Sikafloor® MultiDur EB-31 ECF
Slip-resistant unicolour electrostatically conductive epoxy flooring system with high chemical resistance
Sikafloor® MultiDur EB-31 ECF is a slip-resistant, coloured epoxy flooring system.
- Electrostatically conductive
- Impermeable to liquids
- Good resistance to abrasion
- Very good mechanical resistance
- Very good resistance to specific chemicals
Usage
The System is used for:- Bunding areas
- Chemical and processing facilities
- Automotive facilities
Advantages
- Electrostatically conductive
- Impermeable to liquids
- Good resistance to abrasion
- Very good mechanical resistance
- Very good resistance to specific chemicals
Colour
Cured system colour | Available in various colour shades. |
Appearance
Slip resistant, semi-gloss finish
System Details
System Structure
| Layer | Product | |
| 1. | Primer | Sikafloor®-150 Sikafloor®-151 Contact Sika NZ for information on choosing the right primer for your project. |
| 2. | Conductive primer & Earthing connection | Sikafloor®-220 W Conductive + Sikafloor® Conductive Set |
| 3. | Conductive base coat & broadcast | Sikafloor®-381 ECF (unfilled), broadcast to excess with silicone carbide 0.5-1.0 mm. |
| 4. | Top coat | Sikafloor®-381 + 5 % by weight Sika® Thinner C |
IMPORTANT
System structure
The system structure as described in the table must not be changed.
Composition
Epoxy
Nominal thickness
2 mm to 2.5 mm
Tensile Adhesion Strength
| ≥ 1.5 MPa | (EN 1542) |
Electrostatic Behaviour
Resistance to ground | RG < 109 Ω |
Typical average resistance to ground | RG < 105–106 Ω |
ECF MEASUREMENT CONDITIONS AND SPECIFICATIONS
All measurement values for the system stated in the System Data Sheet (except those referring to proof statements) were measured using the following equipment and ambient conditions:
Condition or Equipment | Specification |
Size of ESD-footwear | 42 (EU) (UK: 8; US: 8,5) |
Test person weight | 90 kg |
Ambient conditions | +23 °C and 50 % r.h. |
Measuring device for measuring resistance to ground | Metriso 2000 or 3000 (Warmbier) or comparable |
Surface resistance probe | Carbon Rubber electrode. Weight: 2,50 kg |
Rubber pad hardness | Shore A (60 ±10) |
Measurement reults during testing
Note: If values are lower or higher than required, additional measurements have to be carried out about 30 cm around the point where the faulty readings are located. If the re-measured values are in accordance with the requirements, the total area is acceptable.
Application
Ambient Air Temperature
Maximum | +30 °C |
Minimum | +10 °C |
Relative Air Humidity
Maximum | 80 % r.h. |
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
| Maximum | +30 °C |
| Minimum | +10 °C |
Substrate Moisture Content
≤ 4% pbw using Sikafloor®-150
≤ 6% pbw using Sikafloor®-151
Test method: Sika®-Tramex meter, CM - measurement or Oven-dry-method.
No rising moisture according to ASTM (Polyethylene-sheet). Osmosis caused by rising moisture or incorrect primer application is not
covered by the product warranty.
Consumption
| Layer | Product | Consumption |
| Primer | Sikafloor®-150 Sikafloor®-151 | 1-2 × 0.3–0.5 kg/m² |
| Levelling (if required) | Sikafloor®-150 Sikafloor®-151 | Refer to the individual Product Data Sheet |
| Earthing connection | Sikafloor® Conductive Set | 1 earthing point per approx. 200 m², min. 2 per room |
| Conductive primer | Sikafloor®-220 W Conductive | 1 × 0.08–0.10 kg/m² |
| Conductive base coat and broadcast | Sikafloor®-381 ECF (unfilled) Broadcast to excess with silicone carbide 0.5-1.0 mm. | 1 × 1.6 kg/m² 4.0-6.0 kg/m² |
| Top coat | Sikafloor®-381 + 5 % by weight Sika® Thinner C | 1 × 0.75-0.85 kg/m² |
Note: Consumption data is theoretical and does not allow for any additional material due to surface porosity, surface profile, variations in level, wastage or any other variations. Apply product to a test area to calculate the exact consumption for the specific substrate conditions and proposed application equipment.
APPLICATION
ESD CONDUCTIVITY MEASUREMENTS
Recommended number of conductivity measurements is specified in the following table:
| Ready applied area | Number of measurements |
| < 10 m² | 6 |
| ≥ 10 m² and < 100 m² | 10 to 20 |
| ≥ 100 m² and < 1000 m² | 50 |
| ≥ 1000 m² and < 5000 m² | 100 |
If the measurements yield values that are outside of the agreed specification, follow these steps:
- Carry out one additional measurement within a radius of approximately 30 cm around the original measuring point.
If the value of the new measurement meets the agreed specification, the original measurement can be disregarded. If the value of the new measurement does not meet the agreed specification, repeat the measurement described above until the fulfilment of the requirements have been verified. If the requirements cannot be verified, contact Sika Technical Services.
INSTALLATION OF EARTHING POINTS
Refer to Sika Method Statement: Sika Method Statement — Sikafloor® mixing and application
Number of earthing connections per room: Minimum of 2 earthing connections. The optimum number of earthing connections depends on the local conditions and must be specified on drawings or other contract documentation.