Uses

• Cementitious rendering of internal and external walls.
• Application to prepared concrete, blockwork and masonry.
• Vertical, horizontal and overhead applications.
• Manual or machine-applied rendering.
• Preparing surfaces for decorative finishes and coatings.
• Suitable for hot-climate conditions.

Advantages

• Polymer-modified pre-mixed cementitious render.
• Good application properties and high workability.
• High bond strength and durability.
• Good mechanical properties.
• Compatible with decorative finishes.
• Suitable for internal and external use.
• Can be applied manually or by spiral-pump plastering machine.
• Available in white and grey.

Substrate Preparation

The substrate must be sound, clean and free from dust, dirt, oil, grease and contaminants. Dampen the surface before application without leaving standing water.

Mixing

1. Use approximately 5 litres of clean water for each 25 kg bag.
2. Slowly add RENDER powder while mixing.
3. Use a slow-speed drill with a high-shear paddle.
4. Mix for at least three minutes until homogeneous.
5. Use within its one-hour pot life.
6. Do not remix hardened material.

Application and Finishing

1. Apply manually using a steel trowel or mechanically with a spiral pump.
2. Compact the render firmly against the substrate.
3. Apply in layers between approximately 1.5 and 15 mm.
4. Allow each layer to stiffen before applying the next.
5. Finish using a wooden or plastic float.
6. Do not add water during finishing; use only a damp sponge when necessary.

Curing

Moisten the applied surface for two days. During hot, dry or windy conditions, continue fine water spraying for an additional two days.

Yield and Coverage

One 25 kg bag covers approximately 4 m² at a thickness of 15 mm, as stated in the TDS.

Cleaning

Clean tools immediately using water. Remove hardened material mechanically.

Storage and Shelf Life

RENDER has a minimum shelf life of 12 months when stored unopened in a dry, shaded place below 35°C.

Packaging

• 25 kg paper bags.
• 50 kg paper bags.

Health and Safety

• Wear protective gloves, goggles and a dust mask.
• Avoid contact with the skin and eyes.
• Wash skin contact with soap and water.
• Rinse eye contact with plenty of clean water.
• The product is non-flammable.

Quality and Technical Support

WHITE SAND provides technical assistance regarding substrate preparation, rendering, machine application, finishing and curing.