Sikafloor®-81 EpoCem® New HC
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
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 C | Powder / Grey |
Product Details
APPROVALS / STANDARDS
Performance test No. A-13974-1, 1993, LPM, CH-5712
Beinwil am See
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)
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
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 time | 10 °C | 20 °C | 30 °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 roller | 30 minutes | 15 minutes | 10 minutes |
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 |
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.