Sikafloor®-263 SL
Sikafloor®-263 SL is a multi-component, self-smoothing, solvent-free epoxy , provides continuous protection for concrete floors in light, medium and heavy duty applications at thickness of between 1.5 and 4mm or greater . The system can be applied successfully at greater thickness but on stages combined with broadcasted aggregates to increase & enhance the mechanical bonding between the layers .
- Highly fillable
- Good chemical and mechanical resistance
- Excellent wear & abrasion resistant
- Easy application
- Easy to clean
- Liquid proof
- Gloss finish
- Slip resistant surface possible
Usage
Sikafloor®-263 SL is used as:- Self-smoothing and broadcast systems for concrete and cement screeds with normal up to medium heavy wear e.g. storage and assembly halls, maintenance workshops, garages, loading ramps , Warehouses , Car Parks and other traffic decks .
- The broadcast system is recommended for multi-storey and underground car parks, maintenance hangars and for temporary wet process areas, e.g. beverage and food industry .
- Pharmaceutical and other medical or laboratory areas .
- Showrooms , Aircrafts and other demonstration areas .
- Chemicals production filed .
- Oil & Gas plants .
Advantages
- Highly fillable
- Good chemical and mechanical resistance
- Excellent wear & abrasion resistant
- Easy application
- Easy to clean
- Liquid proof
- Gloss finish
- Slip resistant surface possible
Packaging
| Part A | 11.85 kg |
| Part B | 3.15 kg |
| Part C ( Mixing Ratio 1:1 ) | 15.00 kg |
| Part C ( Mixing Ratio 1:1.25 ) | 18.75 kg |
Full Unit ( A+B+C ) = 30 Kg ( Mix Ratio 1:1 ) for thickness 1.5 - 3mm .
Full Unit ( A+B+C ) = 33.75 Kg ( Mix Ratio 1:1.25 ) for thickness > 3mm .
Colour
| Resin - part A: | coloured, liquid |
| Hardener - part B | transparent, liquid |
RAL 1001, 6021, 7030, 7032, 7035, 7037, 7038, 7040, 7042, 9002
Other colours on request.
Under direct sun light there may be some discolouration and colour variation; this has no influence on the function and performance of the coating.
Product Details
SUSTAINABILITY
Conformity with LEED v2009 IEQc 4.2: Low-Emitting Materials - Paints and Coatings
APPROVALS / CERTIFICATES
- Particle emission certificate Sikafloor®-263 SL CSM Statement of Qualification – ISO 14644-1, class 5– Report No. SI 0904-480 and GMP class A, Report No. SI 1008-533.
- Outgassing emission certificate Sikafloor®-263 SL CSM Statement of Qualification – ISO 14644-8, class 6,5 - Report No. SI 0904-480.
- Good biological Resistance in accordance with ISO 846, CSM Report No. 1008-533
- Fire classification in accordance with EN 13501-1, Report-No. 2007-B-0181/14, MPA Dresden, Germany, February 2007.
- Synthetic resin screed material according to EN 13813:2002, Declaration of Performance 02 08 01 02 05 00000002 1008, and provided with the CE marking.
- Coating for surface protection of concrete according to EN 1504-2:2004, Declaration of Performance 02 08 01 02 05 00000002 1008, certified by notified factory production control certification body 0921, certificate of conformity of the factory production control 2017, and provided with the CE marking.
- ISEGA Certificate of Conformity 41583 U16
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Composition
Epoxy
Shelf life
12 months from date of production if stored properly in original, unopened and undamaged packing
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.
Density
| Part A | ~ 1.50 kg/l |
| Part B | ~ 1.00 kg/l |
| Mixed resin | ~ 1.43 kg/l |
| Filled resin ( 1:1) | ~ 1.84 kg/l |
| Filled resin ( 1:1.25) | ~ 1.90 kg/l |
All Density values at +23 °C.
Solid content
~100 % by Weight & by Volume
Volatile organic compound (VOC) content
SCAQMD Method 304-91 VOC Content < 100 g/l
Shore D Hardness
| ~76 (7 days / +23 °C) | (DIN 53 505) |
| ~76 | (ASTM D 2240) |
Abrasion Resistance
| ~ 35 mg (CS 10/1000/1000) (7 days / +23 °C) | (DIN 53 109) |
| ~ 53 mg (CS 10/1000/1000) | (ASTM D4060) |
Compressive strength
| ~ 50 N/mm² | (EN196-1) |
| ~ 52 N/mm² | (ASTM C579) |
Tensile Strength in Flexure
| ~ 20 N/mm² | (EN 196-1) |
| ~ 20 N/mm² | (ASTM C580) |
Tensile strength
| ~ 23 N/mm² | (ASTM C307) |
Tensile Adhesion Strength
| > 2 N/mm² (failure in concrete) | (ISO 4624) |
| > 1.5 N/mm² (failure in concrete) | (DIN 53 232) |
(after 28 days at 23°C)
Resistance to Impact
| No Cracks | (ASTM D 2794) |
Chemical resistance
Resistant to many chemicals. Contact Sika technical service for specific information.
