The substrate to which Specialized Resin is to be applied must be installed in strict accordance with the manufacture&rsquo ; s specifications and recommended installation procedures. For concrete/masonry substrates the suppliers required curing time must be allowed after installation to ensure the joints in the substrate have completed cured, shrunk, and stabilized. All solid concrete substrates must be fully cured and dry. New concrete must be at least 21 days old prior to the application of any render product.

Surface imperfection such as blowholes, large cracks and spalling must be patched and levelled to the required tolerances and flatness with Specialized render materials before this product is applied. All nibs, protrusions and excess mortar on the surface of the bricks or irregularities in the slab must be ground off prior to rendering.

All surfaces must be clean and free of debris, dirt and dust, efflorescence, grease, oils, curing agents, cleaning solutions, mould and algae or any other contaminants that may affect adhesion. Deeply contaminated substrates must be abraded to provide a clean sound surface. All loose or damaged material must be removed by water blasting, captive shot blasting, or mechanical wire brushing and then washed down before rendering commences.

Painted or glossy surfaces such as power floated concrete must be specially primed, acid etched or mechanically abraded prior to the application of any render.

If Specialized Resin is used as:

A Plaster flexibility or bonding aid: add 1L per 20Kg of dry mixed powder when preparing a mix to increase adhesion and glue content when extra adhesion is required. Apply the render following the instruction of the chosen product.

Sealing agent: Dilute Specialized Resin at a rate of 1 part resin to 2 parts water. Apply with a pump up sprayer, long nap roller or wide paint brush at a spread rate of 10-12m2 per litre. Plastering can commence as soon as the sealer has dried.

For full system details refer to the Specialized installation guide.