Description
Applications
• Heavy industries.
• Power stations.
• Parking areas.
• Warehouses.
• Workshops.
• Loading bays.
• Service stations.
Advantages
• Dense surface resistant to oil and grease.
• High resistance to wear and abrasion.
• Easy to apply.
• Non oxidizing floor hardener.
• Premixed, ready to use.
• Reduces surface dust.
Base Concrete Limitations
The following concrete limitations and properties should be considered to obtain hard concrete surface with high abrasion resistance:
• The compressive strength is recommended should be higher than 25 MPa
• W/C ratio should be at a minimum required value to achieve fully compacted concrete.
• Concrete slump should be kept between 75 mm to 120 mm
• Cement content should be no less than 300 kg/m³.
• Proper concrete compaction and leveling is a must.
• Should free water be present at the surface this allowed to evaporate or brushed away before the application of CONTOP-HD(M)
Application Rate
CONTOP –HD (M) should be applied at the following rates: Medium duty floors 4 – 5 kg per m².
Heavy duty floors 6 – 7 kg per m².
Cleaning
All tools should be cleaned immediately after finishing by water.
Packaging
CONTOP-HD(M) is available in 25 kg bags.
Storage
CONTOP-HD(M) has a shelf life of 12 months from date of manufacture if stored at dry conditions and temperatures between 2°C and 50°C.
Cautions
Health and safety
As CONTOP-HD(M) contains Portland cement, may cause irritation to skin or eyes.
In case of accidental contact with skin or eyes, immediately flush with plenty of water and seek medical advise if necessary.
For further information refer to the Material Safety Data Sheet.
Fire
CONTOP-HD(M) is nonflammable.
How to Use
• The right time to spread the CONTOP-HD(M) on concrete surface is when light foot traffic leaves an imprint of about 3 – 6 mm.
• Broadcast the CONTOP-HD(M) evenly over the surface of to base concrete. Where manual trowelling is involved, application in two stages is recommended.
• The first stage should be to apply two thirds of the coverage rate of CONTOP-HD(M), and allow the material to absorb moisture form concrete. When a uniform dark colour appears, indicating that the material is wet, CONTOP-HD (M) should be trowelled in, either by hand or using a power float (pan fitted with blades). Stage two is to apply the remainder of the coverage rate and to repeat trowelling. For large floor constructions CONTOP-HD(M)can be spread and trowelled satisfactorily in one stage by mechanical means.
• Care must be taken not to wet the application of CONTOP-HD(M) with water addition not to affect the overall quality of the floor.
• Proper curing should be maintained and the surface to be marred by the curing method.
Timing of Application
Timing of CONTOP-HD(M) application is critical. Adequate machinery, labor and material should be available to complete the whole area while sufficient concrete moisture is available.
Applying CONTOP-HD(M) before or after the proper application time can seriously affect the quality of the concrete floor finish.
