Sikafloor® -263 SL 2-part epoxy self smoothing screed and broadcast system
发布时间：2023/05/21
Product Data Sheet
Edition 03/03/2012 EN
Sikafloor® -263 SL
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Sikafloor® -263 SL
Sikafloor® -263 SL
2-part epoxy self smoothing screed and broadcast system
Product
Description
Sikafloor® -263 SL is an economic two part multi purpose binder based on epoxy
resin for highly filled self-smoothing screeds.
Uses
For self smoothing layers on concrete and cement screeds with normal up to
medium heavy wear e.g. storage and assembly halls, maintenance workshops,
garages and loading ramps etc.
The broadcast system is recommended for wet process area, e.g. in beverage
industry, food processing, maintenance hangars etc.
Characteristics /
Advantages
Highly fill-able
Good chemical and mechanical resistance
Easy application
Economical
Liquid proof
Solvent-free
Tight, semi glossy surface
Slip resistant surface possible
Test
Approval / Standards Certificate of primer coat according to GB/T 22374-2008
Product Data
Form
Appearance / Colours
Resin – part A: coloured, liquid
Hardener – part B: transparent, liquid
Standard colours: RAL 1001, 1023, 5012, 6021, 7001, 7030, 7032, 7035, 7040,
7042, 7044, 7047.
Other colours on request.
In case of bright colour shades, e.g. yellow or orange, colour deviations may occur
due to backfilling with quartz sand. Under direct sun radiation there may be some
discolouration and colour deviation; this has no influence to the function and
performance of the coating.
Packaging
Part A: 20.54 Kg
Part B: 5.46 kg
Storage
Storage Conditions /
Shelf-Life
24 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.
Construction2
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Sikafloor® -263 SL
Technical Data
Chemical Base
Epoxy
Density
Part A: ~ 1.60 kg/l
Part B: ~ 1.00 kg/l
GB 6750
Mixed resin: ~ 1.4 kg/l
Filled resin 1 : 0.7: ~ 1.75 kg/l
All Density values at +23°C.
Solid Content
~ 100% (by volume) / ~ 100% (by weight)
Mechanical / Physical
Properties
Compressive Strength Resin: ~ 60 N/mm² (28 days / +23°C) GB/T 17671
Flexural Strength Resin: ~ 30 N/mm² (28 days / +23°C) GB/T 17671
Bond Strength > 1.5 N/mm² (failure in concrete)
JC/T 907
Shore D Hardness 76 (7 days / +23°C)
GB/T 2411
Abrasion Resistance 70 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.
Exposure*
Dry heat
Permanent
+50°C
Short-term max. 7 d
+80°C
Short-term max. 12 h
+100°C
Thermal Resistance
Short-term moist/wet heat* up to +80°C where exposure is only occasional
(steam cleaning etc.)
*No simultaneous chemical and mechanical exposure.
System
Information
System Structure
Self-smoothing system 1.5 - 3.0 mm:
Primer: 1 x Sikafloor® -161
Wearing course: 1 x Sikafloor® -263 SL + quartz sand (Sikadur 505 Q)
Broadcast system approx. 4 mm:
Primer*: 1 x Sikafloor® -161
Base coat: 1 x Sikafloor® -263 SL + quartz sand (Sikadur 505 Q)
Broadcasting: quartz sand (Sikadur 505 Q) broadcast to excess
Seal coat: 1 x Sikafloor® -264
*Note: In cases of limited exposure and normal absorbent concrete substrates
priming with Sikafloor® -161 is not necessary 3
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Sikafloor® -263 SL
Application Details
System Product Consumption
Primer Sikafloor® -161 0.35 - 0.55 kg/m²
Levelling (optional) Sikafloor® -161 levelling mortar Refer to PDS of Sikafloor® -161
Self-smoothing wearing
course
(Film thickness ~ 1.5 - 3.0
mm )
1 pbw Sikafloor® -263 SL
0.7 pbw quartz sand (Sikadur®
505 Q)
1.75 kg/m² mixture /mm thickness
Filler quantity depended on
temperature and filler type
Broadcast system
(Film thickness ~ 4.0 mm)
1 pbw Sikafloor® -263 SL
1 pbw quartz sand (Sikadur®
505 Q) + broadcasting quartz
sand 0.4 -0.7 mm
+ Seal coat Sikafloor® -264
2.00 kg/m²
2.00 kg/m²
~ 4.0 kg/m²
~ 0.7 kg/m²
Consumption / Dosage
These figures are theoretical and do not allow for any additional material due to
surface porosity, surface profile, variations in level and wastage etc.
