Product Data Sheet Show all documents

Sika® Chapdur® Premix

NON METALLIC FLOOR HARDENER

A ready to use mixture of cement, pigments, additives and hard aggregate of mineral origin. The particles have been specially selected for their shape, grading, high physical quality and mechanical performance.

  • High resistance to abrasion.
  • Reduce surface dust.
  • Improves resistance to impact.
  • Wide range of colour.
  • Easy application, Sika® Chapdur® Premix is sprinkled into the freshly placed concrete.
  • Even finish obtainable when properly smoothed.
Product Data Sheet Show all documents

Usage

Sika® Chapdur® Premix is added to slab surface to improve their resistance to abrasion and inhibit dust formation. Sika® Chapdur® Premix is suitable for all floor exposed to severe mechanical wear for example:
  • Warehouse.
  • Quays.
  • Traffic lanes.
  • Engineering workshop.
  • Car-parks.
  • Service stations.
  • Garage etc.  

Advantages

  • High resistance to abrasion.
  • Reduce surface dust.
  • Improves resistance to impact.
  • Wide range of colour.
  • Easy application, Sika® Chapdur® Premix is sprinkled into the freshly placed concrete.
  • Even finish obtainable when properly smoothed.

Packaging

25Kg Bag

Colour

Grey

Product Details

Product Information

Shelf life

12 months minimum from production date.

Storage conditions

The product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between 5°C and 35°C. Protect from direct sunlight.

Density

~ 1.4 kg/litre.

 

Application

Consumption

Consumption

Average consumption : 3 kg to 6 kg per m2, depend on job requirement

Light duty :                                                                             3 kg/m2

Medium duty :                                                                    4-5 kg/m2

Heavy duty :                                                                           6 kg/m2

Yielding a surface strengthening coat of approx. 2-3 mm thickness.
Application steps

APPLICATION INSTRUCTIONS

Broadcasting

The concrete slab is ready for the Sika® Chapdur® Premix cement coating when a thumb pressed hard onto the surface only leaves a ‘print’ of about 3-5 mm depth. Broadcast the mix evenly by hand or with suitable device.

Compaction

Wait until the Sika® Chapdur® Premix has been evenly moistened by the water in the concrete, use a low rpm mechanical trowel, held perfectly flat.

Note: If parts of the surface come loose or if the laitance rises, this means the concrete is still too fresh.

Smoothing

As soon as the plasticity or initial set allows, perform preliminary smoothing with the same machine running at low speed but equipped with metal smoothing blades, set at minimum angle.

Any final smoothing required should be performed later with the machine running at high speed.

Joints

Construction joints, expansion joints and floor joints should be saw-cut only after 24 hours. When the slab has hardened, the joints can be filled with the appropriate Sikaflex Sealant in accordance with the floor requirements.

 

Documents