Sikafloor®-261 CA
SMOOTH FINISH COATING (20 - 30 MIL)
Sikafloor®-261 CA is a two-component, solid colour, high solids, silicone-free, low-viscosity, self-priming, glossy epoxy resin available in an unlimited colour range. Typically installed as a seamless, high build, smooth coating for light to medium duty traffic areas. This general service epoxy coating demonstrates good mechanical and chemical resistance. Final surface appearance options include: unlimited colour selection and integral cove base. Sikafloor®-261 CA is also used as a resin component (primer, binder and top coat) for high performance Sikafloor® Morritex® Systems.
- Good mechanical and chemical resistance
- Glossy aesthetic finish
- Durable, impermeable and seamless
- Easily cleaned and maintained
- Does not support growth of bacteria or fungus
- Neutral odour
- Unlimited colours, no minimum required
- Achieves high performance ratings according to ASTM G21 resistance to fungi and ASTM D3273 resistance to mold growth.
Usage
- Clean rooms and sanitary areas
- Commercial and industrial facilities
- Food service areas
- Institutional and recreational facilities
- Light to medium duty manufacturing areas
- Processing and warehousing
- Retail stores
- Theaters
- Aircraft hangars
Advantages
- Good mechanical and chemical resistance
- Glossy aesthetic finish
- Durable, impermeable and seamless
- Easily cleaned and maintained
- Does not support growth of bacteria or fungus
- Neutral odour
- Unlimited colours, no minimum required
- Achieves high performance ratings according to ASTM G21 resistance to fungi and ASTM D3273 resistance to mold growth.
Packaging
10 L and 30 L (2.6 and 7.9 US gal.) units
Colour
| RAL 7038 Agate Grey |
| RAL 7030 Stone Grey |
| RAL 7046 Telegrey 2 |
| RAL 7012 Basalt Grey |
Custom colours available upon request. Refer to current price list for availability.
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 when stored in original, unopened packaging.
Storage Conditions
Store dry at temperatures between 5 °C to 32 °C (41 °F to 89 °F).
Viscosity
~550 cps (A+B Mixed)
Volatile organic compound (VOC) content
< 50 g/L
Shore D Hardness
| ~76 | (ASTM D2240) |
Abrasion Resistance
| ~0.11 g (~0.0038 oz) CS17/1000 cycles/1000 g (2.2 lb) | (ASTM D4060) |
Resistance to Impact
| ~5.88 joules (~4.33 ft lb) | (ASTM D2794) |
Indentation
| ~8.82 % (returns to profile) | (MIL-PRF-24613) |
Compressive Strength
| ~56 MPa (~8122 psi) | (ASTM D695) |
Tensile Strength
| ~7.4 MPa (~1073 psi) | (ASTM D638) |
Pull-Off Strength
| > 2.5 MPa (> 363 psi) (substrate failure) | (ASTM D7234) |
Coefficient of Thermal Expansion
| ~1.27 x 10-4 mm/mm/°C (~0.70 x 10-4 in/in/°F) | (ASTM D696) |
Coefficient of Friction
| ~0.32 Wet (smooth high gloss) | (ANSI A137.1 / ANSI A326.3) |
| ~0.93 Dry (smooth high gloss) | (DCOF - BOT 3000e) |
Service Temperature
| Minimum 0 °C (32 °F) Maximum 50 °C (122 °F) |
Thermal Compatibility
| Passes | (ASTM C884) |
Water Absorption
| ~0.3 % | (ASTM D570) |
Chemical Resistance
Consult Sika Canada
Microbiological Resistance
| Rated 1 - resistance to fungi (traces growth) | (ASTM G21) |
| Rated 10 - resistance to mold growth (highest resistance) | (ASTM D3273) |
(Special order grade)
Resistance to Fire
| 0 (FSR) Flame Spread Rating 15 (SDC) Smoke Developed Classification | (CAN/ULC S102.2) |
Application
Mixing Ratio
A:B = 2:1 by volume
Product Temperature
Condition product between 18 °C to 30 °C (65 °F to 86 °F) before using.
Ambient Air Temperature
Minimum 10 °C (50 °F) Maximum 30 °C (85 °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 workabitity and slower cure rates.
Relative Air Humidity
Maximum 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. Be aware that the substrate temperature may be lower than the ambient temperature.
