Sikafloor®-262 AS CN 2-part epoxy electrostatically conductive coating
发布时间：2023/05/15
Product Data Sheet
Edition 06/06/2012EN
Sikafloor® -262 AS CN
1 1/6
Sikafloor ® -262 AS CN
Sikafloor®-262 AS CN
2-part epoxy electrostatically conductive coating
Product
Description
Sikafloor® -262 AS CN is a two part, self-smoothing, electrostatically conductive,
coloured epoxy resin coating.
Uses
For the production of electrostatically conductive and decorative, protective
coatings on concrete or cement screeds
Suitable as a wearing course in industries such as automotive, electronic and
pharmaceutical manufacturing, storage facilities and warehouses
Particular suitable for areas with sensitive electronic equipment e.g. CNC
machinery, computer rooms , aircraft maintenance sheds, battery-charging
rooms and areas subject to high explosion risks etc
Characteristics /
Advantages
Electrostatically conductive
Good chemical and mechanical resistance
Easy to clean
Economical
Liquid proof
Solvent-free
Tight, glossy surface
Slip resistant surface possible
Test
Approval / Standards
Conforms to the requirements of DIN IEC 61340-4-1
Conforms to the requirements GB22374-2008
Product Data
Form
Appearance / Colours
Resin - part A: coloured, liquid
Hardener - part B: transparent, liquid
Almost unlimited choice of colour shades.
Due to the nature of the carbon fibbers 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 radiation there may be some
discolouration and colour deviation, this has no influence on the function and
performance of the coating.
Packaging
Part A: 21 kg containers
Part B: 4 kg containers
Part A+B: 25 kg ready to mix units
Storage
Construction 2 2/6
Sikafloor ® -262 AS CN
Storage Conditions /
Shelf-Life
12 months from date of production if stored properly in original, unopened and
undamaged sealed packaging, in dry conditions at temperatures between +5°C and
+30°C.
Technical Data
Chemical Base
Epoxy
Density
Part A: ~ 1.9 kg/l (DIN EN ISO 2811-1)
Part B: ~ 1.03 kg/L
Mixed resin: ~ 1.68 kg/l
Filled resin 1 : 0.3 : ~ 1.82 kg/l
All Density values at +23°C
Solid Content
~97 (by volume) / ~97 (by weight)
Electrostatic
Behaviour
Resistance to earth RE 104 – 106 Ω (DIN IEC 61340-4-1)
Mechanical / Physical
Properties
Compressive Strength
Resin: ~ 80 N/mm2 (28 days / +23°C) (EN 196-1)
Flexural Strength
Resin: ~ 40 N/mm2 (28 days / +23°C) (EN 196-1)
Bond Strength
>1.5 N/mm² (failure in concrete) (ISO 4624)
Shore D Hardness
77(7 days / +23°C) (DIN 53 505)
Abrasion Resistance
100 mg (CS 10/1000/1000) (8 days / +23°C) (DIN 53 109 (Taber Abrader
Test))
Resistance
Chemical Resistance
Resistant to many chemicals. Please ask for a detailed chemical resistance table.
Thermal Resistance
Exposure* Dry heat
Permanent
+50℃
Short-term max. 7 d
+80℃
Short-term max. 12 h
+100℃
Short-term moist/wet heat* up to +80°C where exposure is only occasional
(i.e. during steam cleaning etc.)
*No simultaneous chemical and mechanical exposure.
System
Information
System Structure Primer: 1 x Sikafloor® -156 or 1 x Sikafloor® -161
Earthing connection: Sikafloor® Earthing Kit
Conductive coat: 1 x Sikafloor® -220 W Conductive
Conductive wearing course: 1 x Sikafloor® -262 AS CN, filled with quartz sand
0.1 - 0.3 mm
Note: This system configuration must be fully complied with as described and may
not be changed.
Application Details 3 3/6
Sikafloor ® -262 AS CN
Consumption / Dosage
Coating System Product Consumption
Primer Sikafloor®-156 / -161 0.3 - 0.5 kg/m²
Levelling
(optional)
Sikafloor®-156 / -161
mortar
Refer to PDS of Sikafloor®-156 or
Sikafloor®-161
Conductive
coat
Sikafloor -220 W
Conductive
0.08 - 0.10 kg/m²
Wearing
course smooth
(Film thickness
~ 1.5 mm)
Sikafloor®-262 AS
CN
filled with Sikadur
505Q
Maximum 2.7 kg/m²
Binder + quartz sand
1 : 0.2 pbw (2.2 + 0.5 kg/m²) to
1 : 0.3 pbw (2.1 + 0.6 kg/m²)
Wearing
course textured
(Film thickness
~ 0.5 mm)
Sikafloor®-262 AS
CN
+ Extender T
+ Thinner C
0.84 kg/m²
1.25 % (by weight)
2% (by weight)
These figures are theoretical and does not allow for any additional material required
due to surface porosity, surface profile, variations in level and wastage etc.
