Rockcote Quick Render

Rockcote Q-Render is a pre-blended cement render manufactured to exacting specifications from high quality materials. Q-Render only requires the addition of clean water with Acrybond * or water only and mixing immediately before application.

Properly cured Q-Render exhibits minimal drying shrinkage and is a reliable surface for over-coating with acrylic textures and paints. It is also suitable for 1 coat application to most common stable masonry substrates when applied in accordance with this specification.

Rockcote Q-Render meets the requirements of the professional tradesperson and the demands of modern construction materials and methods.

PERFORMANCE & PROPERTIES

Rockcote Q-Render is manufactured under controlled conditions. Consistent quality is assured.

Composition

Rockcote Q-Render is composed of high quality, washed and graded sand, Portland Cement conforming to Australian Standard 3972 and proprietary additives.

Application properties, adhesion and water resistance as well as consistency of product blend are all superior to site blended sand and cement render.

Time and Cost Savings

Q-Render is quicker to apply than standard cement render. Rockcote Q-Render requires less clean up and greatly reduced curing time before the application of finish coats. Under normal conditions, the application of Rockcote acrylic paint or texture coatings may be commenced two days after Q-Render has dried if the Q-Render is fully cured and moisture content of the Q-Render is less than 15% WME. ^ Rockcote Q-Render should not be left uncoated for an extended period of time and should be painted with a Rockcote acrylic primer product, Rockcote Armour or other specified Rockcote product as soon as practicable within 28 days after being fully cured. Refer to Rockcote Render (RR) System- Performance Codes to select a suitable rating for your requirements.

Rockcote Q-Render is suitable for machine application, which can further increase the speed of application.

Water Resistant - Properly cured Rockcote Q-Render is water repellent, reducing the risk of efflorescence or rising damp.

Adhesion – adheres well to all properly prepared common masonry substrates such as bricks, concrete blocks, AAC and Hebel.

APPLICATION

Surface Preparation

• Rockcote Q-Render should only be used over sound masonry substrates.
• All surfaces must be clean and free from dirt, dust, oil, grease, silicone or loose materials before application.
• Dry masonry surfaces must be wetted with clean water. Do not apply Q-Render until the wet look has diminished and the surface has absorbed the free water.
• Low suction substrates such as smooth concrete or smooth bricks should be treated with a “key” coat prior to the application of the render after being cleaned. The key coat is prepared by mixing Q-Render into a slurry with 25% Acrybond in the gauging water and applied to the wall with a spray-gun, sponge, brush or roller. This coating should be allowed to dry for 24 hours before applying the Q-Render.
• Over highly porous surfaces such as (A.A.C. Hebel), seal first with one coat Rockcote Acrybond mixed with an equal part of water to control suction and improve adhesion.

It is important to mask up all surrounding surfaces to avoid contact with Q-Render especially aluminium window frames and glass.

Acrylic Finishing Coats

Rockcote Q-Render has been specifically formulated without the addition of hydrated lime and is readily over coated with acrylic paints, texture finishes and lime washes after 48 hours if properly cured and containing less than 15% WME moisture content.

Before application of texture finishes the Q-Render surface should be sealed with one coat of a Rockcote primer product such as Texprime, Masonry Primer, Hi-Op Primer or EcoStyle Sealer/Undercoat.

Do not apply any coatings other than Rockcote coatings in accordance with Rockcote Technical Specifications or conventional thermoplastic acrylic coatings over Q-Render without consulting Rockcote.

LIMITATIONS

• Q-Render should not be applied over cement sheet or previously painted surfaces.
• Q-Render should not be applied in temperatures below 3 OC or in very hot and windy conditions or above 30 OC.
• Q-Render coatings should not be subjected to freezing temperatures for 24 hours after application.
• Q-Render coatings should not be in contact with heavy rain for 8 hours after application.

STORAGE, SAFETY and HANDLING

Refer to Rockcote MSDS for Q-Render

• Rockcote Q-Render must be kept dry during transportation and storage.
• When working with Rockcote Q-Render, observe the usual precautions for handling cement and water acrylic based products.
• Avoid inhalation of the powder, prolonged skin contact and particularly eye contact.
• If skin or eye contact occurs then flush thoroughly with clean water.
• In the case of Acrybond, if ingestion occurs then drink at least two glasses of water and consult a doctor as soon as possible.
• Wear protective clothing to minimise skin contact and wear goggles where splatter is likely.
• Where spills occur, sweep up dry material or soak up liquid spillage with sand/sawdust and remove to suitable disposal.
• Clean up equipment and area with water. Do not permit run-off to sewer, storm water or open bodies of water.

The application of Rockcote Q-Render is a specialist procedure and should only be carried out by a skilled and experienced applicator in accordance with Rockcote Technical Specifications.

Indemnity

Rockcote Enterprises Pty Ltd will not accept responsibility for any misuse of this product or if not applied by a skilled and experienced applicator and in accordance with our technical specifications.

Due to our policy of continuing product improvement Rockcote Enterprises Pty Ltd reserves the right to change these specifications without further notice.

Revised August 2008