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Water-Based Timber Floor Lacquer (1K & 2K)

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Timber floor lacquer is a film finish rolled over a sanded floor to protect it from foot traffic, grit and spills. This collection brings together the water-based lacquers we stock from German manufacturer Berger-Seidle, sold under its AquaSeal name, with the primers, sealers and additives that go under and into them. It is aimed at floor sanders and flooring contractors coating Australian hardwoods, oak and other sanded timber floors, and at experienced renovators prepared to follow the technical data sheet closely. Berger-Seidle advises one roller coat per day for CeramicStar and SmartStar to limit swelling pressure in the timber. Low temperatures, high humidity and poor ventilation can delay drying considerably, while AquaSeal Retarder helps finishes dry normally on extremely hot or dry sites.

How to choose a timber floor lacquer

  • 1K or 2K: 1K lacquers such as SmartHome, EcoGold and NordicWhite are single-component, with no hardener to mix. 2K lacquers such as CeramicStar, SmartStar, GreenStar and the 2KPU range are mixed with a hardener before application, and the mix has a pot life: about 2 hours for CeramicStar and SmartStar, at least 18 hours for GreenStar. Shop 1K water-based polyurethane or 2K water-based polyurethane.
  • Traffic: AquaSeal CeramicStar is ceramic-reinforced for high-traffic homes and demanding commercial projects, applied as 2 topcoats over one sealer coat. SmartStar is also designed for high-traffic areas, SmartHome suits normal traffic and NordicWhite medium traffic.
  • Sheen and look: stocked sheens run from ultra matt (CeramicStar, NordicWhite) and matt (SmartHome, GreenStar) to satin/matt (CeramicStar, EcoGold) and semi-gloss (CeramicStar, GreenStar). NordicWhite whitens the timber, with the effect building coat by coat, and 2KPU NaturalWhite gives an extremely matt, almost invisible finish.
  • Primer or sealer: AquaSeal FlexPrimer reduces edge bonding under AquaSeal topcoats and is the recommended primer for CeramicStar, SmartStar and EcoGold. On tannin-rich timber such as spotted gum, on most exotic species and over stain, ExoBloc gives a high blocking effect against wood ingredients, and the alcohol-based Uniquick Primer strongly isolates them too. Compare all sealers and primers.
  • Anti-slip additive: AntiSlip R10 is a ceramic-based additive that adds surface structure to AquaSeal 2KPU, giving a highly abrasion-resistant coating for high-traffic floors.

For background, our guide to choosing a floor lacquer compares water-based 1K and 2K options and sheen levels. The spotted gum flooring guide explains why this tannin-rich species benefits from a sealer coat before the main finish. Working in one system from primer to filler? Browse the Berger-Seidle AquaSeal range.

Fill gaps before the final sand with our wood floor fillers. EcoGrit ships lacquers Australia-wide from Knoxfield, Melbourne, with trade pricing for flooring professionals. For product or application advice, call our technical line on 0401 270 818.

How a Water-Based Lacquer Build Works

How a Water-Based Lacquer Build Works

A lacquer finish is a sequence rather than a single tin. Sand to bare timber, fill any gaps, complete the final fine sand and remove all dust. Roll on the primer or sealer, then build the topcoats, allowing one roller coat per day where the product calls for it so the timber can release absorbed moisture.

CeramicStar and SmartStar go on in rich, even coats, not stretched thin. With any 2K lacquer, mix only what you can apply within its pot life. After the last coat of CeramicStar or SmartStar, keep rugs off and hold maintenance products for at least 7 days.

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Questions about our Water-Based Timber Floor Lacquer (1K & 2K)?

What is the difference between 1K and 2K floor lacquer?

1K lacquers such as AquaSeal SmartHome, EcoGold and NordicWhite are single-component, with no hardener to mix. 2K lacquers are mixed with a hardener before use: CeramicStar and SmartStar take AquaSeal Hardener at 10:1 and are designed for high-traffic floors. Once mixed, CeramicStar and SmartStar have a pot life of about 2 hours, while GreenStar allows at least 18 hours.

Is water-based lacquer tough enough for high-traffic floors?

Yes, if you choose a 2K product and apply the full build. AquaSeal CeramicStar is a ceramic-reinforced 2K lacquer for high-traffic residential and demanding commercial projects, applied as 2 topcoats over one sealer coat. SmartStar is also designed for high-traffic areas. On AquaSeal 2KPU, the AntiSlip R10 additive adds surface structure and gives a highly abrasion-resistant coating for busy floors.

How many coats of lacquer does a timber floor need?

It depends on the product. CeramicStar and SmartStar each go on as one sealer coat plus 2 topcoats, 3 coats overall, with only one topcoat per day to limit swelling pressure in the timber. FlexPrimer is the recommended primer for both, so check the technical data sheet for how it fits the full build. CeramicStar floors can be put to use after 12 hours under standard conditions.

Do I need a primer or sealer before lacquering a timber floor?

It is recommended, mainly to reduce the risk of edge bonding. FlexPrimer is the recommended primer for CeramicStar, SmartStar and EcoGold on floors sanded back to raw timber. On most exotic species or stained floors, AquaSeal ExoBloc gives a high blocking effect against wood ingredients, and the alcohol-based Uniquick Primer strongly isolates them.

How do I stop water-based lacquer drying too fast in hot weather?

Add AquaSeal Retarder. It slows the reaction speed of AquaSeal water-based finishes and is recommended for extremely dry or hot conditions, helping the film build normally. Check the technical data sheet for the dose. The opposite problem applies in cold, humid or poorly ventilated rooms, where drying can be delayed considerably, so plan coats around the conditions on site.