The quantity of quartz sand in self-leveling system based on the temperature of
ambient and substrate approx. 23℃ and 2mm thickness. The actual addition of
quartz sand should be depending on temperature and thickness on site, higher
temperature and thickness, more quantity of quartz sand can be added in to resin
mixture.
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.
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.
AmbientTemperature
+10°C min. / +30°C max.
Substrate Humidity
< 4% pbw moisture content.
Test method: Sika® -Tramex meter or CM - measurement.
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 Instructions
Mixing
Part A : part B = 79 : 21 (by weight)
Mixing Time
Prior to mixing stir part A mechanically. When all of part B has been added to part 4
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Sikafloor® -263 SL
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 and/or
Extender T 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® -263 SL 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.
Leveling:
Rough surfaces need to be leveled first. Therefore use e.g. Sikafloor® -161 leveling
mortar (see PDS).
Cleaning of Tools
Clean all tools and application equipment with Thinner C immediately after use.
Hardened / cured material can only be mechanically removed.
Temperatures
Time
+10°C
~ 50 minutes
+20°C
~ 25 minutes
+30°C
~ 15 minutes
Potlife
* Before applying Sikafloor® -263 SL on Sikafloor® -161 allow:
Substrate temperature Minimum Maximum
+10°C 24 hours 3 days
+20°C 12 hours 2 days
+30°C 6 hours 1 day
Waiting Time /
Overcoatability
Times are approximate and will be affected by changing ambient conditions
particularly temperature and relative humidity. 5
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Sikafloor® -263 SL
Notes on Application /
Limitations
Do not apply Sikafloor® -263 SL on substrates in which significant vapour pressure
may occur.
Do not blind the primer.
Freshly applied Sikafloor® -263 SL must be protected from damp, condensation and
water for at least 24 hours.
Avoid puddles on the surface with the primer.
For areas with limited exposure and normally absorbent concrete substrates priming
with Sikafloor® -161 is not necessary for broadcast systems.
For roller / textured coatings: Uneven substrates as well as inclusions of dirt cannot
and should not be covered by thin sealer coats. Therefore both substrate and
adjacent areas must always be prepared and cleaned thoroughly prior to
application.
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
The incorrect assessment and treatment of cracks may lead to a reduced service
life and reflective cracking.
For exact color matching, ensure the Sikafloor® -263 SL in each area is applied from
the same control batch numbers.
Curing Details
Temperature Foot traffic Light traffic Full cure
+10°C ~ 30 hours ~ 6 days ~ 10 days
+20°C ~ 24 hours ~ 3 days ~ 7 days
+30°C ~ 16 hours ~ 2 days ~ 5 days
Applied Product ready
for use
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® -263 SL 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.
Notes
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 refer directly to Sika Ltd China
Technical Department.
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.
Protective Measures
During application and curing in closed rooms, pits and shafts etc., adequate fresh
air ventilation must be provided. Keep away from open flames including welding.
Use of basic principles of industrial hygiene and protective clothing such as gloves
and goggles etc. will enable this product to be used safely. Change soiled work
clothes and wash hands before eating and after finishing work.
Local regulations and health and safety advice on packaging labels must be 6
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Sikafloor® -263 SL
observed.
Important Notes
Residues of material must be removed according to local regulations. Fully cured
material can be disposed of as household waste under agreement with the
responsible local authorities.
Detailed health and safety information as well as detailed precautionary measures
e.g. physical, toxicological and ecological data can be obtained from the material
safety data sheet.
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.