Temperature resistance
| Exposure* | Dry heat |
| Permanent | +50 °C |
| Short-term max. 7 d | +80 °C |
| Short-term max. 12 h | +100 °C |
Short-term moist/wet heat* up to +80°C where exposure is only occasional (steam cleaning etc.).
*No simultaneous chemical and mechanical exposure and only in combination with Sikafloor® systems as a broadcast system with approx. 3 - 4 mm thickness.
Water absorption
| 0.77% | (ASTM C413) |
Permeability to Water Vapour
| W.V.T = 1.2 X 10-3 g/h.m2 | (ASTM E 96) |
Application
Ambient Air Temperature
+10 °C min. / +30 °C 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.
Note: Low temperatures and high humidity conditions increase the probability of blooming.
Substrate Temperature
+10 °C min. / +30 °C max.
Pot Life
| Temperature | Time |
| +10 °C | ~ 50 minutes |
| +20 °C | ~ 25 minutes |
| +30 °C | ~ 15 minutes |
Curing Time
Applied product ready for use :
| Temperature | Foot Traffic | Light Exposure | Full Curing |
| +10 °C | ~ 72 hours | ~ 5 days | ~ 10 days |
| +20 °C | ~ 48 hours | ~ 3 days | ~ 7 days |
| +30 °C | ~ 24 hours | ~ 2 days | ~ 5 days |
Times are approximate and will be affected by changing ambient conditions particularly temperature and relative humidity.
Waiting Time / Overcoating
Before applying Sikafloor 263SL over the primer or the putty layer :
| Temperature | Minimum | Maximum |
| +10 °C | 24 hours | 3 days |
| +20 °C | 12 hours | 2 days |
| +30 °C | 8 hours | 1 day |
Before applying coatings over Sikafloor 263SL :
| Temperature |
| Maximum | |
| +10 °C | 36 hours | 3 days | |
| +20 °C | 24 hours | 2 days | |
| +30 °C | 16 hours | 1 day |
Times are approximate and will be affected by changing ambient conditions particularly temperature and relative humidity.
Consumption
| Primer : ~ 0.2 - 0.3 Kg/m2 ( depends on the surface porosity ) | |
| Putty : ~ 0.15 - 0.25 Kg/m2 ( depends on the surface quality ) | |
| Body Layer up to 3mm thickness : ~ 1.85 Kg/m2/mm | |
| Body Layer > 3mm thickness : ~ 1.9 Kg/m2/mm | |
| Broadcasting : ~ 3 - 4 Kg/m2 | |
| Top Coat : ~ 0.25 - 0.35 Kg/m2 |
MIXING
Prior to mixing, stir part A mechanically. When all of part B has been added to part A, mix continuously for 3 minutes until a uniform mix has been achieved. When parts A and B have been mixed, add the quartz sand and if required the Extender T and mix 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 minimise air entrainment.
Mixing Tools
Sikafloor®-263 SL must be thoroughly mixed using a low speed electric stirrer (300 - 400 rpm) or other suitable equipment. For the preparation of mortars use a forced action mixer of rotating pan, paddle or trough type. Free fall mixers should not be used.
APPLICATION
Prior to application, confirm substrate moisture content, relative air humidity and dew point. If > 4 % pbw moisture content, Sikafloor® EpoCem® may be applied as a T.M.B. (temporary moisture barrier) system.
Primer:
Make sure that a continuous, pore free coat covers the substrate. If necessary, apply two priming coats. Apply Sikafloor®- 161 / 94 by brush, roller or squeegee.
Preferred application is by using a squeegee and then backrolling crosswise.
Levelling:
Rough surfaces need to be levelled first using Sikafloor®- 161 / 92EG mixed by fine filler .
Wearing course smooth:
Sikafloor®-263 SL is poured, spread evenly by means of a serrated trowel.
After spreading the material evenly, turn the serrated trowel and smooth the surface in order to achieve an aesthetically higher grade of finish.
Roll immediately in two directions with a spiked roller to ensure even thickness.
Broadcast system:
Sikafloor®-263 SL is poured, spread evenly by means of a serrated trowel.
Then, level and remove any entrapped air with a spiked roller and after about 15 minutes (at +20 °C) but before 30 minutes (at +20 °C), broadcast with quartz sand, at first lightly and then to excess.
CLEANING OF EQUIPMENT
Clean all tools and application equipment with Thinner C immediately after use. Hardened and/or cured material can only be removed mechanically.