Sika MonoTop®-4400 MIC

• CE Marking and Declaration of Performance to EN 1504-2 - Surface protection product for concrete - Coating - Sika MonoTop®-4400 MIC
• CE Marking and Declaration of Performance to EN 1504-3 - Concrete repair product for structural repair - Sika MonoTop®-4400 MIC

Calcium aluminate cement and calcium aluminate aggregates

15 months from date of production

Product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C and +35 °C. Always refer to packaging.

D_max: ~3.0 mm

2.8–3.2 litres of water for 20 kg powder

~2.2 kg/l

Standard manholes: Minimum 15 mm

Large structures such as wet wells or pumping stations: Minimum 25 mm.

Minimum 12 hours at +20 °C

~22 kg / 10 mm thickness / m².

20 kg of powder yields approximately 10.5 litres of fresh material

Sika MonoTop®-4400 MIC can be mixed with a low speed (< 500 rpm) hand drill mixer or using a force action mixer.

Pour the minimum recommended water in a suitable mixing container. While stirring slowly, add powder to the water and mix thoroughly for at least 5 minutes adding additional water if necessary up to the maximum specified amount and adjust to the required consistency. The consistency must be checked after every mix.

Sika MonoTop®-4400 MIC can be applied mechanically using a low pressure wet-spray equipment,progressive cavity type pump, spinning head or centrifugation method. Prepare the hose of the machine with a cement aluminate slurry or with a suitable chemical pump starter. Do not use Portland cement slurry. Thoroughly pre-wet the prepared substrate a recommended 12 hours before application. Keep the surface wet and do not allow to dry. Before application remove excess water e.g with a clean sponge. The surface must appear a dark matt appearance without glistening and surface pores and cavities must not contain water.

The repair mortar must be applied onto the pre-wetted substrate between the minimum and maximum layer thicknesses without the formation of voids. Where layers are to be built up, to prevent sagging or slumping,each layer must be allowed to stiffen before applying subsequent layers “wet on wet”.Finishing must be carried out to the required surface texture as soon as the mortar has started to stiffen. Do not overwork the finishing layer.

If the application takes place in a live sewer environment, replacing the access covers as soon as the spaying and finishing is complete should ensure adequate moisture for good hydration and curing.

For environments with low humidity or with exposure to direct sunlight and/or strong air movement. To minimise rapid moisture evaporation and surface cracking, water curing must be applied as soon as practical after installation in addition to replacing the access covers.

Once the surface finishing is complete. To accelerate the hardening process and at the same time to provide adequate curing, apply Sikagard®-230 MIC surface hardener with low pressure spraying equipment.  Conventional curing compounds are not recommended.

Clean all tools and application equipment with water immediately after use. Hardened material can only be mechanically removed.