Handley Urethane vs Polycure Duothane

Two solvent polyurethane systems used by Australian floor sanding contractors. Different chemistry, different workflow. Here is how they compare.

The two systems at a glance

Handley Urethane: the 1K approach

Handley Urethane is a single-component solvent polyurethane. No mixing, no pot life to manage, no waste from unused mixed product at the end of the day. Open the tin and apply.

The standout feature is inter-mixable sheens. Gloss, Satin, Low Sheen, and Matt can be blended to hit any sheen level the client wants. This gives contractors precise control over the final appearance without needing to stock a separate product for every sheen point.

Handley Rapid Seal dries in approximately 30 minutes, allowing a fast start to the coating system. Coverage on the sealer is 7-8 m2/L, which is tighter than Polycure Timberseal, but the fast dry time means the first topcoat can go down sooner.

Polycure Duothane: the 2K approach

Polycure Duothane is a two-component system. Part A and Part B are mixed 1:1 before application. The 2K chemistry provides a chemical crosslink during cure, which can deliver higher hardness than a 1K system.

Duothane comes in High Gloss only. For lower sheens, Polycure's system uses Monothane (1K moisture-cure) as the final coat over Duothane base coats. This means a job that needs a satin or matt finish requires two different products in the system -- Duothane for the base coats and Monothane Satin or Matt for the final coat.

Polycure also offers Duothane Fast A, which can be mixed with Part B for a quicker-drying first coat (30-60 minutes). In cold conditions, the Fast A ratio can be increased to 2:1 against Part B to compensate for slower cure.

Monothane vs Handley: the 1K moisture-cure comparison

Both brands also have a 1K moisture-cure option. Polycure Monothane cures by absorbing moisture from the atmosphere. It is available in Gloss, Semi-Gloss, Satin, Matt, plus budget Silver Gloss and Silver Satin variants. Coverage is 10 m2/L across the range. VOC runs from 325 g/L (Gloss) up to 560 g/L (Matt).

Handley Urethane is also a 1K product but with inter-mixable sheens in a single formulation type. The Polycure Monothane range requires selecting the correct sheen product and understanding that low-sheen variants (Semi-Gloss, Satin, Matt) are final-coat-only products that must go over a Gloss or Duothane base.

Sealers compared: Rapid Seal vs Timberseal

Polycure Timberseal has higher coverage (10-12 m2/L vs 7-8 m2/L), but Handley Rapid Seal has the tighter dry window at approximately 30 minutes. Timberseal's edge-bonding reduction claim is a genuine advantage on tongue-and-groove flooring.

Key differences

• 1K vs 2K chemistry. Handley is 1K -- no mixing, no pot life. Duothane is 2K -- chemical crosslink, potentially harder film, but mixed product must be used within the pot life window.
• Sheen flexibility. Handley sheens are inter-mixable from one product line. Polycure Duothane is Gloss only; low-sheen finishes require switching to the Monothane product for the final coat.
• Coverage. Polycure edges ahead at 10 m2/L vs Handley's 8-10 m2/L. On a 100 m2 job, that is roughly 2L less product per coat with Polycure.
• Sealer speed. Handley Rapid Seal at ~30 min is at the fast end. Polycure Timberseal ranges 30-60 min depending on conditions.
• Both are 20L trade packs. Neither brand forces small-pack pricing on trade contractors. Both are available in 20L drums sized for professional use.

When to pick Handley Urethane

• Simplicity on site. 1K means no mixing, no pot life, no waste. Open and apply.
• Custom sheen control. Inter-mixable sheens let contractors dial in the exact finish the client wants without carrying extra products.
• Fast sealer turnaround. Rapid Seal at ~30 min gets the job moving quickly.
• Single-supplier convenience. Sand-Aid stocks Handley Urethane (all sheens) and Rapid Seal alongside the full Bona water-based range, SIA abrasives, and Bona adhesives. One order, one delivery.

When to pick Polycure Duothane

• 2K hardness is required. The chemical crosslink in Duothane can produce a harder film than a 1K product. For high-traffic solvent jobs, that matters.
• Higher coverage per litre. 10 m2/L consistently, which reduces product volume on large jobs.
• Existing Polycure system on the floor. Recoating Polycure with Polycure avoids cross-system adhesion risk.
• Edge-bonding reduction. Timberseal's edge-bonding properties are a documented benefit on T&G floors.

Where to source each

• Handley Urethane and Rapid Seal: Sand-Aid, 6 Sara Street, Toronto NSW 2283. Phone 1300 950 551. All sheens in 20L drums. Delivery across Newcastle, Hunter Valley, Central Coast, and Sydney.
• Polycure Duothane, Monothane, and Timberseal: Available through trade stores and flooring supply outlets. Use the distributor locator at urethanecoatings.com.au to find a local stockist.