Sikafloor®-263 SL HC
2-PART EPOXY COVERING FOR SMOOTH AND BROADCASTED FLOORING SURFACES
Sikafloor®-263 SL HC is a two part, multipurpose binder based on epoxy resin.
- Highly fillable
- Good chemical and mechanical resistance
- Easy application
- Liquid proof
- Gloss finish
- Slip resistant surface possible
Usage
Sikafloor®-263 SL HC 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 etc.
- The broadcast system is recommended for multi-storey and underground car parks, maintenance hangars and for wet process areas, e.g. beverage and food industry.
Advantages
- Highly fillable
- Good chemical and mechanical resistance
- Easy application
- Liquid proof
- Gloss finish
- Slip resistant surface possible
Packaging
Part A : 15.8 kg can, 7.9 kg can
Part B : 4.2 kg can, 2.1 kg can
Part A+B : 20 kg set and 10 kg set
Part C (Agg. F36) : 8 kg bag
Part A+B+C : 18 kg set (A= 7.9 kg + B= 2.1 kg + C= 8 kg)
Colour
| Resin - part A: | Liquid / Coloured |
| Hardener - part B: | Liquid / Clear Yellowish |
| Agg. F36 - Part C: | Powder / Grey |
Available in a number of colour shades. Please consult our Technical Sales Engineer for further details. Under direct UV exposure (sun, lamp, skylight, etc.) there may be some discolouration and colour deviation, this has no influence on the function and performance of the coating.
Product Details
ENVIRONMENTAL INFORMATION
Conforms with LEED v4 EQ credit : low-emitting materials
APPROVALS / STANDARDS
- VOC content pass LEED v4.1 requirement (VOC Content), Report no. 392-2022-10179005_XG_EN, Eurofins Product Testing, Denmark, June 2022.
- VOC emission pass CDPH, Report no. 392-2022-00179002_H_EN, Eurofins Product Testing, Denmark, May 2022.
- 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.
- Certified Singapore Green Building Product - SGBC Green Marks 4 Ticks: Leader
Chemical Base
Epoxy
Shelf Life
24 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 +18 °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 (1:0.8) | ~1.84 kg/L |
All Density values at +23 °C.
Solid content by weight
~100 %
Solid content by volume
~100 %
Shore D Hardness
| ~76 (7 days/+23 °C) |
Abrasion Resistance
| 41 mg (CS 10/1000/1000) (7 days / +23 °C) | (DIN 53 109) |
Compressive Strength
| Resin: ~50.0 N/mm2 , Resin (filled 1:0.9 with F36 (28 days)) | (EN196-1) |
Tensile Strength in Flexure
| Resin: ~20.0 N/mm2 , Resin (filled 1:0.9 with F36 (28 days)) | (EN 196-1) |
Tensile Adhesion Strength
| >1.5 N/mm² (failure in concrete) | (ISO 4624) |
Thermal Resistance
| Exposure* | Dry heat |
| Permanent | +50 °C |
| Short-term max. 7 days | +80 °C |
| Short-term max. 12 hours | +100 °C |
Short-term moist/wet heat* up to +80 °C where exposure is only occasional (steam cleaning etc.).
Chemical Resistance
Resistant to many chemicals. Contact Sika technical service for specific Information.
Application
Mixing Ratio
Part A : part B = 79 : 21 (by weight)
Ambient Air Temperature
+10 °C min. / +30 °C max.
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.
Note: Low temperatures and high humidity conditions increase the probability of blooming.
Substrate Temperature
+10 °C min. / +30 °C max.
Substrate Moisture Content
< 4 % pbw moisture content.
Test method: Sika®-Tramex meter, CM-measurement or Oven-dry-method. No rising moisture according to ASTM (Polyethylene-sheet).
Pot Life
| Temperature | Time |
| +10 °C | ~50 min |
| +20 °C | ~25 min |
| +30 °C | ~15 min |
Curing Time
Before applying Sikafloor®-263 SL HC on Sikafloor®-161 HC allow:
| Substrate temperature | Minimum | Maximum |
| +10 °C | 24 h | 3 d |
| +20 °C | 12 h | 2 d |
| +30 °C | 8 h | 1 d |
Before applying Sikafloor®-263 SL HC on Sikafloor®-263 SL HC allow:
| Substrate temperature | Minimum | Maximum |
| +10 °C | 30 h | 3 d |
| +20 °C | 24 h | 2 d |
| +30 °C | 16 h | 1 d |
Note : Times are approximate and will be affected by changing ambient conditions particularly temperature and relative humidity.
Applied Product Ready for Use
| Temperature | Foot traffic | Light traffic | Full cure |
| +10 °C | ~72 h | ~6 d | ~10 d |
| +20 °C | ~24 h | ~4 d | ~7 d |
| +30 °C | ~18 h | ~2 d | ~5 d |
Note: Times are approximate and will be affected by changing ambient conditions.
Consumption
| Coating System | Product | Consumption |
| Priming | Sikafloor®-161/-160 HC | 1-2 x 0.35-0.55 kg/m² |
| Levelling (optional) | Sikafloor®-161/-160 HC levelling mortar | Refer to PDS of Sikafloor®-161 HC |
| Self-smoothing wearing course (Film thickness ~1. 5 - 3.0 mm ) | 1 pbw Sikafloor®-263 SL HC 0.8 pbw quartz sand (0.1 - 0.3 mm) | ~1.84 kg/m² mixture (1.02 kg/m² binder + 0.82 kg/m² quartz sand) per mm layer thickness |
| Broadcast system (Film thickness ~4.0 mm) | 1 pbw Sikafloor®-263 SL HC + broadcasting quartz sand 0.4 -0.7 mm + Seal coat Sikafloor®-263 SL HC/-264 HC | 2.00 kg/m² 2.00 kg/m² ~6.0 kg/m² ~0.7 kg/m² |
These figures are theoretical and do not allow for any additional material due to surface porosity, surface profile, variations in level and wastage etc.
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 HC must be thoroughly mixed using a low speed stirrer (300 – 400 rpm) or other suitable equipment.
APPLICATION
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.
Primer
Make sure that a continuous, pore free coat covers the substrate. If necessary, apply two priming coats. Apply Sikafloor®-161/160 HC by brush, roller or squeegee. Preferred application is by using a squeegee and then backrolling crosswise.
Levelling:
Rough surfaces need to be levelled first. Therefore use e.g. Sikafloor®-161 HC levelling mortar (see PDS).
Wearing course smooth:
Sikafloor®-263 SL HC 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 HC is poured, spread evenly by means of a serrated trowel.
Then, level and remove any entrapped air with a spiked roller and after about 5 minutes (at +30 °C) but before 10 minutes (at +30 °C), broadcast with quartz sand, at first lightly and then to excess.
CLEANING OF TOOLS
Clean all tools and application equipment with Thinner C immediately after use. Hardened and/or cured material can only be removed mechanically.
CLEANING
To maintain the appearance of the floor after application, Sikafloor®-263 SL HC 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.