Overview

The Dulux Avista Liquid Release Agent Clear is a solvent-based release agent made for use with polyurethane stamping moulds in the stamped concrete process. Applied to the surface just before stamping, it stops the moulds from sticking to the wet concrete, so the pattern transfers cleanly without tearing or pull-up.

It also works as a secondary colourant, adding a subtle two-tone antiquing effect that gives stamped patterns depth. For a stronger effect, extra release agent can be sprayed over the surface after stamping, even once the concrete has hardened but before sealing. The 15L container covers roughly 60 to 100 square metres.

Key Features

• Stops polyurethane stamping mats sticking to fresh concrete
• Creates a subtle two-tone highlight in stamped patterns
• Adjustable colour intensity from light to bold antique
• One 15L container treats approximately 60 to 100 m2
• Water-insoluble, so light rain during cure will not wash it away
• Solvent-based formula for clean mould release

Specifications

• Pack size: 15L container
• Coverage: approximately 60 to 100 m2
• Application: brush or spray just before stamping
• Curing: allow 14 to 30 days before cleaning and sealing
• Chemistry: solvent-based, water-insoluble

Applications

• Stamped concrete driveways
• Stamped patios and pathways
• Slate, stone, tile and wood-grain stamp patterns
• Commercial stamped concrete installations

What You Need to Complete the Job

After the Colour Hardener is worked into the slab, brush on the release agent just before pressing the stamps. Once the concrete has cured for 14 to 30 days, clean the surface and seal it with a Dulux Avista concrete sealer. Pair the release with a Stencil 100M where a grout-line pattern is wanted. Sealers are in the Concrete Sealers range.

Frequently Asked Questions

How long do I wait between applying the release and stamping?

There is no waiting period. Apply the release agent immediately before stamping and press the mats straight away. The concrete has to be at the right consistency: firm enough to take your weight without sinking, but still impressionable enough to hold the pattern cleanly.

Why do I have to wait 14 to 30 days before sealing?

The wait lets the concrete fully cure and the excess moisture escape. Sealing too early traps moisture under the sealer film, which causes whitening, blistering and sealer failure. The release agent stays on the surface during this time and is not washed off until you prepare for sealing.

Will rain wash off the release agent?

No. This is a solvent-based, water-insoluble product, so light rain will not wash it away during the curing period. Heavy or persistent rain in the first few days can affect the colour effect, so it is worth checking the forecast before you pour and plan accordingly.