Product Data Sheet Show all documents

Sikafloor® MultiFlex PS-35 ESD

Smooth, low VOC, polyurethane ESD flooring system

Sikafloor® MultiFlex PS-35 ESD is a polyurethane, low VOC ESD flooring system. The system dissipates electrostatic charges (ESD) and protects personnel and sensitive equipment in electrostatic protected areas (EPA).

  • Easy to apply
  • Good resistance to UV exposure
  • Good yellowing resistance
  • Easy to refurbish, topcoat can be recoated
  • Low maintenance
  • Good resistance to specific chemicals
  • Easy to refurbish, topcoat can be recoated
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Product Data Sheet Show all documents

System Structure

1

Primer (Alternative)

Sikafloor®-151

Multipurpose epoxy primer and binder for levelling screeds and mortars

2

Conductive Primer

Sikafloor®-220 W Conductive

2-PART, ELECTROSTATIC CONDUCTIVE EPOXY PRIMER

3

Conductive Body Coat (Sikafloor® BC 375 NAS)

Sikafloor® BC 375 NAS
(former MTop BC 375NAS)

Two-part, pigmented, anti-static, solvent-free, low emission, self-smoothing PU coating with crack bridging properties

4

ESD Roller Coat

Sikafloor®-305 W ESD

2-part, PUR, waterborne, matt, coloured ESD-roller coat

Usage

The System is used in industrial buildings such as:
  • Electronic facilities and data centres
  • Microbiology and microchemistry production areas
  • Automotive facilities
Please note: The System may only be used for interior applications.  

Advantages

  • Easy to apply
  • Good resistance to UV exposure
  • Good yellowing resistance
  • Easy to refurbish, topcoat can be recoated
  • Low maintenance
  • Good resistance to specific chemicals
  • Easy to refurbish, topcoat can be recoated

Colour

Available in various colour shades.

Appearance

Smooth matt finish

System Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

Reaction to fire EN 13501-1, Sikafloor® MultiFlex PS-35 ESD, Ghent, Test report No. 24-0829-01
System information

System Structure

Layer

Product

1. Primer

Sikafloor®-150 Plus, or

Sikafloor®-151

2. Conductive primer + Earthing connection

Sikafloor®-220 W Conductive + Sikafloor® Conductive Set

3. Conductive base coat

Sikafloor® BC 375 N AS

4. ESD Topcoat

Sikafloor®-305 W ESD

System structure: The system structure described in the table must not be changed. Contact Sika Technical Service for information on choosing the right primer for your project. 

Composition

Combination of epoxy and polyurethane

Nominal thickness

~1.5–2.0 mm
Technical Information

Tensile adhesion strength

≥ 1.5 MPa

(EN 1542)

Electrostatic Behaviour

Resistance to ground

RG < 109 Ω

(IEC 61340-4-1)

Typical average resistance to ground

RG < 105–106 Ω

(EN 1081)

Body voltage generation

< 100 V

(IEC 61340-4-5)

System resistanceRG < 109 Ω(IEC 61340-4-5)

 

ESD 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/50 %

Measuring device for measuring resistance to ground

Metriso 2000 or 3000 (Warmbier) or comparable

Surface resistance probe

Carbon Rubber electrode. Weight: 2,50 kgShore A (60 ±10)

Rubber pad hardness

Shore A (60 ±10)

Measuring device for measuring body voltage generation

Walking Test Kit WT 5000 (Warmbier) or comparable

 

ESD footwear requirements

The ESD shoes used in the EPA must have a resistance of < 5 MOhm according to IEC 61340-4-3 at climate class 1 (12 % relative humidity / +23 °C). In order to achieve charges of < 30 volts of human body charge during the walking test (at 12 % relative humidity / +23 °C), we recommend using the following ESD shoes: Weeger ESD clog, art. 48512-30, www.schuh-weeger.de.

Note: Measurement results can be affected by ESD clothing, ambient conditions, measurement equipment, cleanliness of the floor and the test personnel.

 

Application

Application Information

Ambient Air Temperature

Maximum

+30 °C

Minimum

+10 °C

Relative Air Humidity

Maximum

75% r.h.

Dew Point

Refer to the individual Product Data Sheet.

Substrate Temperature

Maximum

+30 °C

Minimum

+10 °C

Substrate Moisture Content

Refer to the individual Product Data Sheet.

Waiting Time / Overcoating

For the waiting time to overcoating of the primer, refer to the individual Product Data Sheet.

Before applying Sikafloor® BC 375 N AS on Sikafloor®-220 W Conductive, allow:

Temperature

Minimum

Maximum

+10 °C

~26 hours

~7 days

+20 °C

~17 hours

~5 days

+30 °C

~12 hours

~4 days

Before applying Sikafloor®-305 W ESD on Sikafloor® BC 375 N AS allow:

Temperature

Minimum

Maximum

+10 °C

~24 hours

~3 days

+20 °C

~16 hours

~48 hours

+30 °C

~8 hours

~36 hours

Before applying Sikafloor®-305 W ESD on Sikafloor®-305 W ESD allow:

Temperature

Minimum

Maximum

+10 °C

~48 hours

~10 days

+20 °C

~24 hours

~8 days

+30 °C

~16 hours

~7 days

Note: 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

~48 hours

~5 days

~10 days

+20 °C

~24 hours

~3 days

~8 days

+30 °C

~16 hours

~2 days

~7 days

Note: Times apply when the last layer of the system has been applied. Times are affected by changing ambient conditions, particularly temperature and relative humidity.
Application consumption

Consumption

Layer

Product

Consumption

Primer

Sikafloor®-150 Plus, or

Sikafloor®-151

1-2 × 0.3–0.5 kg/m²

Levelling
(if required)

Sikafloor®-150 Plus, or

Sikafloor®-151

Refer to the individual Product Data Sheet.

Earthing connection

Sikafloor® Conductive Set

1 Earthing Point per approx. 200–300 m², min. 2 per room

Conductive primer

Sikafloor®-220 W Conductive

1 × 0.08–0.10 kg/m²

Conductive base coat

Sikafloor® BC 375 N AS

1 × 2.0-2.5 kg/m²

ESD Topcoat

Sikafloor®-305 W ESD

1–2 × 0.18-0.2 kg/m²/layer diluted with 10% of water

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 the product to a test area to calculate the exact consumption for the specific substrate conditions and proposed application equipment.
Application steps

APPLICATION

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.

 

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 m²50
≥ 1000 m² and < 5000 m²

100

If the measurements yield values that are outside of the agreed specification, follow these steps:

1. 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.

 

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