Sikafloor®-161
Sikafloor®-161 is an economic, two part, low viscosity epoxy resin. Suitable for use in hot and tropical climatic conditions.
- Low viscosity
- Good penetration
- Excellent bond strength
- Easy application
- Short waiting times
- Multi-purpose
Usage
- For priming concrete substrates, cement screeds and epoxy mortars
- For low to medium absorbent substrates
- Primer for the Sikafloor®-263 SL and Sikafloor®-264 economic flooring systems
- Binder for levelling mortars and mortar screeds
- Intermediate layer underneath Sikafloor®-263 SL and Sikafloor®-264
Advantages
- Low viscosity
- Good penetration
- Excellent bond strength
- Easy application
- Short waiting times
- Multi-purpose
Packaging
| Part A | 15.8 kg containers |
| Part B | 4.2 kg containers |
| Part A+B | 20 kg ready to mix units |
Colour
| Resin - part A | brownish-transparent, liquid |
| Hardener - part B | transparent, liquid |
Product Details
SUSTAINABILITY
Conformity with LEED v2009 IEQc 4.2: Low-Emitting Materials - Paints and Coatings
CERTIFICATES AND TEST REPORTS
- Synthetic resin screed material according to EN 13813:2002, Declaration of Performance 02 08 01 02 005 0 000004 1008, certified by notified factory production control certification body 0921, and according to CE standard.
- Coating for surface protection of concrete according to EN 1504-2:2004, Declaration of Performance 02 08 01 02 005 0 000004 1008, certified by notified factory production control certification body 0921, and according to CE standard.
- “Products and systems for the protection and repair of concrete structures–Test method – Compatibility on wet concrete when exposed to the effects of humidity from the rear” according to the DIN EN 13578:2004. Proof statement P 6239
- Wear resistance, bond, compressive and flexural stregth tested according to EN 13892:2003, certified by INCD URBAN-INCERC
Composition
Epoxy
Shelf life
24 months from date of production
Storage conditions
The packaging must be stored properly in original, unopened and undamaged sealed packaging, in dry conditions at temperatures between +5 °C and +30 °C.
Density
~ 1.52-1.62
Solid content by mass
~100 %
Solid content by volume
~100 %
Shore D Hardness
| ~76 (7 days / +23 °C) | (DIN 53 505) |
Abrasion resistance
| ~17.......... AR0.5 (AR≤50μm) Test conditions: temperature of 23.3°C and relative humidity of 48.4% | SR EN 13892-4:2003 |
Compressive strength
| ~70.7 N/mm² Test conditions: temperature of 25.3°C and relative humidity of 51% | SR EN 13892-2:2003 |
Flexural-strength
| ~32.0 N/mm² Test conditions: temperature of 25.3°C and relative humidity of 51% | SR EN 13892-2:2003 |
Tensile adhesion strength
| ~3.3 N/mm² (failure in concrete).......... Class B2.0 Test conditions: temperature of 25°C and relative humidity of 51% | SR EN 13813:2003 |
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.
Application
Mixing ratio
Part A : part B = 79 : 21 (by weight)
Ambient air temperature
+10 °C min. / +35 °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. / +35°C max.
Substrate moisture content
< 6% pbw moisture content using the Sika® - Tramex meter (at the time of application).
Please note that the moisture content must be < 4% pbw when using the CM measurement 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 allow:
| Substrate temperature | Minimum | Maximum |
| +10 °C | 24 hours | 4 days |
| +20 °C | 12 hours | 2 days |
| +30 °C | 8 hours | 24 hours |
Before applying solvent containing products on Sikafloor®-161 allow:
| Substrate temperature | Minimum | Maximum |
| +10 °C | 36 hours | 6 days |
| +20 °C | 24 hours | 4 days |
| +30 °C | 16 hours | 2 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 | ~24 hours | ~6 days | ~10 days |
| + 20°C | ~12 hours | ~4 days | ~7 days |
| + 30°C | ~8 hours | ~2 days | ~5 days |
Note: Times are approximate and will be effected by changing ambient conditions.
Consumption
| Coating System | Product | Consumption |
| Priming | 1–2 x Sikafloor®-161 | 1–2 × 0.35–0.55 kg/m² |
| *Levelling mortar fine (surface roughness < 1 mm) | 1 pbw Sikafloor®-161 + 0.5 pbw quartz sand (0.1–0.3 mm) | 1.7 kg/m²/mm |
| *Levelling mortar medium (surface roughness up to 2 mm) | 1 pbw Sikafloor®-161 + 1 pbw quartz sand (0.1–0.3 mm) | 1.9 kg/m²/mm) |
| Intermediate layer (self-smoothing 1.5 to 3 mm) | 1 pbw Sikafloor®-161 + 1 pbw quartz sand (0.1–0.3 mm) | 1.9 kg/m²/mm |
| + optional broadcast quartz sand 0.4–0.7 mm | ~ 4.0 kg/m² | |
| Bonding bridge | 1–2 × Sikafloor®-161 | 1–2 × 0.3–0.5 kg/m² |
| Epoxy screed (15–20 mm layer thickness ) / Repair Mortar | 1 pbw Sikafloor®-161 + 8 pbw quartz sand | 2.2 kg/m²/mm |
* For thickening and viscosity, add 0.015 pbw Extender T
Note: These figures are theoretical and do not allow for any additional material required due to surface porosity, surface profile, variations in level or 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®-161 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, 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 by brush, roller or squeegee. Preferred application is by using a squeegee and then backrolling crosswise.
Levelling mortar
Rough surfaces need to be levelled first. Apply the levelling mortar by squeegee/trowel to the required thickness.
Intermediate layer
Sikafloor®-161 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 by brush, roller or squeegee. Preferred application is by using a squeegee and then backrolling crosswise.
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.