Rockcote Skimcote V6

Rockcote Skimcote V6 is a polymer modified thin section cement render ideal for rendering and/or patching masonry surfaces, providing an even finish for the subsequent application of conventional paints or textured coatings. Rockcote Skimcote V6 is suitable for all masonry substrates including difficult surfaces such as A.A.C. or off-form concrete.

Skimcote V6 exhibits high strength and excellent adhesion to difficult substrates even when applied in thin sections (3 - 6mm).

Skimcote V6 provides a water repellent coating and is manufactured without the addition of hydrated lime, making it more compatible with acrylic based paints and applied finishes . Supplied to the building site in convenient 20 kg paper sacks, Skimcote V6 is a pre-mixed powder product to which only clean water is added on site prior to application.

COMPOSITION

Rockcote Skimcote V6 is a polymer modified thin section render based on Portland Cement conforming to Australian Standard 3972. Finely graded quartz sand is used as the primary filler. Performance is enhanced through the addition of polymer and proprietary additives to improve the application, adhesion and water repellent properties of the render.

Hydrophobing Agent

Rockcote has carried out extensive research to achieve the controlled water repellent characteristics exhibited by Skimcote V6 while increasing the adhesion of subsequent applications.

Time and Cost Savings

Skimcote V6 is quicker to apply than standard cement render. Rockcote Skimcote V6 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 Skimcote V6 has dried if the Skimcote V6 is fully cured and moisture content of the Skimcote V6 is less than 15% WME. ^ Rockcote Skimcote V6should not be left uncoated for an extended period of time and should be painted with an acrylic primer and texture coatings or Rockcote Armour as soon as practicable within 28 days after being fully cured.

Rockcote Skimcote V6 is ideally suited to machine application, which can further increase the speed of application

Limitations

Rockcote Skimcote V6 should not be used over cement sheeting or painted surfaces.

Although Rockcote Skimcote V6 exhibits greatly improved performance characteristics and reliability over conventional cement renders, it is essentially a mineral based decorative render and good trade practices should be adhered to at all times.

For example, provision of expansion joints where indicated by the substrate or at the junction of different substrates, and ensuring finished work is correctly cured by regular re-wetting with water for several days after application in hot or dry conditions.

APPLICATION

Thin Section Rendering (3 - 6mm)

Rockcote Skimcote V6 may be used as a cement render over all common building substrates.

Large hollows and deviations in the surface are first filled and screeded with Skimcote V6 prior to application of the final coat. Rockcote Skimcote V6 is applied by steel trowel to a thickness of approximately 3 - 6mm, with 3mm being the minimum for one application.

Patching Blocks and Bricks

Rockcote Skimcote V6 is applied by trowel or spatula, to patch imperfections and joints between blocks & bricks.

Reinforced Rendering for Expanded Polystyrene Blocks or Cladding

Refer specification for Rockcote Lightweight Systems.

Off-form Concrete and Tilt-slab Walls

For patching "blow holes", form joints and minor imperfections, Rockcote Skimcote V6 is applied by trowel or spatula and may be sponged into the "blow holes". For filling large imperfections such as lifting bolts or breakages, Rockcote Skimcote V6 is applied "proud" of the surface. As the material sets it is screeded off and floated to a smooth finish.

The application of Rockcote Skimcote V6 is a specialist procedure and should only be carried out by a skilled and experienced applicator and in accordance with our technical specifications.

SURFACE PREPARATION

• Surfaces must be clean and free of oil, grease, dirt, mould and other contaminants.
• Over normal masonry substrates no further preparation is required.
• 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 Skimcote V6 into 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 Skimcote V6.
• 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.

Rockcote PM100 can be applied by traditional Hawk and Trowel or machine (See table).

It is important to mask up all surrounding surfaces before rendering to avoid contact with PM100 especially aluminium window frames and glass.

As the Skimcote V6 dries it can be floated with a wooden or polystyrene float. This surface is suitable for a textured coating. A surface ready to accept paint is achieved by using a soft sponge or sponge-float over the floated area.

Acrylic Finishing Coats

Rockcote Skimcote V6 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 in hot conditions after rewetting.

Before application of acrylic texture finishes the dry Skimcote V6 surface should have moisture content of less than 15%WME and be sealed with one coat of Rockcote Masonry Primer, Hi-Op Primer or EcoStyle Sealer/ Undercoat.

NOTE: Surfaces need not be completely dry or moisture free. Application of Skimcote V6 may proceed once the "shine" is off the surface.

STORAGE, SAFETY and HANDLING

Refer to Rockcote’s MSDS for Skimcote V6

• Rockcote Skimcote V6 must be kept dry during transportation and storage.
• When working with Skimcote V6 observe the usual precautions for handling cement and waterborne acrylic based products.
• Avoid inhalation of the powder or vapour, prolonged skin contact and particularly eye contact.
• If contact occurs, flush thoroughly with clean water.
• In the case of Skimcote V6, if ingestion occurs, drink at least 2 glasses of water and consult a physician.
• 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.

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.