Dulux Avista Adhesion Add 200ML — Superior Bonding on Difficult Concrete Surfaces

The Dulux Avista Adhesion Add is a concentrated 200ML adhesion-promoting additive designed to be mixed into Dulux Avista concrete sealers to significantly improve bond strength on challenging substrates. Whether you are working with dense, smooth, or previously sealed concrete where adhesion may be compromised, this additive ensures your sealer grips firmly and performs reliably for the long term.

A small addition to your sealer mix can make the difference between a coating that lasts for years and one that peels or delaminates prematurely. Ideal for professional concreters and meticulous DIYers alike, the Adhesion Add is an insurance policy for your decorative concrete sealing project.

Key Features & Benefits

• Enhanced Bond Strength: Improves the adhesion of Dulux Avista sealers to difficult substrates including dense concrete, power-trowelled surfaces, and previously coated concrete.
• Versatile Compatibility: Designed to work with Dulux Avista solvent-based and water-based concrete sealers — confirm compatibility with your specific product before use.
• Concentrated Formula: A 200ML bottle treats a full pail of sealer, making it a cost-effective addition to any project.
• Reduces Delamination Risk: Minimises the chance of peeling, flaking, and inter-coat adhesion failure — particularly important when sealing over existing coatings.
• Easy to Use: Simply stir into the sealer prior to application — no special equipment or complex mixing procedures required.

When to Use Adhesion Add

Consider using the Adhesion Add in the following situations:

• Smooth or Power-Trowelled Concrete: Surfaces with a very tight, closed finish can be difficult for sealers to bond to mechanically. The Adhesion Add promotes a chemical bond where mechanical key is limited.
• Previously Sealed Surfaces: When recoating over an existing sound sealer, the Adhesion Add helps the new coat grip to the old one — reducing the risk of inter-coat peeling.
• High-Traffic Areas: Driveways, commercial entrances, and pathways subject to heavy wear benefit from the extra bond strength, which helps the sealer resist scuffing and lifting.
• Areas Subject to Moisture: Pool surrounds, shaded paths, and areas with occasional standing water present additional adhesion challenges that the additive helps overcome.

Application Instructions

Step 1 — Prepare the Sealer: Pour the required amount of Dulux Avista sealer into a clean mixing container.

Step 2 — Add the Adhesion Add: Add the entire 200ML bottle to a full 20L pail of sealer (or scale proportionally for smaller volumes — approximately 10ML per litre of sealer).

Step 3 — Mix Thoroughly: Stir gently but thoroughly for 2–3 minutes to ensure the additive is fully dispersed throughout the sealer. Avoid vigorous agitation, which can introduce air bubbles.

Step 4 — Apply: Apply the sealer as normal using a roller, brush, or sprayer according to the sealer product instructions. The working time and application characteristics of the sealer are not significantly affected by the additive.

Step 5 — Clean-Up: Clean tools according to the sealer product instructions (water for water-based sealers, solvent for solvent-based sealers).

Important Notes

• Always confirm the Adhesion Add is compatible with your specific Dulux Avista sealer — consult the sealer Technical Data Sheet or contact Dulux Avista technical support if unsure.
• Do not exceed the recommended dosage — over-addition will not further improve adhesion and may affect sealer clarity or drying characteristics.
• Once mixed, use the sealer within its normal working time. Do not store sealer that has been mixed with the additive for extended periods.
• Surface preparation remains essential — the additive enhances adhesion but is not a substitute for proper cleaning, drying, and surface profiling.

Frequently Asked Questions

1. Do I need to use Adhesion Add for every sealing project?

No — for most standard residential concrete sealing jobs on clean, properly prepared surfaces, the sealer alone provides sufficient adhesion. The Adhesion Add is recommended for challenging situations: smooth power-trowelled concrete, recoating over existing sealers, high-traffic commercial surfaces, and areas prone to moisture. If you are unsure whether your project requires it, err on the side of caution — the small cost of the additive is negligible compared to the expense of stripping and redoing a failed seal.

2. Can I use this additive with any brand of concrete sealer?

The Dulux Avista Adhesion Add is formulated specifically for Dulux Avista sealers. Using it with other brands may produce unpredictable results and is not recommended. If you are using a non-Avista sealer, consult that manufacturer for their recommended adhesion promoter or primer system.

3. Will the Adhesion Add change the appearance of the sealer?

When used at the recommended dosage, the Adhesion Add does not affect the clarity, colour, or sheen level of the sealer. Your finished surface will look identical to one sealed without the additive — the only difference is the superior bond strength beneath the surface.

4. How much Adhesion Add do I need for a 10L pail of sealer?

The standard dosage is approximately 10ML per litre of sealer. For a 10L pail, you would add 100ML (half the 200ML bottle). For smaller quantities, scale down accordingly — for example, 50ML for a 5L mix. Use a measuring cup or syringe for accurate dosing of small volumes.

5. Can I add the Adhesion Add to a tinted sealer?

Yes — the Adhesion Add is compatible with tinted Dulux Avista sealers. However, as with any modification to a tinted product, we recommend preparing a small test batch first to confirm that the colour, drying, and finish meet your expectations before committing to the full mix.

6. What happens if I add too much Adhesion Add?

Over-addition (significantly exceeding the recommended ratio) may cause the sealer to remain slightly tacky, extend drying times, or — in extreme cases — develop a slight haze. The Adhesion Add is a catalyst for bonding, not a filler or strengthener; more is not better. Stick to the recommended dosage for optimal results.

7. Is surface preparation still necessary if I use this additive?

Absolutely. The Adhesion Add enhances the chemical bond between the sealer and the substrate, but it cannot compensate for a dirty, dusty, greasy, or poorly prepared surface. Proper cleaning, drying, and — where appropriate — mechanical profiling remain essential steps in achieving a long-lasting, professional-quality finish. Think of the additive as a performance enhancer, not a shortcut.