Substrate Quality
The concrete substrate must be sound and of sufficient compressive strength
(minimum 25 N/mm2 ) with a minimum pull off strength of 1.5 N/mm2 .
The substrate must be clean, dry and free of all contaminants such as dirt, oil,
grease, coatings and surface treatments, etc.
If in doubt apply a test area first.
Substrate Preparation
Concrete substrates must be prepared mechanically using abrasive blast
cleaning or scarifying equipment to remove cement laitance and achieve a
profiled open textured surface.
Weak concrete must be removed and surface defects such as blowholes and
voids must be fully exposed.
Repairs to substrate, filling of blowholes/voids and surface levelling can be
carried out using appropriate products from the Sikafloor® , Sikadur® and
Sikagard® range of materials.
The concrete or screed substrate has to be primed or levelled up in order to
achieve an even surface. Unevenness influences the film thickness and thus
the conductivity of the following layer.
High spots must be removed by e.g. grinding.
All dust, loose and friable material must be completely removed from all
surfaces before application of the product, preferably by brush and/or vacuum.
Application
Conditions /
Limitations
Substrate Temperature
+10°C min. / +30°C max.
Ambient Temperature
+10°C min. / +30°C max.
Substrate Humidity
< 4% pbw moisture content.
Test method: Sika® -Tramex meter, CM - measurement or Oven-dry-method.
No rising moisture according to ASTM (Polyethylene-sheet).
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.
Application
Instructions4 4/6
Sikafloor ® -262 AS CN
Mixing
Part A : part B = 84 : 16 (by weight)
Mixing Time
Prior to mixing stir part A mechanically. When all of part B has been added to part
A, continuously mix for 2 minutes until a uniform mix has been achieved.
When parts A and B have been mixed, the quartz sand 0.1 - 0.3 mm must be mixed
with part A and B for a further 2 minutes until a uniform mix has been achieved.
To ensure thorough mixing pour materials into another container and mix again to
achieve a consistent mix.
Over mixing must be avoided to minimize air entrainment.
Mixing Tools
Sikafloor® -262 AS must be mechanically mixed using an electric power stirrer (300 -
400 rpm) or other suitable equipment.
Application Method /
Tools
Prior to application, confirm substrate moisture content, r.h. and dew point.
If > 4% pbw moisture content, Sikafloor® EpoCem® may be applied as a
T.M.B.(temporary moisture barrier) system.
Levelling:
Rough surfaces need to be levelled first because varying thickness of the
Sikafloor® -262 AS CN wearing course will influence the conductivity. Therefore use
Sikafloor® -156/ -161 levelling mortar (see PDS).
Placing of earthing plates:
See below “Notes on Application / Limits”.
Application of Sikafloor® conductive coat:
See PDS of Sikafloor® -220 W conductive.
Wearing course smooth:
Sikafloor® -262 AS CN is poured, spread evenly by means of a serrated trowel.
Roll immediately in two directions with spiked roller to ensure even thickness.
After spreading the material evenly, turn the serrated trowel and smooth the surface
in order to achieve an aesthetically higher grade of finish.
Wearing course textured:
Sikafloor® -262 AS CN is applied with a serrated trowel and then back-rolled
(crosswise) with a textured roller.
Cleaning of Tools
Clean all tools and application equipment with Thinner C immediately after use.
Hardened / cured material can only be mechanically removed.
Potlife
Temperatures Time
+10°C ~ 60 minutes
+20°C ~ 30 minutes
+30°C ~ 15 minutes
Waiting Time /
Overcoatability
Before applying Sikafloor® -262 AS CN 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. 5 5/6
Sikafloor ® -262 AS CN
Notes on Application /
Limitations
This product may only be used by experienced professionals.
Do not apply Sikafloor® -262 AS CN on substrates in which significant vapour
pressure may occur.
Do not blind the primer.
Freshly applied Sikafloor® -262 AS CN must be protected from damp, condensation
and water for at least 24 hours.
Avoid puddles on the surface with the primer.
Only start application of Sikafloor® conductive coat after the priming coat has dried
tack-free all over. Otherwise there is a risk of wrinkling or impairing of the
conductive properties.
