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Sikafloor 160 Epoxy System :

Sikafloor-160,  2-part solvent free epoxy primer & binder, modular Sikafloor system  

Product Description

Sikafloor-160 is a two part, low viscosity epoxy resin.  "Total solid epoxy composition acc. to the test method Deutsche Bauchemie e.V.  (German Association for construction chemicals)"  


  • For priming concrete substrates, cement screeds and epoxy mortars
  • For normal to strongly absorbent surfaces
  • Primer for all Sika Epoxy floorings
  • Binder for levelling mortars and mortar screeds 

Characteristics /Advantages

  • Solvent Free
  • Available in bulk quantities
  • Low viscosity
  • Good penetration ability
  • High bond strength
  • Easy application
  • Short waiting times
  • Multi-purpose 

Product Data

Form Appearance /Colours Resin - part A: transparent, liquid Hardener - part B: transparent, liquid

  • Packaging Pre-proportioned 5.5 kg kit:  Part A 3.55 kg,  Part B 2 kg
  • Pre-proportioned 11.1 kg kit:  Part A: 7.1 kg,  Part B 4 kg
  • Bulk packaging:  Part A: 20kg and 200kg,  Part B 20kg and 200kg
  • Yield 5.55 kg kit: 5.1 litres approx.  11.10 kg kit 10.2 litres approx.
  • Mix Ratio Part A : Part B = (by mass) 1.8:1, (by volume) 1.6:1 

Consumption (as primer)

2-3 m2/litre for porous and high profile substrates and 5-6 m2/litre for low  profile and dense substrates  


Storage Conditions/Shelf-Life

24 months from date of production if stored properly in original, unopened and  undamaged sealed packaging, in dry conditions at temperatures between +5oC and  30oC.  

Technical Data

Chemical Base Epoxy

  • Density Part A: ~ 1.10 kg/l,  Part B: ~ 1.02 kg/l
  • Mixed Resin: ~ 1.1 kg/l (DIN EN ISO 2811-1)
  • All density values at +23oC
  • Solid Content ~ 100% (by volume) / ~ 100% (by weight)

Mechanical / Physical  Properties

  • Compressive Strength Mortar: ~ 95 N/mm2 (7 days / +23oC / 50% r.h.) (EN 196-1)
  • Bond Strength > 1.5 N/mm2 (failure in concrete) (EN 4624)
  • Shore D Hardness 83 (7days / +23oC / 50% r.h.) (DIN 53505) 

System Information

System Structure Primer:

  • Low/medium porosity concrete: 1 x Sikafloor-160
  • High porosity concrete: 2 x Sikafloor-160

Levelling mortar fine (surface roughness < 1 mm):

  • Primer: 1 x Sikafloor-160
  • Levelling mortar: 1 x Sikafloor-160 + Sikafloor Fillers + Sikadur-513

Levelling mortar medium (surface roughness up to 2 mm):

  • Primer: 1 x Sikafloor-160
  • Levelling mortar: 1 x Sikafloor-160 + Sikafloor Fillers + Sikadur-513

Mortar Screed (15 - 20 mm layer thickness ) / Repair Mortar:

  • Primer: 1 x Sikafloor-160
  • Bonding bridge: 1 x Sikafloor-160
  • Screed: 1 x Sikafloor-160 + Sikadur-506 

Coating System




Sikafloor 160

2-3 m2/litre or 5-6 m2/litre for  dense surfaces

Levelling mortar fine  (surface roughness < 1 mm)

1 pbw Sikafloor-160  + 0.5 pbw Sikafloor Fillers  + 0.015 pbw Sikadur-513

1.4 kg/m2/mm

Levelling mortar medium  (surface roughness up to 2  mm)  

1 pbw Sikafloor-160  + 1 pbw Sikafloor Fillers  + 0.015 pbw Sikadur-513

1.6 kg/m2/mm

Bonding Bridge

Sikafloor 160

2-3 m2/litre or 5-6 m2/litre for  dense surfaces

Mortar Screed (15 - 20 mm  layer thickness ) / Repair  Mortar

1 pbw Sikafloor-160 + 10 pbw  Sikadur-506

2.2 kg/m2/mm

  • These figures are theoretical and do not allow for any additional material due to  surface porosity, surface profile ,variations in level or wastage etc.  
  • Substrate Quality Concrete substrates must be sound and of sufficient compressive strength
  • (minimum 25 N/mm2) with a minimum pull off strength of 1.5 N/mm2.
  • The substrate must be clean, dry and free of all contaminants such as dirt, oil, grease, coatings and surface treatments, etc.
  • If in doubt, apply a test area first. 

