Sikafloor® MultiDur ES-21
Smooth unicolour epoxy floor covering
Sikafloor® MultiDur ES-21 is a smooth coloured rigid system for flooring applications
- Good chemical and mechanical resistance
- Good wear and abrassion resistance
- Easy application
- Liquid proof
- Gloss finish
- Easy cleanability
- Colour options
System Structure
Usage
Self-smoothing system for concrete and cement screeds with normal up to medium heavy wear e.g. storage and assembly halls, maintenance workshops, garages, loading ramps etc.Advantages
- Good chemical and mechanical resistance
- Good wear and abrassion resistance
- Easy application
- Liquid proof
- Gloss finish
- Easy cleanability
- Colour options
Packaging
Please refer to the individual Product Data Sheets
Colour
Almost unlimited choice of colour shades
Appearance
Smooth gloss finish
System Details
APPROVALS / STANDARDS
- Particle emission certificate Sikafloor-264 N CSM Statement of Qualification – ISO 14644-1, class 3– Report No. SI 1709-952.
- Outgassing emission certificate Sikafloor-264 N: CSM Statement of Qualification – ISO 14644-8, class 6,5 - Report No. SI 1709-952.
- Fire classification in accordance with EN 13501-1, Report-No KB-Hoch-170625, Hoch Fladungen, Germany, May 2017.
- Fire classification in accordance with EN 13501-1, Report-No KB-Hoch-170619, Hoch Fladungen, Germany, May 2017.
- Certificate of conformity for indirect food contact, Fresenius Institute,- Report No. 3419034-01, Germany, November 2017
System Structure
| Layer | Product |
| 1. Primer | Sikafloor®-150 /-151 |
| 2. Wearing coat | Sikafloor®-264 N |
Composition
Epoxy
Nominal Thickness
~1.5–3.0 mm
Shelf Life
Please refer to the individual Product Data Sheets
Storage Conditions
Please refer to the individual Product Data Sheets
Shore D Hardness
| ~76 (7 days / +23 °C) | (DIN 53 505) |
Abrasion Resistance
| ~35 mg (CS 10/1000/1000) (7 days / +23 °C) | (DIN 53 109 Taber Abraser Test) |
Resistance to Impact
| ~10 Nm (14 days / +23 °C / 50 %) | (ISO 6272) |
Compressive Strength
| ~50 N/mm2 (28 days / +23 °C, Resin filled 1:0.9 with F34) | (EN 196-1) |
Tensile Strength
| ~20 N/mm2 (28 days / +23 °C, Resin filled 1:0.9 with F34) | (EN 196-1) |
Tensile Adhesion Strength
| > 1.5 N/mm² (failure in concrete) | (ISO 4624) |
Reaction to Fire
| Bfl-S1 | (DIN EN 13501-1) |
Chemical Resistance
Resistant to many chemicals. Contact Sika technical service for specific advice.
Thermal Resistance
| Exposure* | Dry heat |
| Permanent | +50 °C |
| Short-term max. 7 d | +80 °C |
| Short-term max. 12 h | +100 °C |
Short-term moist/wet heat* up to +80 °C where exposure is only occasional
(steam cleaning etc.)
*No simultaneous chemical and mechanical exposure.
Application
Product Temperature
Please refer to the individual Product Data Sheet
Ambient Air Temperature
+10 °C min. / +30 °C max.
Relative Air Humidity
80 % r.h. max.
Dew Point
Beware of condensation!
The substrate and uncured floor must be at least 3 °C above dew point to reduce the risk of condensation or blooming on the floor finish.
Substrate Temperature
+10 °C min. / +30 °C max.
Substrate Moisture Content
≤ 4% parts by weight
Test method: Sika®-Tramex meter, CM - measurement or Oven-dry-method.
No rising moisture according to ASTM (Polyethylene-sheet).
Waiting Time / Overcoating
Before applying Sikafloor®-264 N on Sikafloor®-150/-151 allow:
| Substrate Temperature | Minimum | Maximum |
| +10 °C | 24 hours | 3 days |
| +20 °C | 12 hours | 2 days |
| +30 °C | 8 hours | 1 day |
Applied Product Ready for Use
| Temperature | Foot Traffic | Light Traffic | Full Cure |
| +10 °C | ~72 hours | ~6 days | ~10 days |
| +20 °C | ~24 hours | ~4 days | ~7 days |
| +30 °C | ~18 hours | ~2 days | ~5 days |
Consumption
Sikafloor® MultiDur ES-21 system ( ~ 1.5–3.0 mm)
| Coating System | Product | Consumption |
| Primer | 1 × Sikafloor®-150/-151 | ~ 0.3–0.5 kg/m² |
| Wearing coat | 1 pbw Sikafloor®-264 N filled with up to 1 pbw quartz sand (0.06–0.3 mm) depending on the temperature. | Maximum 1.9 kg/m² /mm |
CLEANING
Refer to the Information Manual Sikafloor®‐ Cleaning Regime