Sikafloor®-263 SL HC
2-PART EPOXY SELF-SMOOTHING AND BROADCAST SYSTEM
Sikafloor®-263 SL HC is a two part, economic, multi purpose binder based on epoxy.
- Highly fillable
- Good chemical and mechanical resistance
- Easy application
- Economical
- Liquid proof
- Solvent-free
- Gloss finish, dust-proof sealer
- Slip resistant surface possible
Usage
- 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 wet process areas, e.g. in beverage industry, food industry, maintenance hangars etc.
Advantages
- Highly fillable
- Good chemical and mechanical resistance
- Easy application
- Economical
- Liquid proof
- Solvent-free
- Gloss finish, dust-proof sealer
- Slip resistant surface possible
Packaging
| Part A | 7.9 kg can |
| Part B | 2.1 kg can |
| Part A+B | 10 kg set |
| Part A | 15.8 kg can |
| Part B | 4.2 kg can |
| Part A+B | 20 kg set |
Colour
| Resin - part A: | Liquid / Coloured |
| Hardener - part B: | Liquid / Transparent |
Standard colour shades: RAL 6010, RAL 6011, RAL 6032, RAL 1013, RAL 1014, RAL 7032, RAL 7035, RAL 7038, RAL 9003, RAL 9016, RAL 9010, RAL 5015.
Customer colours subject to minimum orders.
Under direct sun light there may be some discolouration and colour variations; this has no influence on the function and performance of the coating.
Product Details
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 (1:1) | ~1.84 kg/l |
All Density values at +23 °C.
Solid content by weight
~100 %
Solid content by volume
~100 %
Shore D Hardness
| ~74 (7 days/+23 °C) |
Abrasion Resistance
| 62 mg (CS 10/1000/1000) (8 days / +23°C) | (ASTM D4060) |
Compressive Strength
| ~70.0 N/mm² | (ASTM D 695) |
Tensile Strength in Flexure
| ~20.0 N/mm² | (ASTM D790) |
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.).
*No simultaneous chemical and mechanical exposure.
CHEMICAL RESISTANCE
Resistant to many chemicals. Please ask for a detailed chemical resistance table.
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.
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
Waiting time / Overcoating
Before applying Sikafloor®-263 SL HC on Sikafloor®-161 HC allow:
| Substrate temperature | Minimum | Maximum |
| +10 °C | 24 hours | 3 days |
| +20 °C | 12 hours | 2 days |
| +30 °C | 8 hours | 1 days |
Before applying Sikafloor®-263 SL HC on Sikafloor®-263 SL HC allow:
| Substrate temperature | Minimum | Maximum |
| +10 °C | 30 hours | 3 days |
| +20 °C | 24 hours | 2 days |
| +30 °C | 16 hours | 1 days |
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 HC | 0.35-0.55 kg/m² |
| Levelling (optional) Self-smoothing wearing course: 1 mm | Sikafloor®-161 HC 1 pbw Sikafloor®-263 SL HC + 1 pbw Silicaflour | Refer to PDS of Sikafloor®-161 HC 1.2 kg /m²/mm binder |
| Self-smoothing wearing course (Film thickness ~1. 5 - 3.0 mm ) | Sikafloor®-263 SL HC + Quartz sand (0.1–0.3 mm) | 1.9 kg/m² mixture (0.95 kg/m² binder + 0.95 kg/m² Quartz sand) per mm layer thickness |
| Broadcast system (Film thickness ~4.0 mm) | 1 pbw Sikafloor®-263 SL HC + | 2.00 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, relative air humidity and dew point. If > 4% pbw moisture content, Sikagard®-75 EpoCem® and/or Sikafloor®-81 EpoCem® may be applied as a T.M.B. (temporary moisture barrier) system.
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 15 minutes (at +20°C) but before 30 minutes (at +20°C), broadcast with Sikafloor Filler-2, 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.