SIKA MONOTOP 412 MY (25KG) Structural Repair Mortar for hand placed / Wet spray repair mortar

DESCRIPTION

Sika MonoTop-412 MY is a single component, fibre reinforced, low shrinkage structural repair mortar. Fast repairs to overhead, horizontal or vertical concrete or mortar surfaces above and below ground level.

USES

Fast repairs to overhead, horizontal or vertical concrete or mortar surfaces above and below ground level

Suitable for restoration work. Repair of spalling and damaged concrete in buildings, bridges, infrastructure and superstructure works

Suitable for structural strengthening. Increasing the bearing capacity of the concrete structure by adding mortar

Suitable for preserving or restoring passivity. Increase cover with additional mortar and replace contaminated or carbonated concrete

CHARACTERISTICS / ADVANTAGES

Superior workability

Suitable for hand and machine application

Can be applied up to 50 mm thick per application layer

Structural repair

Very low shrinkage behaviour

Does not require a bonding primer even when manually applied (for static load only)

Low permeability

Mixing Ratio

3.54.0 L of water for 25 kg powder

Layer Thickness

6 mm min. / 50 mm max.

Consumption

Depends on the substrate roughness and thickness of layer applied.

As a guide, ~19 kg of powder per cm thick per m

MIXING

Sika MonoTop-412 MY can be mixed with a low speed (< 500 rpm) hand-drill mixer fixed to a mixing paddle or using a force-action mixer, 2 to 3 bags or more at once depending the type and size of mixer. In small quantity, Sika MonoTop-412 MY can also be mixed manually using a trowel or scrapper in a clean container.

Pour the water in the correct proportion into a clean mixing container. While stirring slowly, add the powder to the water. Mixed thoroughly for a minimum of 3 minutes, until the required consistency.

APPLICATION

Sika MonoTop-412 MY can be applied either manually using traditional techniques or mechanically using wet spray equipment.

When a bonding primer is required, ensure it is still tacky when the repair material is applied (wet on wet technique). When applied manually, pressed the repair mortar with a trowel, working it well into the substrate.

Finishing for both hand and machine application can be done with the relevant roughcast as soon as the mortar has started to stiffen.