toughness.
- Look: Rich, amber/golden tone. Darkens the wood slightly. High gloss options available.
- Durability: Very hard, but can be brittle. Strong smell during application.
- Best For: Rental properties, owners who love the "golden glow" of Rimu.
3. Hard Wax Oils
A blend of natural oils and waxes that penetrates the wood rather than sitting on top.
- Look: Matte, organic, silky feel. Accentuates the texture of the grain.
- Durability: Good, but relies on maintenance. Repels water well.
- Best For: Heritage restoration, eco-conscious owners, those who want an ultra-matte finish.
Comparison Table
| Feature | Water-Based Poly | Oil-Based Poly | Hard Wax Oil |
|---|---|---|---|
| Yellowing | No (Clear) | Yes (Amber) | Slightly |
| Smell | Low | Strong | Moderate |
| Drying Time | 2-4 Hours | 8-12 Hours | 8-12 Hours |
| Repairability | Difficult | Difficult | Easy (Spot repair) |
Still Undecided?
We carry samples of all finishes. We can apply test patches on your floor during our site visit.
Frequently Asked Questions
Which finish is best for high-traffic areas?
Water-based polyurethane (especially 2-pack commercial grade) is the toughest option for scratch resistance and high traffic. Oil finishes are durable but may require more frequent maintenance 'top-ups'.
Which finish looks more natural?
Water-based polyurethane provides the most 'natural' raw-wood look as it is non-yellowing. Hard Wax Oils also provide a beautiful natural matte look but enhance the grain more.
Can I patch-repair scratches?
With polyurethane, no—you usually have to re-sand the whole room. With Hard Wax Oils, yes—you can spot-repair scratches and buff them in seamlessly.