When to use ROCKCOTE Acrybond

When to use ROCKCOTE Acrybond

ROCKCOTE Acrybond has multiple uses. It is an acrylic bonding agent that is suitable for use as a primer on highly absorbent substrates such as AAC (Aerated Autoclaved Concrete) panel and bricks. Acrybond is also suitable to be added to ROCKCOTE Quick Render Grey, Quick Render Fine, Quick Float or Quick Render Off-White to increase adhesion strength.

When Acrybond is used as a primer, it should be thinned with water. Acrybond can be thinned with up to 70% water when used as a primer, depending on the absorbency of the substrate. It can be applied via brush, roller or spray.

Acrybond should be applied directly to the substrate and is recommended prior to the use of suitable Quick Renders on highly absorbent substrates such as AAC. The typical dilution rate for Acrybond when used as a primer for AAC is 50%. Applying Acrybond as a primer reduces the suction of the substrate drastically, increasing the working time of the subsequent coat of Quick Render and enabling the Quick Render to retain enough moisture to cure properly over time and to not become dry.

Adding Acrybond to Quick Render Grey, Quick Render Fine, Quick Float or Quick Render Off-White can help increase the strength and hardness of the render. This is required if Quick Render Grey, Quick Render Fine, Quick Float or Quick Render Off-White are applied in any single coat at less than 4mm over any substrate or in any system.

When adding Acrybond to Quick Render Grey, Quick Render Fine, Quick Float or Quick Render Off-White, it should be added to the gauging water mix at around a 10% Acrybond solution. Acrybond should not be directly added to dry Quick Render. The drying time of Quick Render Grey, Quick Render Fine, Quick Float and Quick Render Off-White may be reduced when Acrybond is added to the gauging water mix.

Contact ROCKCOTE for a specification for your project and advice on the Acrybond and water mix required for your purposes.

Acrybond is available in 4Ltr, 15Ltr buckets and 20Ltr drums.

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