Sikafloor®-262 AS N
2-part epoxy smooth electrostatic conductive floor covering
Sikafloor®-262 AS N is a two part, self-smoothing, coloured epoxy resin coating.
- Electrostatically conductive
- Good resistance to chemicals
- Good mechanical resistance
- Easy to clean and maintain
- Economical
- Impermeable to liquids
- Semi-gloss finish
Usage
The Product is used as a:- Smooth electrostatically conductive floor covering
- Automotive facilities
- Electronic facilities and data centres
- Pharmaceutical facilities
- Storage areas
- Warehouses
- CNC machinery
- Computer rooms
- Aircraft hangars
- Battery-charging rooms
- Areas with a high explosion risk
Advantages
- Electrostatically conductive
- Good resistance to chemicals
- Good mechanical resistance
- Easy to clean and maintain
- Economical
- Impermeable to liquids
- Semi-gloss finish
Packaging
| Container Part A | 21 kg |
| Container Part B | 4 kg |
| Container Part A + Part B | 25 kg |
Colour
IMPORTANT
Ensuring consistent colour matching
For consistent colour matching, make sure the Product in each area is applied from the same control batch numbers.
Part A | coloured liquid |
Part B | transparent liquid |
Available in a wide range of colours. Please contact Sika customer service for availability.
Exact colour matching
Note: 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.
Note: When the Product is exposed to direct sunlight, there may be some discolouration and colour variation. This has no influence on the function and performance of the Product.
Product Details
ENVIRONMENTAL INFORMATION
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Environmental Product Declaration (EPD) in accordance with EN 15804. EPD independently verified by Institut für Bauen und Umwelt e.V. (IBU)
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Conforms with LEED v4 EQ credit: Low-emitting materials
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Conforms with LEED v4 MR credit: Building product disclosure and optimization — Environmental Product Declarations (option 1)
APPROVALS / STANDARDS
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CE marking and declaration of performance based on EN 13813:2002 Screed material and floor screeds — Screed material — Properties and requirements — Synthetic resin screed material
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CE marking and declaration of performance based on EN 1504-2:2004 Products and systems for the protection and repair of concrete structures — Surface protection systems for concrete — Coating
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Fire testing EN 13501-1, Sikafloor®-262 AS N, MPA, Report No. 2007-B-0181/17
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Coating Compatibility AA-P 128, Sikafloor®, Polymer Institut, Report No. P 5541
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Material testing PV 3.10.7, Sikafloor®-262 AS N, HQM, Report No. 14-04-14201871-
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Particle Test ISO 14644-1, Sikafloor®-262 AS N, CSM Fraunhofer, Certificate No.
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Outgassing emissions VDI 2083-17, Sikafloor®-262 AS N, CSM Fraunhofer, Certifica
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Biological Resistance ISO 846, Sikafloor®-262 AS N, No. SI 1412-740
Chemical base
Epoxy
Shelf life
12 months from date of production
Storage conditions
The Product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C and +30 °C. Always refer to packaging.
Refer to the current Safety Data Sheet for information on safe handling and storage.
Density
| Resin | Density at +23 °C |
| Part A | 1.69 kg/L |
| Part B | 1.03 kg/L |
| Mixed resin unfilled | 1.53 kg/L |
| Mixed resin filled 1 : 0.3 | 1.69 kg/L |
Solid content by weight
~97 %
Solid content by volume
~97 %
Shore D hardness
Cured 3 days at +23 °C | ~77 |
Abrasion resistance
| ~100 mg, resin filled 1 : 0.3 with F34 sand (CS10 /1000 g /1000 cycles) (after 7 days at +23 °C) | (EN ISO 5470-1) |
Compressive strength
Cured 28 days at +23 °C (filled 1:0.3 with F34 sand) | ~80 MPa |
Flexural strength
Cured 28 days at +23 °C (filled 1:0.3 with F34 sand) | ~40 MPa |
Tensile adhesion strength
| > 1.5 N/mm2 (failure in concrete) | (EN 1542) |
Electrostatic behaviour
| Resistance to ground | Rg < 109 Ω |
| Typical average resistance to ground | Rg < 106 Ω |
This product fulfils the requirements of ATEX 153.
Readings may vary, depending on ambient conditions (i.e. temperature, humidity) and measurement equipment.
Heat resistance
IMPORTANT
No simultaneous mechanical and chemical strain
While the product is exposed to temperatures up to +60 °C, do not also subject it to chemical and/or mechanical strain, as it may cause damage to the product.
Exposure | Dry heat |
Short-term max. 7 days | +60 °C |
Chemical resistance
Laboratory defined resistance to many individual chemicals. Before proceeding, contact Sika Technical Services for specific information.
Application
Mixing ratio
Part A : Part B (by weight) | 84 : 16 (by weight) |
Product temperature
Maximum | +30 °C |
Minimum | +10 °C |
Ambient air temperature
Maximum | +30 °C |
Minimum | +10 °C |
Relative air humidity
80 % r.h. max.
Dew point
Beware of condensation. The substrate and uncured applied product must be at least +3 °C above dew point to reduce the risk of condensation or blooming on the surface of the applied product. Low temperatures and high humidity conditions increase the probability of blooming.
