Dulux Avista Sealer Exposed Aggregate 20 L

Enhance and protect your exposed aggregate concrete with the Dulux Avista Sealer Exposed Aggregate 20 L. This premium clear sealer provides a durable, semi-gloss finish, ideal for driveways, patios, footpaths, pool surrounds, and other outdoor surfaces.

Product Overview

Solvent-based clear sealer specifically formulated for exposed aggregate concrete
Available in 20 L and 10 L drums (FD278054‑20L and FD278054‑10L)
Applicators: Suitable for rollers, brooms, or spray systems
Coverage: Approximately 3–5 m² per litre per coat, depending on surface porosity

Key Specifications

Feature	Details
Solids by volume	~20 % dry film (approx. 40–65 µm)
VOC content	724 g/L (high VOC)
Drying time	Touch-dry: 60–120 min; Recoat: ≥2 hrs
Traffic access	Foot: 24 hrs, Vehicle: 5 days
UV stability	Very good; non-yellowing

Surface Preparation & Application

New concrete can be sealed within 24 hrs of aggregate exposure or after a ≥14-day cure if delayed
Existing surfaces require cleaning (pressure-wash ≥2000 psi), acid-etching (diluted HCl 20:1), followed by drying (moisture <10 %)
Re-sealing demands a cross-hatch adhesion test; if successful, use Avista Solvent to reactivate the surface
Application is done with a long-nap roller or broom—pour into a tray, spread evenly, avoid pooling. Apply a second coat after at least two hours

Benefits

Enhances natural beauty – provides a “wet look” sheen that enriches colour and texture .
Robust protection – guards against dirt, grime, water ingress, petrol, oils, alkali, chlorine, and UV-weathering
Non-yellowing – maintains clarity and gloss over time
Rapid recoating – allows quick application turnaround with minimal disruption

Recommended Uses

Residential driveways, patios, pathways
Pool surrounds and recreational areas
Decorative and stamped aggregate features
Applicable to both new and existing exposed aggregate surfaces

Maintenance & Longevity

Clean surfaces regularly; wash spills promptly.
Re-apply sealer every 18–24 months for ongoing protection
Use slip-reducing additives in wet or sloped areas to maintain safety

The Dulux Avista Sealer Exposed Aggregate 20 L is an ideal solution for achieving durable, glossy, and clear protection on exposed aggregate concrete. Featuring excellent coverage, fast drying times, and strong resistance to UV and harsh substances, it preserves both aesthetics and performance. We’re here to guide you on application techniques or recommending preparation steps—just ask!