Flexible floor levelling compound Description
A two component system comprising an acrylic polymer and cement based powder. The components are mixed on site to produce a self smoothing, flexible floor levelling compound which spreads easily on to suitably prepared substrates at up to 6mm thickness.
Specifically developed for use in temperatures ranging from 15°C to 60°C where added flexibility and adhesion are required.
Primary uses
To provide a durable, self smoothing floor surface which will protect the substrate from mild chemical attack and water penetration.
For use as an underlay for carpets and tiles.
Can be used as a light duty floor if coated with MASTERTOP 1110 T.
Advantages
- Self smoothing
- Improved adhesion characteristics
- Water resistant
- Tensile strengths in excess of 160% of powder water mixes
- Improved flexibility
- Can be used on plywood or steel floors.
- Improved abrasion resistance
- Cushioning effect reduces fatigue and pedestrian noise.
- Supplied in pre-weighed units
- Easy to use
- Self curing
- Non dusting
Packaging
MASTERTOP 503 is supplied as a two component system of a liquid latex (5kg) and a grey powder base (20kg). Total pack size is 25kg. Yield is 14 litres.
Typical properties*
| Colour |
grey |
| Freezing point: |
0°C |
| Coverage: |
2.6kg per m² at a thickness of 1.5mm |
Application procedure
Surface preparation:
The floor to be treated must be free from dust, loosely adhering material, plaster and cement droppings, grease, oil and paint, etc.
Large, spalled areas, cracks and pot holes should be raked out and cleaned before applying MASTERTOP 503. Holes can be filled with a mixture of 3 parts MASTERTOP 503 POWDER, 1 part liquid latex and up to 2.5 parts of 1-4mm aggregate all measured by volume.
Porous surfaces such as concrete and sand: cement screeds should first be dampened down with water or (preferably) primed with a bonding agent such as RHEOMIX 121 diluted 2:1 with water or the latex component. Apply the MASTERTOP 503 mix to the primed area whilst still damp.
Timber surfaces should be primed with RHEOMIX 121 diluted with water. Steel surface should be primed with CONCRESIVE 1414. Allow the primer to become tacky before applying Mastertop 503.
Mixing:
Pour 90% of the resin component into a suitable mixing vessel. Using a suitable slow speed (300-400 rpm) drill fitted with a mixing paddle, mix the material until a smooth paste free from lumps is obtained, at which point the remainder of the resin can be added. Continue mixing until all the resin is absorbed.
Application:
Pour the mixed material onto the previously primed and tacky surface.
Using a trowel (notched or plain), pin screed or squeegee, spread the MASTERTOP 503 to the required thickness.
As soon as possible after levelling, roll the material with a spiked roller to release trapped air and achieve a flat surface.
Curing:
MASTERTOP 503 does not require curing, but it should be protected from wind, and water for 24 hours.
Watchpoints
- In warm weather store materials in cool room prior to use. Keep the mixed temperature less than 30°C. Ideal mixed temperature is 20°C. The lower temperature gives longer working time.
- Never re-constitute the mix after initial stiffening has taken place.
- Do not work at temperatures below 4°C.
- For use at thickness greater than 6mm, consult your MBT representative.
- Always turn off under floor heating and allow sub-floor to cool before the application of MASTERTOP 503 and do not switch it on again for at least 24 hours after completion.
Equipment care
Clean all equipment in water immediately after use.
Specification clause
MASTERTOP 503
All floors indicated shall be levelled with MASTERTOP 503, flexible floor levelling compound manufactured by Master Builders Technologies, or similar approved, complying to the following specification.
| Composition: |
Two component floor levelling / system comprising of liquid latex and a cementitious powder combined with selected fillers, and dispersing agents. |
MASTERTOP 503 is to be applied strictly in accordance with the manufacturers instructions.
Storage
Store out of direct sunlight, clear of the ground on pallets protected from rainfall. Avoid excessive compaction.
Failure to comply with the recommended storage conditions may result in premature deterioration of the product or packaging. For specific storage advice consult BASF ME's Technical Services Department.
Safety precautions
As with all chemical products, care should be taken during use and storage to avoid contact with eyes, mouth, skin and foodstuffs (which can also be tainted with vapour until product is fully cured or dried). Treat splashes to skin and eyes immediately. If accidentally ingested, seek medical attention. Reseal containers after use. For further information refer to the Material Safety Data Sheet.
Note
Field service, where provided, does not constitute supervisory responsibility. For additional information contact your local BASF representative.
BASF reserves the right to have the true cause of any difficulty determined by accepted test methods.
Quality and care
All products originating from BASF's Dubai, UAE facility are manufactured under a management system independently certified to conform to the requirements of the quality, environmental and occupational health & safety standards ISO 9000, ISO 14001 and OHSAS 18001.
05/95 BASF-ME revised 08/2002
* Properties listed are only for guidance and are not a guarantee of performance.