Substrate Temperature
Minimum 10 °C (50 °F) Maximum 30 °C (85 °F)
Do not apply while ambient and substrate temperatures are rising, as pinholes may occur. Ensure there is no vapour drive at the time of application. Refer to ASTM D4263, may be used for a visual indication of vapour drive.
Substrate Moisture Content
Moisture content of concrete substrate must be ≤ 4 % by mass (pbw – part by weight) as measured with a Tramex®CME / CMExpert type concrete moisture meter on mechanically prepared surface according to this product data sheet (preparation to ICRI / CSP 3 - 4). Do not apply to concrete substrate with moisture levels exceeding 4 % mass (pbw – part by weight) as measured with Tramex® CME / CMExpert type concrete moisture meter. If moisture content of concrete substrate exceeds 4 % by mass (pbw – part by weight) as measured with Tramex® CME / CMExpert type concrete moisture meter, use Sikafloor®-1610 or Sikafloor®-81 EpoCem®CA or Sikafloor® 22NA or 24NA PurCem®.
When relative humidity tests for concrete substrate are conducted per ASTM F2170 for project specific requirements, values must be ≤ 85 %. If values exceed 85 % according to ASTM F2170, use Sikafloor®-1610 or Sikafloor®-81 EpoCem®CA or Sikafloor® 22NA or 24NA PurCem®. ASTM F2170 testing is not a substitute for measuring substrate moisture content with a Tramex® CME / CMExpert type concrete moisture meter as described above.
Pot Life
| 250 g (8.8 oz) | 10 °C (50 °F) | 20 °C ( 68 °F) | 30 °C (86 °F) |
| Open time in pot | ~60 minutes | ~40 minutes | ~15 minutes |
| Open time on substrate | ~80 minutes | ~50 minutes | ~35 minutes |
Curing Time
| 10 °C (50 °F) | 20 °C (68 °F) | 30 °C (86 °F) | |
| Foot traffic | ~2 days | ~1 day | ~18 hours |
| Light traffic | ~4 days | ~2 days | ~2 days |
| Full Cure | ~10 days | ~7 days | ~5 days |
Curing times will vary according to air and substrate temperature and relative humidity.
Protect from dampness, condensation and water contact during the initial 24 hour cure period.
Mechanical, chemical and physical properties will be fully achieved at full cure.
Waiting Time / Overcoating
| 10 °C (50 °F) | 20 °C (68 °F) | 30 °C (86 °F) | |
| Minimum | ~30 hours | ~8 hours | ~6 hours |
| Maximum | ~72 hours | ~48 hours | ~24 hours |
Note: If the Waiting / Overcoating Time has passed, the previous coat must be lightly sanded, to remove all gloss; vacuum cleaning and solvent wiping will be necessary to remove all traces of dust. The surface should be a uniform dullness, with no gloss present after clean-up and before applying the next coat.
Consumption
| Prime coat | 5 m2/L - 8 m2/L (200 ft2/US gal.- 325 ft2/US gal.) at 5 mil - 8 mil w.f.t. |
| Wear coat | 1.6 m2/L - 3.3 m2/L (65 ft2/US gal.- 135 ft2/US gal.) at 12 mil - 25 mil w.f.t. |
| Refresher coat | Apply at the same rate as wear coat |
Actual coverage rates and material consumption will depend upon porosity and profile of substrates. Allowance must be also made for variation in film thickness or number of coats required to achieve opacity with light (i.e. white) or bright colours (i.e. reds and yellows) on dark substrates. Test sections are recommended to establish correct coverage.
MIXING
Mix Ratio: A:B 2:1 by volume
Do not hand mix Sikafloor® materials. Mechanically mix only.
Pre-mix each component separately. Empty component B in the correct mix ratio to component A. Mix the combined components for at least three (3) minutes, using a low-speed drill (300 - 450 rpm) to minimize entrapping air. Use an Exomixer® or Jiffy type mixing paddle (recommended model) suited to the volume of the mixing container. 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®-261 CA should be uniform in colour and consistency. Mix only that quantity which can be used within its pot life.
APPLICATION
Prime Coat: Apply the Sikafloor®-261 CA as a prime coat onto the substrate using a brush, roller or squeegee, at a uniform coverage without puddling.
Wear Coat: Once the prime coat is tack free, apply the wear coat using a squeegee or roller and backroll to achieve even coverage.
CLEAN UP
Clean all tools and equipment with Sika® Epoxy Cleaner. Once hardened, product can only be removed mechanically.
