Sikafloor®-161 HC
$160.00
Sale price
$160.00
Regular price
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Sikafloor®-161 HC
$160.00
Sale price
$160.00
Regular price
Sikafloor®-161 HC
A 2-part, low viscosity multipurpose epoxy resin for priming and levelling concrete and cementitious substrates. Solvent-free with excellent bond strength and short waiting times. Suitable as a primer, bonding bridge, levelling mortar binder, and intermediate layer for Sikafloor®-263 SL HC and Sikafloor®-264 HC flooring systems.
Overview
Specifications
| Property | Value |
|---|---|
| Type | 2-component low viscosity epoxy resin |
| Mixing Ratio | Part A : Part B = 79 : 21 (by weight) |
| Density – Part A | ~1.6 kg/L |
| Density – Part B | ~1.0 kg/L |
| Density – Mixed | ~1.4 kg/L |
| Solid Content | ~100% by mass and volume |
| Shore D Hardness | ~76 (7 days at +23°C) |
| Compressive Strength | ~60 N/mm² (28 days at +23°C) |
| Flexural Strength | ~30 N/mm² (28 days at +23°C) |
| Tensile Adhesion Strength | >1.5 N/mm² (failure in concrete, ISO 4624) |
| Service Temperature | Max. +60°C short-term (7 days) |
| Shelf Life | 24 months from date of production |
| Storage | Dry, +18°C to +30°C, original sealed packaging |
Usage
- Priming concrete substrates, cement screeds, and epoxy mortars
- Low to medium absorbent substrates
- Primer for Sikafloor®-263 SL HC and Sikafloor®-264 HC flooring systems
- Binder for levelling mortars and mortar screeds
- Intermediate layer underneath Sikafloor®-263 SL HC and Sikafloor®-264 HC
Advantages
- Low viscosity with good penetration into substrate
- Excellent bond strength (>1.5 N/mm²)
- Solvent free
- Easy application
- Short waiting times between coats
- Multi-purpose – primer, binder, bonding bridge, and screed
- LEED v4 EQ credit compliant – low-emitting materials
Packaging
- 20 kg set (Part A + Part B)
- 10 kg set (Part A + Part B)
Colour
- Part A (Resin): Brownish-transparent liquid
- Part B (Hardener): Transparent liquid
Product Details
Product Information
| Property | Detail |
|---|---|
| Composition | Epoxy (2-component) |
| Shelf Life | 24 months from date of production |
| Storage Conditions | Dry, +18°C to +30°C, original sealed packaging |
| Solid Content | ~100% by mass and volume |
Technical Information
| Coating System | Product / Mix | Consumption |
|---|---|---|
| Priming | Sikafloor®-161 HC | 0.35–0.55 kg/m² |
| Levelling Mortar / Scratch Coat | 1 pbw Sikafloor®-161 HC + 0.5 pbw quartz sand (0.1–0.3 mm) | 1.7 kg/m²/mm |
| Bonding Bridge | Sikafloor®-161 HC | 0.3–0.5 kg/m² |
| Resin Screed (15–20 mm) | 1 pbw Sikafloor®-161 HC + 8 pbw quartz sand | 2.2 kg/m²/mm |
Pot Life
| Temperature | Pot Life |
|---|---|
| +10°C | ~50 minutes |
| +20°C | ~25 minutes |
| +30°C | ~15 minutes |
Curing & Ready for Use
| Substrate Temp. | Foot Traffic | Light Traffic | Full Cure |
|---|---|---|---|
| +10°C | ~24 h | ~6 days | ~10 days |
| +20°C | ~12 h | ~4 days | ~7 days |
| +30°C | ~8 h | ~2 days | ~5 days |
Application
Application Information
| Parameter | Value |
|---|---|
| Mixing Ratio | Part A : Part B = 79 : 21 (by weight) |
| Ambient Temperature | +10°C min / +30°C max |
| Substrate Temperature | +10°C min / +30°C max |
| Relative Humidity | Max. 80% r.h. |
| Substrate Moisture | <4% pbw (no rising moisture per ASTM polyethylene sheet test) |
| Dew Point | Substrate must be min. 3°C above dew point |
| Layer Thickness (as top coat) | 70–140 microns |
| Layer Thickness (standalone) | 140–275 microns |
Application Steps
- Substrate Requirements: Concrete must have min. compressive strength of 25 N/mm² and pull-off strength ≥1.5 N/mm². Surface must be clean, dry, and free from oil, grease, coatings, and contaminants. Moisture content <4% pbw.
- Substrate Preparation: Mechanically prepare using abrasive blast cleaning, planing, scarifying, or grinding to remove laitance. Grind high spots. Vacuum all dust and loose material. Fill cracks, blowholes, and voids with Sikafloor®, Sikadur®, or Sikagard® products.
- Primer Mixing: Mix Part A for ~30 seconds. Add Part B to Part A. Mix continuously for ~3 minutes at 300–400 rpm until uniform. Pour into a clean container and mix again. Scrape sides and bottom at least once during final mixing.
- Levelling Mortar Mixing: Mix Part A for ~30 seconds. Add Part B. While mixing, gradually add required filler/aggregates. Mix for a further 2 minutes until uniform. Pour into clean container and mix again.
- Standard Primer Application: Pour mixed product onto substrate. Spread evenly with short pile roller or squeegee. Back-roll in two directions at right angles with a fleece roller. Maintain a wet edge. If broadcasting, wait 15–30 minutes then broadcast quartz sand to excess. Vacuum loose sand after hardening.
- Bonding Bridge: Apply with brush, fleece roller, or squeegee. Back-roll in two directions. Apply second coat if required.
- Resin Screed: Pour wet-on-wet onto still-tacky primer. Spread and compact with trowel to required thickness between screed rails. Level with levelling beam. Finish with trowels or power floats.
- Cleaning: Clean all tools immediately with Thinner C. Hardened material can only be removed mechanically.