Sika MonoTop®-910 N
Bonding primer and reinforcement corrosion protection
Sika MonoTop®-910 N is a cementitious, polymer modified one-component coating material containing silica fume used as bonding primer and reinforcement corrosion protection.
- CE certified to EN 1504-7
- Can be applied with a brush or by wet spray technique
- Easy to use just add water
- Adhesion to concrete and steel
- Good resistance to water and chloride penetration
Usage
- Suitable for control of anodic areas (Principle 11, method 11.1 of EN 1504-9)
- Suitable as a bonding primer as part of a concrete repair system
- Suitable as reinforcement corrosion protection as part of a concrete repair system
Advantages
- CE certified to EN 1504-7
- Can be applied with a brush or by wet spray technique
- Easy to use just add water
- Adhesion to concrete and steel
- Good resistance to water and chloride penetration
Packaging
25 kg bag
Colour
Grey powder
Product Details
Composition
Portland cement, silica fume, re-dispersible polymer powder, selected aggregates and additives
Shelf Life
6 months from the date of production
Storage Conditions
Store properly in undamaged original sealed packaging, in dry cool conditions between +5 °C and +35 °C.
Density
Fresh mortar density ~2.0 kg/l
Soluble Chloride Ion Content
≤ 0.01 % | (EN 1015-17) |
System Structure
Sika MonoTop®-910 N is part of the range of Sika mortars comprising of:
Bonding Primer / Reinforcement Corrosion Protection | |
Sika MonoTop®-910 N | Normal Use |
Repair Mortar | |
Sika MonoTop®-412 MY, R and 50 R | Concrete Repair Mortars |
Levelling Mortar | |
Sika MonoTop®-620 MY, -711 MY | Normal use |
Sikagard®-720 EpoCem® HC | Demanding requirements |
Tensile Adhesion Strength
~2.0 MPa after 28 days | (EN 1542) |
Shear Adhesion
Pass | (EN 15184) |
Diffusion Resistance to Water Vapour
~300 µH2O
Diffusion resistance to carbon dioxide
~3 800 µCO2 |
Corrosion Test
Pass | (EN 15183) |
Application
Mixing Ratio
For brush application ~5.25 litre water (21 %) per 25 kg bag
For spraying application ~5.0 litre water (20 %) per 25 kg bag
Layer Thickness
As bonding primer - sufficient to coat the concrete surface in a thin layer filling unevenness, pores and pits
As reinforcement corrosion protection - 2 mm minimum thickness
Ambient Air Temperature
+5 °C min. / +30 °C max.
Substrate Temperature
+5 °C min. / +30 °C max.
Pot Life
~90–120 minutes at +20 °C
Waiting Time / Overcoating
Apply concrete repair wet on wet with bonding primer
Apply concrete repair wet on dry reinforcement corrosion protection
Consumption
As Bonding Primer - This depends on the substrate roughness and thickness of layer applied. As a guide, ~1.5–2.0 kg of powder per m² per mm thick.
As Reinforcement Corrosion Protection - As a guide, ~2.0 kg of powder per m² per 1 mm layer thickness
Yield
25 kg of powder yields approximately 14.3 litres
MIXING
Sika MonoTop®-910 N can be mixed with a low speed (< 500 rpm) hand drill mixer or by hand for a small quantity,
Pour the recommended water in a suitable mixing container. While stirring slowly, add the powder to the water and mix thoroughly at least for 3 minutes.
APPLICATION
As Bonding Primer
Thoroughly pre-wet the prepared substrate a recommended 2 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 shall appear a dark matt appearance without glistening and surface pores and pits shall not contain water. Using a suitably clean brush, roller or suitable spraying equipment cover the substrate in a thin layer filling all unevenness, pits and pores.
As Reinforcement Corrosion Protection
Using a suitably clean brush or spraying equipment apply a first layer to cover the reinforcement bars approximately 1 mm thick. When first coat is hard to the finger nail apply second layer approximately 1 mm thick. If using a spray method protect substrate from excessive over-spray wiping away any concentrated accumulation and wait until completely dry before to apply repair mortar.
CURING TREATMENT
As reinforcement corrosion protection - protect the fresh mortar immediately from premature drying and contamination using an appropriate curing method
CLEANING OF TOOLS
Clean all tools and application equipment with water immediately after use. Hardened material can only be mechanically removed.