Sikafloor® MultiDur ET-31 ECF/V
Sikafloor® MultiDur ET-31 ECF/V is a two part, textured, electrostatic conductive, coloured epoxy coating system with very high chemical resistance. "Total solid epoxy composition acc. to the test method Deutsche Bauchemie e.V. (German Association for construction chemicals)".
- Very high chemical resistance
- High mechanical resistance
- Impervious to liquids
- Abrasion resistant
- Electrostatically conductive
- Good sag resistance
System Structure
Usage
It is used as:- Chemically highly resistant epoxy coating for vertical surfaces in concrete and screed surfaces in bund areas for the protection against water contaminating liquids (contact Sika technical service for specific information)
- Electrostatically conductive epoxy coating for vertical surfaces subject to chemical and mechanical exposure in production and storage facilities
Advantages
- Very high chemical resistance
- High mechanical resistance
- Impervious to liquids
- Abrasion resistant
- Electrostatically conductive
- Good sag resistance
Packaging
Please refer to individual Product Data Sheet.
Colour
Almost unlimited choice of colour shades.
Due to the nature of carbon fibres providing the conductivity, it is not possible to achieve exact colour matching. With very bright colours (such as yellow and orange), this effect is increased. Under direct sun light there may be some variations and colour variation, this has no influence on the function and performance of the coating.
Appearance
Orange peel textured, semi-gloss
System Details
System Structure
| 1. Primer | Sikafloor®-150/-151 |
| 2. Conductive undercoat + Earthing connection | Sikafloor®-381 ECF filled with 2.5 - 4.0 % Extender T + Sika® Earthing Kit |
| 3. Conductive primer | Sikafloor®-220 W Conductive |
| 4. Final conductive coating | Sikafloor®-381 ECF filled with 2.5 - 4.0 % Extender T |
The system configurations as described must be fully complied with and may not be changed.
Composition
Epoxy
Nominal Thickness
~ 1.5 mm
Shelf Life
Please refer to individual Product Data Sheet.
Storage Conditions
Please refer to individual Product Data Sheet.
Electrostatic Behaviour
Resistance to ground1 | Rg < 109 Ω |
Typical average resistance to ground2 | Rg < 106 Ω |
1 In accordance with IEC 61340-5-1 and ANSI/ESD S20.20.
2 Readings may vary, depending on ambient conditions (i.e. temperature, humidity) and measurement equipment.
Application
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 % pbw moisture content.
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®-381 ECF on Sikafloor®-150/151 allow:
| Substrate temperature | Minimum | Maximum |
| +10 °C | 24 hours | 4 days |
| +20 °C | 12 hours | 2 days |
| +30 °C | 8 hours | 1 days |
Before applying Sikafloor®-220 W Conductive on Sikafloor®-381 ECF allow:
| Substrate temperature | Minimum | Maximum |
| +10 °C | 48 hours | 3 days |
| +20 °C | 24 hours | 2 days |
| +30 °C | 12 hours | 1 days |
Before applying Sikafloor®-381 ECF on Sikafloor®-220 W Conductive allow:
| Substrate temperature | Minimum | Maximum |
| +10 °C | 26 hours | 7 days |
| +20 °C | 17 hours | 5 days |
| +30 °C | 12 hours | 4 days |
Times are approximate and will be affected by changing ambient conditions particularly temperature and relative humidity.
Applied Product Ready for Use
Temperature | Foot traffic | Light traffic | Full cure |
+10 °C | ~ 24 hours | ~ 3 days | ~ 10 days |
+20 °C | ~ 18 hours | ~ 2 days | ~ 7 days |
+30 °C | ~ 12 hours | ~ 1 days | ~ 5 days |
Note: Times are approximate and will be affected by changing ambient conditions
Consumption
| Coating | Product | Consumption |
| Primer | Sikafloor®-150/-151 | 1-2 x ~ 0.3 - 0.5 kg/m² |
| Scratch coat (if required) | Sikafloor®-150/-151 | Refer to PDS of Sikafloor®-150/-151 |
| Conductive undercoat | Sikafloor®-381 ECF filled with 2.5 - 4.0 % Extender T | 1 x 1.25 kg/m² |
| Earthing connection | Sika® Earthing Kit | 1 earthing point per approx. 200 -300 m², min. 2 per room. |
| Conductive primer | Sikafloor®-220 W Conductive | 1 x 0.08 - 0.10 kg/m² |
| Final conductive coating | Sikafloor®-381 ECF filled with 2.5 - 4.0 % Extender T | 1 x 1.25 kg/m² |
These figures are theoretical and do not allow for any additional material due to surface porosity, surface profile, variations in level or wastage etc.