Product Data Sheet Show all documents

Sikafloor®-81 EpoCem® New HC

SELF-LEVELLING EPOXY-CEMENT FLOOR TOPPING

Sikafloor®-81 EpoCem® New HC is three part, epoxy-modified cementitious, self levelling mortars.

  • Coating for green concrete and screed
  • Good adhesion even on mat-damp surfaces
  • Suitable for on-grade slabs without waterproofing membrane
  • Waterproof
  • Permeable to water vapour
  • Can be overcoated with epoxy resin after a waiting time of 24 h (+20 °C, 75 % relative humidity)
  • Good water and oil resistance
  • Quick application
Product Data Sheet Show all documents

Usage

Sikafloor®-81 EpoCem® New HC is used for self- levelling screeds of 1.5–3 mm thickness:
  • Temporary moisture barrier (min. 2 mm thick)
  • Levelling or patching of concrete surfaces
  • On concrete floor slabs without waterproofing membrane, on damp substrates and where aesthetic appearance is not a primary demand.
  • Patching layer for epoxy coatings as well as for industrial floor coatings
  • Designed for all cementitious substrates
 

Advantages

  • Coating for green concrete and screed
  • Good adhesion even on mat-damp surfaces
  • Suitable for on-grade slabs without waterproofing membrane
  • Waterproof
  • Permeable to water vapour
  • Can be overcoated with epoxy resin after a waiting time of 24 h (+20 °C, 75 % relative humidity)
  • Good water and oil resistance
  • Quick application

Packaging

23 kg per set (component A + B + C)

Component A

1.14 kg pail

Component B

2.86 kg pail

Component C

19 kg bag

Colour

Component A

Liquid / Whitish

Component B

Liquid / Slight yellow

Component CPowder / Grey

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

Performance test No. A-13974-1, 1993, LPM, CH-5712
Beinwil am See
Product Information

Shelf life

Min.12 months from date of production if stored properly in unopened, original packaging

Storage conditions

Dry, cool, shaded place (storage temperature from +18 °C to +30 °C)

Density

Approx. 2.10 kg/l (freshly mixed mortar)
Technical Information

Compressive Strength

> 40 N/mm² (28 days)

(EN 196-1)

Tensile Strength in Flexure

~ 10 N/mm² (28 days)

(EN 196-1)

Tensile Adhesion Strength

≥ 1.5 N/mm² (concrete failure, on prepared concrete surface)

CHEMICAL RESISTANCE

Resistant against moisture, mineral oils and aviation fuels as well as de-icing salt. The temperature resistance corresponds to the resistance of a cement screed. The chemical resistance can be increased by an additional coating. Sikafloor® EpoCem has a good resistance to extreme temperature changes e.g. cold storage rooms.

Application

Application Information

Mixing ratio

Component A : B : C = 1.14 : 2.86 : 17–19 (parts by weight)

Pot Life

Temperature

Time

+10°C

~ 40 minutes

+20°C

~ 20 minutes

+30°C~ 10 minutes

Curing time

Curing time10 °C20 °C30 °C

Ready for over painting

1 day

18 hours

12 hours

Light loading permitted

3 days

2 days

1 day

Fully cured

14 days

7 days

5 days

Max. open time for working down with spiked roller30 minutes15 minutes10 minutes
Consumption

Consumption

Self levelling mortar

Primer

Sikafloor® Repair EpoCem Module

0.20–0.30 kg/m²

Levelling mortar

Sikafloor®-81 EpoCem® New HC

2.1 kg/m²/mm
Application steps

MIXING

Shake component A and add to component B. Shake A+B together for minimum 30 seconds.
Pour the liquid component (A+B) into a mixing vessel and add powder component C by using an electric stirrer (approx. 300–400 rpm).
Mixing time minimum 3 minutes, until a homogeneous mixture is achieved!
Please note: By reducing component C ratio by 1 to 2 kg per set of Sikafloor EpoCem, the necessary consistency can be adapted.
DO NOT add any water!

 

APPLICATION

Pour the mixed material onto the still slightly tacky, ready for foot traffic primer and apply evenly with serrated trowel or drag in the recommended layer thickness.
Immediately after application ventilate with spike roller to remove entrapped air and to obtain an even layer.
Observe max. open time of Sikafloor®-81 EpoCem® New HC.

CLEANING OF TOOLS

Uncured material can be removed from tools with water. Once cured, Sikafloor®-81 EpoCem® New HC can only be removed mechanically.

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