Sikafloor®-156 CA
Sikafloor®-156 CA is a two-component, solvent-free, low-viscosity, high-strength, epoxy resin, used as an epoxy primer and binder for Sikafloor® Systems.
- Low viscosity ensures excellent penetration and adhesion
- User friendly mix ratio = 3:1 (parts by volume)
- High mechanical resistance
- Low VOC content, neutral odour
Usage
- Primer and adhesion promoter for Sikafloor® epoxy and polyurethane floors
- Binder for epoxy mortar screeds
- Bonding Sika® mortars to various substrates
Advantages
- Low viscosity ensures excellent penetration and adhesion
- User friendly mix ratio = 3:1 (parts by volume)
- High mechanical resistance
- Low VOC content, neutral odour
Packaging
Component A: 22.5 L (5.94 US gal)
Component B: 7.5 L (1.98 US gal)
Components A+B: 30 L (7.9 US gal) unit
Colour
Clear amber
Product Details
ENVIRONMENTAL INFORMATION
- Conformity with LEED®v4 MR Credit (Option 1): Building Product Disclosure and Optimization – Environmental Product Declarations.
- Conformity with LEED®v4 EQ Credit: Low-Emitting Materials
- Conformity with LEED®v4 MR Credit (Option 2): Building Product Disclosure and Optimization - Material Ingredients
- Conformity with LEED®v4 MR Credit (Option 2): Building Product Disclosure and Optimization - Sourcing of Raw Materials
APPROVALS / CERTIFICATES
- Meets the requirements of CFIA and USDA for use in food plants.
Shelf Life
2 years in original unopened packaging.
Storage Conditions
Store dry between 5 °C to 32 °C (41 °F to 89 °F). Condition product at temperatures between 18 °C to 30 °C (65 °F to 86 °F) before using.
Volatile organic compound (VOC) content
~23.5 g/L
Viscosity
A+B: ~260 cps (mixed)
Shore D Hardness
| ~83 | (ASTM D2240) |
Abrasion Resistance
| ~0.15 g (~0.0053 oz) CS17/1000 cycles/1000 g (2.2 lb) | (ASTM D4060) |
Resistance to Impact
| ~3.39 joules (~2.5 ft.lb) | (ASTM D2794) |
Compressive Strength
| ~41 MPa (~5946 psi) | (ASTM D695) |
Tensile Strength
| ~36 MPa (~5221 psi) | (ASTM D638) |
Pull-Off Strength
| > 2.5 MPa (> 363 psi) (substrate failure) | (ASTM D7234) |
Chemical Resistance
Consult Sika Canada
Temperature Resistance
Thermal Compatibility:
| Passes | (ASTM C884) |
Coefficient of Thermal Expansion:
| ~1.27 x 10-4 mm/mm/°C (~0.70 x 10-4 in/in/°F) | (ASTM D696) |
Heat Deflection Temperature:
| ~37 °C (~98.6 °F) | (ASTM D648) |
Flammability:
| ~55 mm (~2.17 in) | (ASTM D635) |
Indentation
| ~7.14 % | (MIL-PRF-24613) |
Service Temperature
Minimum: 0 °C (32 °F) Maximum: 50 °C (122 °F)
Water Absorption
| ~0.3 % | (ASTM C413) |
Application
Mixing Ratio
A:B = 3:1 by volume
Product Temperature
Condition product at temperatures between 18 °C to 30 °C (65 °F to 86 °F) before using.
Ambient Air Temperature
Minimum: 10 °C (50 °F) Maximum: 30 °C (86 °F).
Mixing and application attempted at material, ambient and/or substrate temperature conditions less than 18 °C (65 °F) will result in a decrease in product workability and slower cure rates.
Relative Air Humidity
Maxiumum 85 % (during application and curing).
Dew Point
Substrate must be at least 3 °C (5 °F) above the Dew Point to reduce the risk of condensation, which may lead to adhesion failure or "blushing" on the floor finish.
Substrate Moisture Content
Moisture content of concrete substrate must be ≤ 4 % (pbw – part by weight) as measured with a Tramex® CME/CMExpert type concrete moisture meter.
Pot Life
| 250 g (8.8 oz) | 10 °C (50 °F) | 20 °C (68 °F) | 30 °C (86 °F) |
| Open time in pot | - | ~40 (minutes) | - |
| Open time on substrate | ~70 (minutes) | ~45 (minutes) | ~40 (minutes) |
Curing Time
| 10 °C (50 °F) | 20 °C (68 °F) | 30 °C (86 °F) | |
| Foot traffic | ~24 (hours) | ~12 (hours) | ~6 (hours) |
| Light traffic | ~5 (days) | ~3 (days) | ~2 (days) |
Protect from dampness, condensation and water contact during the initial 24 hour cure period.
Waiting Time / Overcoating
| 10 °C (50 °F) | 20 °C (68 °F) | 30 °C (86 °F) | |
| Minimum | ~24 hours | ~8 hours | ~5 hours |
| Maximum | ~96 hours | ~48 hours | ~24 hours |
Applied Product Ready for Use
| 10 °C (50 °F) | 20 °C (68 °F) | 30 °C (86 °F) | |
| Full Cure / Chemical Exposure | ~10 days | ~7 days | ~5 days |
Consumption
4 m2/L (160 ft2/US gal.) (10 mil w.f.t.)
(Optional: thicken with Sikafloor® Extender T or Quartz flour)
SUBSTRATE QUALITY
Concrete surfaces must be clean and sound. The compressive strength of the concrete substrate should be at least 25 MPa (3625 psi) at 28 days and a minimum of 1.5 MPa (217 psi) in tensile strength, at the time of the application.
Substrates must be free of contaminants such as dust, dirt, existing paint films, efflorescence, exudates, laitance, form, hydraulic or fuel oils, brake fluid, grease, fungus, mildew, biological residues or any other contaminants which may prohibit good bond or conditions of the substrate that may reduce the overall performances of Sikafloor®-156 CA.
MIXING
Mixing Ratio A:B = 3:1 by volume
Do not hand mix Sikafloor® materials. Mechanically mix only. Do not thin this product with water or solvent.
For part unit mixing, i.e. when not mixing full units, each component must be pre-agitated separately to ensure product uniformity. Do not allow mixed material to stand and settle. Failure to pre-stir and keep product agitated will result in variation in gloss levels appearance and performance.
Pre-stir Components A and B separately, making sure all solids, are evenly distributed and uniform consistencies are achieved within each individual Component. Empty Component B (Hardener) in the correct mix ratio into Component A (Resin) or empty Component A into a suitably sized and clean pail and add Component B in the correct ratio. Blend the combined components thoroughly at low speed (300 - 450 rpm) for at
least three (3) minutes using a drill fitted with an Exomixer® or Jiffy type paddle suited to the dimensions of the mixing container and keep the mixing paddle in the mix to minimize entrapped air. Take care 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. When completely mixed, Sikafloor®-156 CA should be uniform in appearance and consistency. Mix only that quantity which can be used within its pot life at actual field temperature.
APPLICATION
Apply the primer to the prepared surface using a squeegee and back roll to provide uniform coverage. Avoid ponding.
CLEAN UP
Clean all tools and equipment with Sika® Epoxy Cleaner. Once hardened, product can only be removed mechanically.