Tools:
Recommended supplier of tools:
PPW-Polyplan-Werkzeuge GmbH, Phone: +49 40/5597260, www.polyplan.com
Serrated trowel for smooth wearing layer:
e.g. Large-Surface Scrapper No. 565, Toothed blades No. 25
Serrated trowel for textured wearing layer:
e.g. Trowel No. 999 or Adhesive Spreader No.777, Toothed blades No. 23
Maximum layer thickness of wearing course: ~ 1.5 mm.
Excessive thickness (more than 2.5 kg/m²) causes reduced conductivity.
Before the application of a conductive flooring system, a reference area has to be
applied. This reference area must be assessed and accepted from the
contractor/client. The desired result and method of conductivity measurement must
be stated in the Specification and Method Statement. The number of conductivity
measurements is strongly recommended to be as shown in the table below:
Applied floor area Number of measurements
< 10 m² 1 measurement / m²
10-100 m² 10 - 20 measurements / m²
> 100 m² 10 measurements / 100 m²
The measuring points must have a distance of at least 50 cm to the next measuring
point. In case of a measurement lower/higher than required, an additional
measurement has to be carried out within 50 cm of the point with the insufficient
result.
Placing of earthing plates:
If the Sikafloor® Earthing Kit conductor system (system of anchored brass-plates
with stable earth connection) is applied, the instructions for use have to be followed
exactly. Every earthing point is able to conduct approx. 300 m². Ensure the longest
distance of each point in the area is max. 10 m to the next earthing point. Clean the
earthing spots carefully. For longer distances, additional earthing points have to be
placed. If site conditions do not allow placing of additional earthing points, longer
distances (>10 m) have to be bridged with copper tapes. The earthing spots have to
be connected to the ring-mains. This work must be executed and approved by an
electrical engineer and in accordance with any relevant regulations.
Numbers of earth connections:
Per room at least 2 earthling points. The optimum number of earth connections
depends on the local conditions and should be specified with documents.
The incorrect assessment and treatment of cracks may lead to a reduced service
life and reflective cracking - reducing or breaking conductivity.
For exact colour matching, ensure the Sikafloor® -262 AS CN in each area is applied
from the same control batch numbers 6 6/6
Sikafloor ® -262 AS CN
Curing Details
Applied Product ready
for use
Temperature Foot traffic Light traffic Full cure
+10°C ~30 hours ~ 5 days ~ 10 days
+20°C ~24 hours ~ 3 days ~ 7 days
+30°C ~16 hours ~ 2 days ~ 5 days
Note: Times are approximate and will be affected by changing ambient conditions
Cleaning /
Maintenance
Methods
To maintain the appearance of the floor after application, Sikafloor® -262 AS CN
must have all spillages removed immediately and must be regularly cleaned using
rotary brush, mechanical scrubbers, scrubber dryer, high pressure washer, wash
and vacuum techniques etc using suitable detergents and waxes
Value Base
All technical data stated in this Product Data Sheet are based on laboratory tests.
Actual measured data may vary due to circumstances beyond our control.
Local Restrictions Please note that as a result of specific local regulations the performance of this
product may vary from country to country. Please consult the local Product Data
Sheet for the exact description of the application fields.
Health and Safety
Information
For information and advice on the safe handling, storage and disposal of chemical
products, users shall refer to the most recent Material Safety Data Sheet containing
physical, ecological, toxicological and other safety-related data.
Notes:
The information, and, in particular, the recommendations relating to the application and end-use of Sika products, are given in
good faith based on Sika's current knowledge and experience of the products when properly stored, handled and applied under
normal conditions in accordance with Sika’s recommendations. In practice, the differences in materials, substrates and actual
site conditions are such that no warranty in respect of merchantability or of fitness for a particular purpose, nor any liability
arising out of any legal relationship whatsoever, can be inferred either from this information, or from any written
recommendations, or from any other advice offered. The user of the product must test the product’s suitability for the intended
application and purpose. Sika reserves the right to change the properties of its products. The proprietary rights of third parties
must be observed. All orders are accepted subject to our current terms of sale and delivery. Users must always refer to the
most recent issue of the local Product Data Sheet for the product concerned, copies of which will be supplied on request.
Sika (China) Ltd.
No.28 Jingdong Road, Suzhou Industrial Park,
JiangSu,P.R.China
Postal Code: 215121
ISO 9001: 2008 ISO 14001:2004
Certificate No.:CC3576 Certificate No.:CC3577
The product is manufactured under a HKQAA ISO9001/ISO14001
certified quality/environmental management system.
Construction