Sikafloor®-161
VERSATILE EPOXY RESIN FOR PRIMING
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Sikafloor®-161 is a two part, epoxy resin use for priming.
- Low VOC
- Excellent penetration and adhesion
- Easy application
- Short recoat times
- Multi-purpose use
- 100 % solids as supplied
Usage
Sikafloor®-161 is designed as a primer for Sikafloor epoxy and urethane coatings, as well as for broadcast and troweled systems. When used as a primer Sikafloor®-161 can be considered where ≤4 % moisture content by mass (pbw – part by weight) is measured on concrete substrate with Tramex® CME/CMExpert type concrete moisture meter.Advantages
- Low VOC
- Excellent penetration and adhesion
- Easy application
- Short recoat times
- Multi-purpose use
- 100 % solids as supplied
Packaging
| Component A: 3.0 US gal. (11.4 L) | Component A: 50 US gal. (189 L) (2 units needed) |
| Component B: 1.5 US gal. (5.7 L) | Component B: 50 US gal. (189 L) |
| Components A+B: 4.5 US gal. (17 L) | Components A+B: 150 US gal. (568 L) |
(Ready to mix unit)
Color
Gray transparent after mixing
Product Details
Shelf Life
2 years in original unopened container under proper storage
Storage Conditions
The product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between 41 °F (5 °C) and 86 °F (30 °C).
Solid content by volume
~100 %
Volatile organic compound (VOC) content
62 g/L (A+B Combined)
Shore D Hardness
| 82 | ASTM D2240 at 73°F (23°C) and 50% R.H |
Abrasion Resistance
| CS-17/1,000 cycles/1,000 g -0.110g H-22/1,000 cycles/1,000 g -90 mg | ASTM D4060 at 73°F (23°C) and 50% R.H |
Compressive Strength
| 7,426 psi (51.2 MPa) | ASTM C695 at 73°F (23°C) and 50% R.H |
Flexural Strength
Flexural Strength
| 8,558 psi (59.0 MPa) | ASTM D790 at 73°F (23°C) and 50% R.H |
Flexural Modulus of Elasticity
| 8.34 x 105 psi (5,750 MPa) | ASTM D790 at 73°F (23°C) and 50% R.H |
Tensile Strength
| 4,902 psi (33.8 MPa) | ASTM C638 at 73°F (23°C) and 50% R.H |
Tensile Adhesion Strength
| > 400 psi (2.7 MPa) (100 % concrete failure) | ASTM D454 at 73°F (23°C) and 50% R.H |
Impact Strength
| 0.26 ft/lb (0.35 j) | ASTM D2794 at 73°F (23°C) and 50% R.H |
Chemical Resistance
Please consult Sikafloor Technical Services.
Thermal Resistance
| 9.0 g/m2 (24 hours) | ASTM E96 at 73°F (23°C) and 50% R.H |
Water Absorption
| 0.14 g/h - m2 | ASTM D570 at 73°F (23°C) and 50% R.H |
Application
Mixing Ratio
2 : 1 by volume
Pot Life
| Material Temperature | Time |
| 50 °F (10 °C) | ~ 50 minutes |
| 68 °F (20 °C) | ~ 25 minutes |
| 86 °F (30 °C) | ~ 15 minutes |
Cure Time
| Ambient & Substrate Temperature | Foot traffic | Light traffic | Full cure |
| 50 °F (10 °C) | ~ 24 hours | ~ 3 days | ~ 10 days |
| 68 °F (20 °C) | ~ 12 hours | ~ 2 days | ~ 7 days |
| 86 °F (30 °C) | ~ 8 hours | ~ 1 days | ~ 4 days |
Waiting / Recoat Times
Before applying second coat Sikafloor®-161 on Sikafloor®-161 allow:
| Ambient & Substrate temperature | Minimum | Maximum |
| 50 °F (10 °C) | 24 hours | 36 hours |
| 68 °F (20 °C) | 8 hours | 24 hours |
| 86 °F (30 °C) | 6 hours | 18 hours |
Before applying Sikafloor Epoxy or Polyurethane on Sikafloor®-161 allow:
| Ambient & Substrate temperature | Minimum | Maximum |
| 50 °F (10 °C) | 24 hours | 72 hours |
| 68 °F (20 °C) | 8 hours | 48 hours |
| 86 °F (30 °C) | 6 hours | 24 hours |
Times are approximate and will be affected by changing ambient conditions particularly temperature and relative humidity.
Coverage
160–266 ft2 / US gal (3.9–6.5 m2 / L) at 6–10 mils (0.15–0.25 mm) wet film thickness (w.f.t.).
MIXING
Mixing Ratio - 2 : 1 by volume.
For bulk packaging, when not mixing full units, each component must be pre-mixed separately to ensure product uniformity.
Primer and Intermediate:
Premix each component separately. Empty Component B (Hardener) in the correct mix ratio into Component A (Resin). Mix the combined components for at least 3 minutes using a low speed drill (300–450 rpm) and Exomixer or Jiffy type paddle suited to the volume of the mixing container to minimize entrapped air. Be careful not to introduce any air bubbles while mixing. Make sure the contents are completely mixed to avoid any weak or partially cured spots in the coating. During the mixing operation, scrape down the sides and bottom of the container with a flat or straight edge trowel at least once to ensure complete mixing.
Do not mix more material than can be applied within the working time limits (i.e. Pot Life) at the actual field temperature.
APPLICATION
Apply primer by squeegee at the rate of 160–266 ft2 / US gal (3.4 – 6.5 m2 / L) at 6–10 mils (0.15–0.25 mm) wet film thickness (w.f.t.) and back roll with pressure after 15 minutes. Coverage will vary depending on the porosity of the prepared floor. Product has a limited Pot Life, see Typical Data. Do not apply by dipping roller into mixing container. Pour a bead of product in the form of a ribbon on the surface to be coated, then spread with squeegee and back roll. Ensure that the coating is pore-free and pinhole-free and provides uniform and complete coverage over the entire concrete substrate. If necessary, apply an additional coat to ensure the coating is pore-free and pinhole-free and provides uniform and complete coverage over the entire concrete substrate.