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Obaproof

Premix Plaster 9921

Ready Mixed Plaster

 

Obaproot Premix Plaster 9921 is a specially formulated cement-sand base render containing cement, graded sand and chemicals for a wide range of applications from wall rendering to bricklaying. It is pre-packed cement and sand plaster to replace the traditional on-site mixes of cement and sand. Obaproof Premix Plaster 9921 is ready to use just by adding water and can trowel up to a maximum thickness of 20mm. It is suitable for both interior and exterior applications. With a single application thickness of 6 – 12 mm can be troweled to a sponge finish.

 

Packing:
3KG/25KG/40KG

 

Appearance:
Colour: Grey

Description

Characteristics & Advantages

• Easy to use
• Cost and time saving
• Require less labour
• Consistent on product quality
• Reduce wastage of materials
• Good workability and bonding

Application Area

Obaproof Premix Plaster 9921 can be applied to a wide range of substrates such as: Concrete walls and brick walls, bricklaying, lightweight block walls, cement-rendered walls, hollow block walls & calcium silicate brick walls. Ceramic tiles and natural stones can be fixed on the finished surface.

Pot Life / Shelf life

Pot life
1 hour
Shelf life
6 – 9 months if stored in a cool and dry location.

Surface Preparation

The substrate must be clean, free of dust, oil, grease, etc.

Application

Mix 40kg of Obaproof Premix Plaster 9921 with 12 litres of clean water until a desired homogeneous paste is achieved. Additional water can be added if required. Always use an electric drill mixer and ensure the mix is free from lumps before use. A resting time of 3 minutes is recommended for best consistency. Obaproof Premix Plaster 9921 mortar is applied using a steel trowel or spatula. As good practice, a maximum
thickness of 8mm is recommended (2-3 coats).

Coverage

Approx. 1.6kg /m²/mm thickness
Mixing

Add Obaproof Premix Plaster 9921 to the recommended amount of clean water by weight. An electrical mixer is recommended to stir for about 5 minutes to obtain a homogeneous paste.

Technical Data

• Working time: approx. 30 min
• Water retention: > 90%
• Max. grain size: 2.4mm
• Wet density: 1.9kg/Litre
• Compressive strength: > 12N/mm²
• Tensile adhesive strength: 0.5N/mm
• Packing mixing water ratio: 16% – 18%
• Toxicity: None

Safety

Avoid eye and skin contact as the product is alkaline. In case of eye contact, flush with plenty of water for at least 15 minutes. Seek medical help immediately.

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