Sikafloor®-161 L
2-part epoxy primer, levelling mortar, intermediate layer and mortar screed
Sikafloor®-161 L is an economic, two part, solvent free, low viscosity epoxy resin. As primer, levelling mortar, middle layer and mortar screed as well as part of the Sika flooring systems.
- Low viscosity
- Good penetration
- Excellent bond strength
- Solvent free
- Easy application
- Short waiting times
- Multi-purpose
Usage
- For priming concrete substrates, cement screeds and epoxy mortars
- For normal to strong absorbent substrates
- Primer for the Sika flooring systems
- Binder for levelling mortars and mortar screeds
Advantages
- Low viscosity
- Good penetration
- Excellent bond strength
- Solvent free
- Easy application
- Short waiting times
- Multi-purpose
Packaging
| Part A | 20.8 kg |
| Part B | 5.2 kg |
Colour
| Part A | Brownish liquid |
| Part B | Yellowish transpraent liquid |
Product Details
APPROVALS / CERTIFICATES
Meet to the requirements of GB22374-2008
Composition
Epoxy
Shelf life
24 months
Storage conditions
Stored properly in original, unopened and undamaged sealed packaging, in dry conditions at temperatures between +5°C and +30°C.
Density
| Part A | ~1.6 kg/l |
| Part B | ~1.0 kg/l |
| Mixture | ~1.4 kg/l |
All density values at +23°C.
Solid content by weight
~100%
Solid content by volume
~100%
Volatile organic compound (VOC) content
| <60 g/l | GB/T 22374-2008 |
Shore D Hardness
| ~70 | GB/T 2411 |
Compressive Strength
| ~60 N/mm2 (28 days, +23°C) | GB/T 17671 |
Tensile Adhesion Strength
| > 1.5 N/mm² (failure in concrete) | JC/T 907 |
Application
Mixing Ratio
Part A : part B = 4: 1 (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 the dew point to reduce risk of condensation or blooming on the floor finish.
Substrate Temperature
+10°C min. / +30°C max.
Substrate Moisture Content
< 6% pbw moisture content using the Sika®-Tramex meter (at the time of application)
Please note the moisture content must be < 4% when using the CM-measurement method or Oven-dry-method.
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 minutes |
| +20°C | ~ 25 minutes |
| +30°C | ~ 15 minutes |
Curing Time
Before applying solvent free products on Sikafloor®-161 L allow:
| Substrate temperature | Minimum | Maximum |
| +10°C | 24 hours | 4 days |
| +20°C | 12 hours | 2 days |
| +30°C | 8 hours | 24 hours |
Applied Product Ready for Use
| Temperature | Foot traffic | Light traffic | Full cure | |||
| +10°C | ~ 24 hours | ~ 6 days | ~ 10 days | |||
| +20°C |
| ~ 4 days | ~ 7 days | |||
| +30°C |
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Consumption
| Coating System | Product | Consumption |
| Priming | Sikafloor®-161 L | 0.35 - 0.55 kg/m² |
| Levelling mortar fine | 1 pbw Sikafloor®-161 L + | 1.7 kg/m²/mm (mixture) |
| Levelling mortar medium (surface roughness up to 2 mm) | 1 pbw Sikafloor®-161 L + 1 pbw quartz sand (0.1 - 0.3 mm) + 0.015 pbw Extender T | 1.8 kg/m²/mm (mixture) |
| Intermediate layer (self-smoothing 1.5 to 3 mm) | 1 pbw Sikafloor®-161 L + | 1.8 kg/m²/mm（ mixture） (i.e.0.9 kg/m² binder + 0.9 kg/m² quartz sand) per mm layer thickness ~ 4.0 kg/m² |
| Bonding bridge | Sikafloor®-161 L | 0.3 - 0.5 kg/m² |
| Epoxy screed (15 - 20 mm layer thickness ) / Repair Mortar | 1 pbw Sikafloor-161 L + 8 pbw quartz sand | 2.2 kg/m²/mm（ mixture） |
EQUIPMENT
Sikafloor®-161 L 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.
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.
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 L by brush, roller or squeegee.
Levelling mortar:
Rough surfaces need to be levelled first. Apply the levelling mortar by squeegee/trowel to the required thickness.
Intermediate layer:
Sikafloor®-161 L is poured, spread evenly by means of a serrated trowel. Roll immediately in two directions with spiked roller to ensure even thickness and if required broadcast with quartz sand, after about 15 minutes (at +20°C) but before 30 minutes (at+20°C), at first lightly and then to excess.
Bonding bridge:
Apply Sikafloor®-161 L by brush, roller or squeegee.
Epoxy screed / repair mortar:
Apply the mortar screed evenly on the still “tacky” bonding bridge, using levelling battens and screed rails as necessary. After a short waiting time compact and smoothen the mortar with a trowel or Teflon coated power float (usually 20 - 90 rpm).
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.