Concrete Repair & Protection · Repair Mortars
SikaRep®
1-Component, Fibre-Reinforced, Low-Shrinkage Concrete Repair Mortar
Sika TDS In stock
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Concrete Repair & Protection · Repair mortars
Sika MonoTop®-620
Polymer-Modified Surfacing & Levelling Structural Repair Mortar (EN 1504-3 Class R3)
Sika TDS On demand
Available on order Not held in stock. Ask us for the current lead time and minimum order.
- One Component Requires only the addition of water.
- EN 1504-3 Class R3 Meets Class R3 structural repair requirements.
- Pore Sealer / Leveller Seals pores and levels concrete and mortar surfaces.
- Vertical & Overhead Can be applied by trowel or wet spray on vertical and horizontal elements.
- System Compatible Applies over concrete, mortar, SikaTop and MonoTop mortars.
Price on request — quoted per project.
- Sika products supplierIslamabad & Rawalpindi.
- Get a quote on WhatsAppSend your product and quantity for current pricing.
- Technical support from MCTOur team helps you choose the right solution.
- DeliveryContact our team to confirm delivery and lead times to your location.
Product at a glance
Mixing water
~4.0 litres of water for 25 kg bags; 100:16 (powder: water)
Application thickness
min. 1.5 mm/ max. 5.0 mm
Pot life
~30- 45 minutes at +20 °C BASIS OF PRODUCT DATA
Temperature range
+5 °C minimum; +30 °C maximum
Key benefits
- One Component
- EN 1504-3 Class R3
- Pore Sealer / Leveller
- Vertical & Overhead
- System Compatible
- Low Shrinkage Finish
Sika MonoTop®-620 — Polymer-Modified Surfacing & Levelling Structural Repair Mortar (EN 1504-3 Class R3)
Sika MonoTop®-620 is a one-component, polymer-modified, ready-to-mix surfacing and finishing structural repair mortar meeting the requirements of Class R3 of EN 1504-3. It is used as a concrete/mortar pore sealer, levelling mortar or thin-layer render over vertical and horizontal structural elements, and for repairing minor defects such as pores and honeycombed concrete. It can be applied over concrete, mortar, SikaTop or Sika MonoTop mortars, with or without a reinforcement mat.
Recommended uses
- Pore sealing and levelling of concrete and mortar
- Thin-layer render over structural elements
- Repair of minor defects, pores and honeycombing
- Finishing coat over repair mortars
- Vertical and horizontal surface repair
Technical information
Technical information
Verified performance data for Sika MonoTop®-620, taken directly from the Sika Pakistan Product Data Sheet.
| Chemical Base | Cement, selected aggregates, silica fume and synthetic resins |
|---|---|
| Packaging | 25 kg bags |
| Appearance / Colour | Light grey powder |
| Shelf Life | 12 months |
| Storage Conditions | Store properly in undamaged original sealed packaging, in dry cool conditions |
| Density | Fresh density of mortar ~2.2 kg/l (at 20 °C) |
| Maximum Grain Size | D : 0.7 mm max Soluble Chloride Ion Content (EN 1015-17) < 0.01 % |
| Compressive Strength | (EN 12190) ~43 MPa Modulus of Elasticity in Compression (EN 13412) ~22 GPa |
| Tensile Strength in Flexure | (EN 196-1) ~8 MPa (28 days) Restrained Shrinkage / Expansion (EN 12617-4) Restrained Shrinkage ~2.0 MPa Restrained Expansion ~2.0 MPa |
| Tensile Adhesion Strength | (EN 1542) ~2 MPa |
| Mixing Ratio | ~4.0 litres of water for 25 kg bags; 100:16 (powder: water) |
| Consumption | This depends on the substrate roughness and thickness of layer applied. As 2 a guide, ~17.4 kg of powder per m per cm thick |
| Yield | 25 kg of powder yields approximately 14.5 litres of mortar |
| Layer Thickness | min. 1.5 mm/ max. 5.0 mm |
| Ambient Air Temperature | +5 °C minimum; +30 °C maximum |
| Substrate Temperature | +5 °C minimum; +30 °C maximum |
| Pot Life | ~30- 45 minutes at +20 °C BASIS OF PRODUCT DATA |
Source: Sika Pakistan product identity, Sika MonoTop®-620 (pak.sika.com). Full numerical specifications: request the latest Sika Pakistan PDS.
Packaging & storage
Packaging & storage
Packaging
25 kg bag (approx. 14.5 litres of mortar per 25 kg)
Storage
Store in original, unopened and undamaged sealed packaging in dry conditions between +5 C and +35 C. Always refer to packaging.
Application guide
Application guide (5 easy steps)
- Substrate PreparationThe substrate must be sound, clean and roughened by suitable mechanical means (e.g. abrasive blast or high-pressure water jetting) to achieve good adhesion. Remove all loose material, dust, oil and laitance.
- Pre-WettingThoroughly pre-wet the prepared substrate to a saturated surface-dry condition before application; remove excess surface water.
- MixingAdd the powder to the recommended quantity of clean water while stirring with a low-speed (<500 rpm) mixer, and mix for at least 3 minutes to the required consistency.
- ApplicationApply by trowel using traditional techniques or by wet-spray equipment. On a well-prepared, roughened substrate a bonding primer is generally not required.
- Finishing & CuringFinish to the required surface once stiffened, then cure the mortar properly, especially in hot conditions, to prevent premature drying and shrinkage.
Follow the official Sika Technical Data Sheet for full application details.
Technical documents
Data sheets for this product
More data sheets in Concrete Repair & Protection
FAQs
Frequently asked questions
What is Sika MonoTop®-620?
A one-component, polymer-modified structural repair and finishing mortar (EN 1504-3 Class R3) used as a pore sealer, levelling mortar and thin render.
Does it need a bonding primer?
On a well-prepared, roughened substrate a bonding primer is generally not required.
How is it applied?
By trowel or wet-spray equipment onto a pre-wetted, saturated surface-dry substrate.
What packaging is available?
25 kg bags, yielding approximately 14.5 litres of mortar per bag.
Where are the full technical specifications?
Detailed figures are provided in the current official Sika Pakistan Product Data Sheet, available on request.
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