Sikafloor® MonoFlex MB-23
Sikafloor® MonoFlex MB-23 is a durable, flexible, smooth floor coating for balconies, terraces, stairs or terraces and it is part of the Sikafloor® MonoFlex flooring series. Sikafloor® MonoFlex MB-23 is composed of one part, pigmented, highly elastic, solvent containing, UV resistant, polyurethane layer which is left exposed as decorative floor or is optionally covered with a polyurethane, one component trafficable clear coat. Sikafloor® MonoFlex MB-23 makes use of Sika's unique i-Cure technology to improve surface aesthetics and reduce sensitivity for ambient humidity during application.
- Highly elastic
- Crack-bridging properties
- Waterproof
- Good UV yellowing resistance
- Weather resistant
- Abrasion resistant under normal traffic conditions
- Slip resistant surfaces are possible
System Structure
Usage
- For balconies, terraces, footbridges, stairways, galleries etc.
- As smooth, UV resistant, waterproof, crack-bridging coating for concrete, cementitious screed substrates and tiles.
- For light to medium mechanical exposure
Advantages
- Highly elastic
- Crack-bridging properties
- Waterproof
- Good UV yellowing resistance
- Weather resistant
- Abrasion resistant under normal traffic conditions
- Slip resistant surfaces are possible
Packaging
Please refer to the individual Product Data Sheets
Colour
Multiple colour shades available
Appearance
Smooth finish
System Details
APPROVALS / STANDARDS
- Synthetic resin screed material according to EN13813:2002, Declaration of Performance and provided with the CE marking
- Coating for surface protection of concrete according to EN 1504-2:2004, Declaration of Performance and provided with the CE marking
- Fire classification reports No. WF 389846 from EXOVA Warringtonfire
- Accelerated Abrasion Resistance test in accordance with BS 8204-2:2003 + A2:2011
- Indentation test after constant loading according to EN 433
- Determination of Static Crack Bridging Ability according to EN 1062-7, report number 25545, test performed at Vinci Technology Center, United Kingdom
- Resistance to Urine of Polyurethane Coating Systemsin accordance with the principles outlined in EN 2812-3:2012-10 Determination of resistance to liquids Part 3: Method using a absorbent medium.
- Determination of Odour concentration according to EN 13725:2003, test performed at Odournet, Report – No.: 456-2014-00
- Determination of Hedonic Tone according to VDI 3882 and ISO 16000-28 (D), test performed at Odournet, Report – No.: 456-2014-00
System Structure
Sikafloor® MonoFlex MB-23
| Layer | Product |
| 1. Primer | Sikafloor®-151 or Sika® Concrete Primer or Sika® Bonding Primer |
| 2. Base Coat | Sikafloor® -420 |
Composition
Polyurethane
Nominal Thickness
~1–2 mm
Shelf Life
Please refer to the individual Product Data Sheets
Storage Conditions
Please refer to the individual Product Data Sheets
Abrasion Resistance
| ~23 mg (CS10/1000/1000) | (BS EN ISO 7784-2:2006) |
Resistance to Impact
IR > 4 Nm | (EN 13813) |
Indentation
<0.1 mm | (EN 433) |
Tensile Adhesion Strength
B2.0 | (EN 13813) |
Crack Bridging Ability
| Value | Class |
| 900 µ | A3 |
Reaction to Fire
| Cfl-s1 | (EN 13501) |
Chemical Resistance
Sikafloor® MonoFlex MB-23 is resistant to many chemicals. Please refer to the chemical resistance of Sikafloor®-420.
Microbiological Resistance
| Synthetic Urine (Uric acid) | No Change; No Change 0 (S0)0 |
Permeability to Water Vapour
Class III | (EN 1062-6) |
Capillary Absorption
| w=0.004 kg (m2x h0.5) | (EN 1062-3) |
Permeability to CO2
| Sd=61 m | (EN 1062-6) |
Application
Product Temperature
+5 °C min. / +30 °C max.
Ambient Air Temperature
+5 °C min. / +30 °C max.
Relative Air Humidity
35 % min. / 80 % max.
Dew Point
The substrate and uncured floor must be at least 3 °C above dew point to reduce the risk of condensation or other disturbance of the surface on the floor finish
Substrate Temperature
+5 °C min. / +30 °C max.
Substrate Moisture Content
Sikafloor® MonoFlex MB-23 can be installed on substrates with moisture content of max. 4 % (checked by Tramex). The substrate needs to be visibly dry and have adequate pull-off strength min 1.5 N/mm2. Check rising moisture.
Applied Product Ready for Use
| Temperature (r.h. 50%) | Rain resistant | Foot traffic | Full cure |
| +10 °C | ~15 hours | ~1–2 days* | ~7–14 days* |
| +20 °C | ~5 hours | ~24 hours* | ~5–9 days* |
| +30 °C | ~3 hours | ~18 hours* | ~3–5 days* |
*Strongly influenced by layer thickness
Note: Times are approximate and will be affected by changing ambient conditions
Consumption
| Layer | Product | Consumption |
| Primer | Sikafloor®-151 or Sika® Bonding Primer | ~0.5 kg/m2/layer or ~0.1 kg/m2/layer ~0.1 kg/m2/layer |
| Base Coat | Sikafloor® -420 (+ Optional Sika®-PU Accelerator) | ~0.8–1.3 kg/m2/layer |
Consumptions are theoretical and do not include any wastage or additional materials needed due to porosity, substrate profile etc.
Sika®-PU Accelerator can be added to Sikafloor®-420, one 60g sachet per 5 Litres of Sikafloor®-420.
CLEANING
Please refer to the Sikafloor® Cleaning Regime