Overview

The Dulux Avista Polyaspartic Sealer Part B is the hardener component of a two-part, solvent-free polyaspartic coating system. Combined with the Polyaspartic Sealer Part A in equal parts, it starts a rapid chemical cure that delivers a tough, UV-stable, high-gloss clear coating in a single application.

The 10L hardener matches the 10L Part A resin to form a 20L mixed kit covering roughly 100 to 250 square metres depending on porosity. It suits garages, car parks, hospitals, schools, roadways and commercial kitchens, anywhere a fast return to service and durability are needed.

Key Features

• Rapid chemical cure, walkable in 1 to 2 hours
• Solvent-free, no VOCs from a solvent carrier
• 10L Part B matches the 10L Part A for a 20L kit
• Single-coat performance at the right coverage rate
• UV and chemical resistant, non-yellowing
• Interior and exterior use

Specifications

• Pack size: 10L
• Mix ratio: 1:1 by volume with Part A
• Kit: 10L Part B plus 10L Part A equals 20L mixed
• Pot life: about 40 minutes at 20 to 30 degrees
• Coverage: about 100 to 250 m2 per 20L kit
• Recoat window: 1 to 18 hours

Applications

• Garages and car parks
• Hospitals, schools and roadways
• Commercial kitchens
• High-traffic commercial floors

What You Need to Complete the Job

Stir this hardener thoroughly before mixing, then combine equal volumes with the Polyaspartic Sealer Part A and apply within the 40-minute pot life. Mix only what a two-person team can lay in that window. For a longer pot life, the 2 Pack Urethane is the alternative. The system is in the Concrete Sealers range.

Frequently Asked Questions

Why must I stir Part B before mixing?

Polyaspartic hardeners can settle or stratify during storage. Stirring Part B thoroughly before combining with Part A ensures a uniform chemical composition and consistent cure throughout the mix. Skipping this can cause uneven cure, soft spots or variable gloss.

What happens if I exceed the 40-minute pot life?

The mixture thickens and gels, becoming impossible to spread, and it will not bond properly. Do not apply gelled material. Dispose of the expired mix and prepare a fresh batch. Plan the work in sections and mix to match.

Can I apply a second coat if needed?

Yes. The recoat window is 1 to 18 hours. Beyond 18 hours, the surface needs light sanding for a mechanical key. For most jobs a single properly applied coat is enough, with a second coat only for highly porous surfaces that absorbed unevenly.

Is this suitable for a DIY home garage project?

The results are outstanding, but the 40-minute pot life demands efficient work that can be hard for a solo DIYer. If you can enlist a helper, it is achievable. For first-time users, the water-based epoxy with a 2 to 3 hour pot life is more forgiving.