SANDCOTE

Product Technical Data Sheets

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Rockcote Sandcote Plus

Rockcote Sandcote Plus is a ready mixed, pre-coloured acrylic coating ideal for covering and decorating suitably prepared interior or exterior surfaces such as:

  • Concrete
  • Concrete Blocks
  • Cement Render
  • Hebel A.A.C .
  • Fibro Cement Sheeting
  • Brickwork
  • Expanded Polystyrene
  • Plaster Board
  • Most common building substrates, when properly prepared

Rockcote Sandcote Plus effectively imparts a seam-free solid rendered effect and natural ambiance to drab concrete walls with the performance properties of modern flexible 100% acrylic polymer protection.

PERFORMANCE and PROPERTIES
Adhesion

Rockcote Sandcote Plus exhibits excellent adhesion to all common building materials if correct surface preparation is carried out in accordance with Rockcote Specifications.

Durability

Sandcote Plus is knock resistant, scuff resistant and can resist extremes of weather and attack from fungi and mould. For exterior use, where a higher level of water resistance, dirt/ mould pick up resistance and durability is required, Sandcote Plus should be over coated with Rockcote Armour products, Clearcote or Ecostyle Low Sheen see Rockcote Render System-Performance Codes for more information. Before over coating Sandcote Plus with a paint coating refer to the Rockcote application specification.

Cutting In and Avoiding Picture Framing.

Sandcote Plus provides a flexible finish that is resistant to micro-cracking caused by thermal expansion and contraction of the substrate. Sandcote Plus also remains vapour permeable, allowing the walls to “breathe”.

Colours Available

Rockcote Sandcote Plus can be tinted to a wide range of colours from soft natural tones to vibrant colours. Sandcote Plus offers optimum aesthetic appearance when lightly coloured and is particularly suitable for soft natural colours where the patinae nature of the Sandcote Plus finish creates a similar effect to natural stone or clay surfaces. In these applications it is important to neutralise the visual contrast aspects of the substrate with a good opacifying primer such as Rockcote Texprime. Light-fastness of chosen exterior colours must be confirmed before ordering.

Sandcote Plus Provides a natural sand finish including colour not from the natural aggregate. If this effect is not the desired effect, then over-coat with two coats of Rockcote Armour Plus.

APPLICATION
Surface Preparation

All surfaces should be clean and free from loose material such as drummy sections and flaking paint. Powdery surfaces should not be coated with Rockcote Sandcote Plus. Glossy surfaces should be lightly sanded and washed clean. Dirty surfaces should be washed down with warm water mixed with biodegradable detergent and flushed with clean water. Mould should removed by cleaning and surfaces treated with a proprietary surface sanitiser with residual action. Fill cracks and other surface imperfections with suitable Rockcote patching compounds.

Only dry surfaces should be painted and substrates must contain less than 15% WME (Wood-Moisture-Equivalent) before painting. Rockcote pre-bagged cement based renders can be coated 48 hours after dry. Other new cement based surfaces should not be coated until 30 days old.

Concrete Block and Brick Walls

(Where mortar joints and other imperfections need to be concealed)
Rockcote Skimcote V6 or Quick Render should be applied according to specifications and left as a float finish.
A coat of any Rockcote water–bourne primer is then applied followed by one or more coats of Rockcote Sandcote Plus. The Primer should be tinted to the same or similar colour as the Sandcote Plus.
Sandcote Plus is applied by steel trowel and evened out with a polystyrene float then finished with a plastic or polyurethane float.

A wet edge should be maintained throughout the application and day joints formed at corners, expansion joints or mouldings where they will not be evident in the finish. Finished work must be protected from severe weather conditions for 48 hours after application and protected from damage until the completion of the project.

Smooth Surfaces

(Previously rendered masonry, concrete or cement sheeting)
Apply one coat of Rockcote Texprime followed by one coat of Rockcote Sandcote Plus as described above.
To obtain a more even finish on uneven masonry surfaces, the primer coat should be replaced by one trowelled coat of Rockcote Polymer Render.

LIMITATIONS

Application should not be carried out in temperatures below 5 ° C or above 35 ° C or in strong winds. Rockcote Sandcote Plus is manufactured from natural mineral sands and some variation in colour may occur from batch to batch so material should be ordered in job lots .Material from later batches should be restricted to separate areas where colour differences will not be noticed.

Sandcote Plus is not suitable for areas subject to total immersion in water, areas where water ponding may occur or for use on roof tops.

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

STORAGE, SAFETY and HANDLING
Refer to the Rockcote MSDS for Sandcote Plus
  • Pails should not be stacked more than three high during transportation and should be stored out of direct sunlight and above 4 ° C.
  • When working with Rockcote Sandcote Plus, observe the usual precautions for handling water borne acrylic based products.
  • Avoid inhalation of vapour, prolonged skin contact and particularly eye contact.
  • If skin or eye contact occurs, flush thoroughly with clean water and see a doctor if irritation occurs.
  • If ingestion occurs, drink at least two glasses of water and consult a doctor.
  • Wear protective clothing to minimise skin contact, and wear goggles where spatter is likely
  • MSDS Available on request.
  • In an emergency contact Poisons Information Ph: 13 11 26

Thinning

Sandcote Plus usually does not require thinning but may be thinned up to 5% by volume with clean water if required.

Clean Up

Clean with water immediately after use. Recently dried material can be removed with methylated spirits.

Flammability

Non Flammable

Drying(@55%
RelativeHumidity,25 oC)

Touch dry in 5 hours. Dry to recoat in 48 hours.
(Dry times vary with changes in temperature and humidity ).

Pack Size

15L Heavy Duty Plastic. Smaller sizes available on request.

Finish

Semi Gloss and highly textured.

Maintenance

Any identified damaged should be repaired as soon as possible. Refer to Rockcote specification on General Maintenance.

Durability

Excellent interior or exterior. See Rockcote Render System-Performance Codes

Sandcote Plus-Theoretical coverage per coat

0.5 to 0.7 m 2 /L (8 to 10 m 2 per 15L pail). Figures are a guide only. Coverage rates vary according to application technique and substrate preparation.

High Opacity Primer or Texprime -Theoretical coverage per coat

6.0 to 8.0 m 2 /L (90 to 120 m 2 per 15L pail).

Proper Disposal of excess and waste product
  • Spilt material must be absorbed with sand/sawdust and lifted for proper disposal. Spilled product must not be allowed to run into drains or open bodies of water. Residual small amounts of leftover paint on brushes and rollers should be wiped on to old newspaper and allowed to dry, rather than being washed down the sink. Dispose in accordance with Local Council regulations.
  • Rockcote Sandcote Plus is suitable for disposal through the RA Industries Reclaimer Portable Paint Wash Recycling System.
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 September 2008