PÜRKAY SL 25 Conductive Epoxy Self Levelling

PÜRKAY SL 25 Conductive Epoxy Self Leveling is an electrically conductive epoxy-based floor covering material with a resistance between 1x10 and 1x 10E5 Ohm/m2.

Characteristics and Properties 

PÜRKAY SL 25 Conductive Epoxy Self Levelling is a solvent free, electric conductive two-pack epoxy self leveling coating for industrial flooring. Has excellent adhesion to surface when used with appropriate concrete primer (such as PÜRKAY Epoxy Concrete Primer). It has high resistance to chemicals, high load bearing capability and excellent property of electric conductivity. The electric conductive epoxy flooring dissipates static electrical charges from surfaces to ground..

Typical use     

Environments where the harmful effects of electrostatic discharge cannot be tolerated and where equipment and machinery are very sensitive to static electricity, places where very sensitive electronic equipments are produced as well as data processing centers, hospital departments with flammable anesthesia, very sensitive electronic component production areas, clean rooms with very sensitive equipment, sensitive telecommunications installation areas, areas where medical diagnosis instruments are located, places where nitroglycerin and similar explosives are produced and stored.



Colour: Most RAL colours
Mixing ratio : A/B : 100/20 (by weight)
Pot life: 35 ± 5 min. /23˚C, 200 g.  DIN 16945
Consumption: 1.40 kg for 1 mm (Recommended thickness 2 mm)
Curing Time : Depending on relative humidity and temperature, 10- 12 hours (complete cure in 7 days)
Density : 1,40 ± 0,05 gr/cm³ 20ºC TS EN ISO 2811-1
VOC: A+B : < 240 g/L
EU Regulation 2004/42 : According to the EU-Directive 2004/42 the maximum allowed content of VOC is 550/500 g/L (Limits 2007/2010) for the ready to use product.
TOC: Mixture:  %46-50
Shore (D) : 85 ± 5 ASTM D 2240 DIN 53505
Conductivity: 1×10 < ohm  ≤ 1x10E5 (DIN 51953)
Heat Resistance: humid conditions 80 ºC, dry conditions 120 ºC
Solid Material (%) : 100 % by weight
100 % by volume
Storage : Can be stored in original container, for 1 year under 35°C and protected from freezing
Packaging :  A/B = 20+4 kg set

Mechanical Resistance

Compressive Strength (N/mm²) 40 ~ 45 DIN 53504 TS 1967
Tensile Strength (N/mm²) 15 ~ 20 DIN 53504 TS 1967
Elongation at break (%) 0,8 – 1,0 DIN 53504 TS 1967
Flexural strength (N/mm²) 10 ~ 12 DIN 52371 TS 985
E-Module (N/mm²) 18 ~ 20 DIN 52371 TS 985
Abrasion Resistance (mg) ~ 30 Taber, ASTM D 4060-95

Technical hints   

The mixed material must be used within the pot-life, otherwise irreversible gelation of the product occurs. All equipment must be cleaned immediately after use. Use of protective rubber gloves is recommended.


The substrates to be applied must be free of loose particles, oil, grease and other impurities. The substrate must be primed with PÜRKAY Concrete Primer. Defects must be repaired with epoxy filler. Special attention should be paid to the moisture content of the substrate to ensure that there are no other adhesion problems or undesirable side-reactions. For successful results, concrete substrates should have a moisture content of <5% and application should be carried out at a substrate temperature equivalent to the prevailing dew point plus 3°C. 

Self-adhering copper tapes are placed on to the primed (or intermediate coat applied) surface, (In case surface is not very level PÜRKAY Epoxy Intermediate Coat should be applied. Copper tapes should be in contact with each other to ensure successful electric contact and should be connected to the ground of the building.

In case PÜRKAY Conductive Epoxy Flooring System is going to be applied in several layers, the re-coat period between layers should be within 12-24 hours. In places where the 24 hour period is exceeded, the surface should be sanded (emery paper or scotch brite).


PÜRKAY SL 24 Epoxy ESD Self Levelling comes in two separate cans. The contents of the hardener (B) should be poured fully in to the can of main component (A). The mixing of the two components can be done with the help of an electrical mixer, such as a stirrer attached to a power drill. Application of the material can be achieved by help of a toothed trowel. After the coating is applied on to the floor, in order to release the air bubbles and help levelling, spiked roller should be travelled on the fresh coating.  The applied surface must be protected from water for at least 6-8 hours.


Avoid skin contact with Hardener, all soiled equipment and such should be cleaned immediately. Do not induce vomiting, seek for medical advice. Use protective goggles and gloves.


Information contained herein is based on our knowledge and experience and does not release the consumer from conducting his own comprehensive tests. A legally binding guarantee, also regarding possible rights of third parties, is expressly denied. Our products are sold according to our General Terms of Sales and Delivery.  

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