Substrate temperature
Maximum | +30 °C |
Minimum | +10 °C |
Substrate moisture content
| Substrate | Method | Moisture content |
| Cementitious substrates | Sika® Tramex moisture metre | ≤ 6 % |
| Cementitious substrates | Calcium carbide method (CM-method) | ≤ 4 % |
No rising moisture (ASTM D4263, polyethylene sheet)
IMPORTANT
Temporary moisture barrier
If the substrate moisture content measured with the CM-method is > 4% by weight, apply a temporary moisture barrier consisting of Sikafloor® EpoCem®.
- Contact Sika technical services for more information.
Pot life
Temperature | Time |
+30 °C | ~15 minutes |
+20 °C | ~25 minutes |
+10 °C | ~40 minutes |
Applied product ready for use
Temperature | Foot traffic | Light traffic | Full cure |
+30 °C | ~16 hours | ~2 days | ~5 days |
+20 °C | ~24 hours | ~3 days | ~7 days |
+10 °C | ~30 hours | ~5 days | ~10 days |
Note: Times are approximate and will be affected by changing ambient conditions, particularly temperature and relative humidity.
Consumption
| Coating system | Product | Consumption |
| Self-smoothing wearing course for high aesthetical demands (Film thickness ~ 1.5 mm) | Sikafloor®-262 AS N filled with Sikafloor® Filler 1 | Maximum 2.5 kg/m2 Binder + Sikafloor® Filler 1 Depending on the temperature the filling grade varies from: 1 : 0.1 pbw (2.3 + 0.2 kg/m2) to 1 : 0.2 pbw (2.1 + 0.4 kg/m2) |
| Self-smoothing wearing course (Film thickness ~ 1.5 mm) | Sikafloor®-262 AS N filled with quartz sand F34 | Maximum 2.5 kg/m2 Binder + quartz sand F34 Depending on the temperature the filling grade varies from: 1 : 0.1 pbw (2.3 + 0.2 kg/m2) to 1 : 0.3 pbw (1.9 + 0.6 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.
Excessive layer thickness
Note: Applying the Product in excess of the stated thickness causes reduced conductivity.
EQUIPMENT
Select the most appropriate equipment required for the project:
MIXING
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Electric single paddle mixer (300-400 rpm)
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Electric double paddle mixer (> 700 W, 300-400 rpm)
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Scraper
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Clean mixing containers
APPLICATION
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Mixed material carrier
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Large-Surface Scraper No. 656, Toothed blades No. 25 (www.polyplan.com)
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Steel spike rollers
SUBSTRATE QUALITY
IMPORTANT
Incorrect treatment of cracks
The incorrect assessment and treatment of cracks may lead to a reduced service life and reflective cracking.
TREATMENT OF JOINTS AND CRACKS
Construction joints and existing static surface cracks in substrate require pre-treating before full layer application. Use Sikadur® or Sikafloor® resins.
SUBSTRATE CONDITION
Cementitious substrates (concrete / screed) must be structurally sound and of sufficient compressive strength (minimum 25 N/mm2) with a minimum tensile strength of 1.5 N/mm2.
Substrates must be clean, dry and free of all contaminants such as dirt, oil, grease, coatings, laitance, surface treatments and loose friable material.
MIXING
- Mix Part A (resin) for ~10 seconds with a single paddle mixer (300–400 rpm).
- Add Part B (hardener) to Part A. Switch to an electric double paddle mixer (300–400 rpm, > 700 W).
- While mixing Parts A + B, gradually add the required filler or aggregates. Note: Avoid over mixing to minimise air entrainment.
- Mix for a further 2 minutes until a uniform mix is achieved.
- To ensure thorough mixing pour materials into a clean container and mix again for at least 1 minute to achieve a smooth consistent mix.
- During the final mixing stage, scrape down the sides and bottom of the mixing container with a straight edge trowel or spatula.
APPLICATION
IMPORTANT
Temporary heating
If temporary heating is required, do not use gas, oil, paraffin or other fossil fuel heaters, these produce large quantities of both CO2 and H2O water vapour, which may adversely affect the finish. For heating use only electric powered warm air blower systems.
IMPORTANT
Performing pre-trials
Pre-trials/mock-up applications must be performed and procedures agreed with all parties before full project application.
IMPORTANT
Indentations
Under certain conditions, underfloor heating or high ambient temperatures combined with high point loading may lead to indentations in the resin.
IMPORTANT
Protect from moisture
After application, protect the Product from damp, condensation and direct water contact for at least 24 hours.
Preconditions
IMPORTANT Do not blind the primer. The conductive priming coat has been applied and has dried tack-free all over.
- Pour the mixed Product onto the surface. Note: The consumption is specified in Application Information.
- Apply the Product evenly over the surface with a serrated trowel.
- Turn the serrated trowel and smooth the surface for an aesthetically higher grade of finish.
- IMPORTANT This process must happen within 10 minutes of application. Back roll the surface in two directions at right angles with a spike roller.
IMPORTANT
Temporary moisture barrier
If the substrate moisture content measured with the CM-method is > 4% by weight, apply a temporary moisture barrier consisting of Sikafloor® EpoCem®.
- Contact Sika technical services for more information.
CLEANING OF TOOLS
Clean all tools and application equipment with Sika® Thinner C immediately after use. Hardened material can only be removed mechanically.