Substrate Preparation Concrete substrates must be prepared mechanically using abrasive blast cleaning or scarifying equipment to remove cement laitance and achieve an open textured surface.

Substrates heavily impregnated with oil must be cleaned by torching or other methods. To check that all traces of oil have been completely removed, sprinkle a few drops of water over the surface. If all the water is quickly absorbed, the surface is sufficiently oil and grease free. If water forms into globules that remain on the surface, further thorough treatment of the substrate is necessary.

Weak concrete must be removed and surface defects such as blowholes and voids must be fully exposed.

Repairs to the substrate, filling of blowholes/voids and surface levelling must be carried out using appropriate products from the Sikafloor, Sikadur and SikaGard range of materials.

The concrete or screed substrate has to be primed or levelled in order to achieve an even surface.

High spots must be removed by e.g. grinding.

All dust, loose and friable material must be completely removed from all surfaces before application of the product, preferably by brush and/or vacuum.  

  • Substrate Temperature +10oC min. / +30oC max.
  • Ambient Temperature +10oC min. / +30oC 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).

Relative Air Humidity 80% r.h. max.

Dew Point Beware of condensation! The substrate and uncured floor must be at least 3oC 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.  

Application Instructions

  • Mixing Time 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 Sikadur-513 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-160 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 Method /Tools

  • 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-160 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.
  • Bonding bridge:  Apply Sikafloor-160 by brush, roller or squeegee.
  • Mortar 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 Tools 

Clean all tools and application equipment with Thinner C immediately after use.

Hardened and/or cured material can only be removed mechanically.  





50 minutes


25 minutes


15 minutes

Waiting Time / Overcoating  

Before applying solvent free products on Sikafloor-160 allow:

Substrate temperature




24 hours

4 days


12 hours

2 days


6 hours

1 day

Before applying solvent containing products on Sikafloor-160 allow:

Substrate temperature




36 hours

3 days


20 hours

2 days


10 hours

1 day

Times are approximate and will be affected by changing ambient conditions

particularly temperature and relative humidity.  

Notes on Application / Limitations

  • Do not apply Sikafloor-160 on substrates with rising moisture.
  • Freshly applied Sikafloor-160 should be protected from damp, condensation and water for at least 24 hours.
  • Avoid puddles on the surface with the primer.
  • Sikafloor-160 mortar screed is not suitable for frequent or permanent contact with water unless sealed.
  • Practical trials should be carried out for mortar mixes to assess suitable aggregate grain size distribution.
  • For external applications, apply on a falling temperature. If applied during rising temperatures “pin holing” may occur from rising air.

Construction joints require pre-treatment. Treat as follows:

  • Static Cracks: prefill and level with Sikadur or Sikafloor epoxy resin
  • Dynamic cracks: to be assessed and if necessary apply a stripe coat of elastomeric material or design as a movement joint
  • The incorrect assessment and treatment of cracks may lead to a reduced service life and reflective cracking.
  • Under certain conditions, underfloor heating or high ambient temperatures combined with high point loading, may lead to imprints in the resin.
  • If heating is required do not use gas, oil, paraffin or other fossil fuel heaters, these produce large quantities of both CO2 and H2O water vapour, which may adversely  affect the finish. For heating use only electric powered warm air blower systems. 

Curing Details

Applied Product ready for use  


Foot traffic

Light traffic

Full cure


36 hours

3 days

3 days


20 hours

2 days

2 days


10 hours

1 day

1 day

Note: Times are approximate and will be effected by changing ambient conditions.  

Value Base All technical data stated in this Product Data Sheet are based on laboratory tests.

Actual measured data may vary due to circumstances beyond our control.   


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