Sikaflex®-2c NS EZ Mix

• Conformity with LEED^® v4 MR Credit (option 1): Building Product Disclosure and Optimization - Material Ingredients
• Conformity with LEED^® v4 IEQ Credit: Low-Emitting Materials
• Conformity with LEED^®v4 MR Credit (Option 1): Building Product Disclosure and Optimization - Sourcing of Raw Materials

• 2-hour UL Fire Rated Joint System Nos. FF-S-1034, FW-S-1020, HW-S-1018, WW-S-1037

• ANSI/NSF Standard 61 approved for potable water contact

• Meets ASTM C920, Type M, Grade NS, Class 25, use T, NT, M, G, A, O

• Meets Federal Specification TT-S-00227E, Type II, Class A

• Meets Federal Specification TT-S-001543A

• Meets Federal Specification TT-S-00230C

• Meets CAN/CGSB 19.24 - M90

• USDA approved

• Canadian Food Inspection Agency (CFIA) acceptance

• Ministry of Transport Québec (MTQ) acceptance

• UL certified to CAN/ULC-S115-05: Standard Method of Firestop Systems and to ANSI/UL 2070: Fire Resistance of Building Joint Systems (FF-S-1034, FW-S-1020, HW-S-1018, WW-S-1037) for use in Canada

   

1 year in original, unopened packaging.

Store dry at temperatures between +4 °C and +35 °C (39 °F and 95 °F). Condition product between +18 °C and +24 °C (65 °F and 75 °F) before using.

< 64 g/L

-40 °C to +77 °C (-40 °F to 170 °F)

Good resistance to water, diluted acids, diluted alkalines, and residential sewage. Consult Sika Canada for specific data.

+4 °C to +38 °C (39 °F to 100 °F)

+4 °C to +38 °C (39 °F to 100 °F)

Sealant should be installed when joint is at mid-range of its anticipated movement.

Linear Metre of Sealant per Litre

All joint surfaces must be clean, sound, dry and frost-free. Joint walls must be free of oils, tar, asphalt, bitumen, grease, paints, coatings, sealers, curing compound residues, and any other foreign matter that might prevent adhesion. Ideally this should be accomplished by mechanical means. Bond breaker tape or backer rod must be used in bottom of joint to prevent bond.

Priming

Priming is typically not necessary. Most substrates only require priming if sealant will be subjected to water immersion after cure. Testing should be done, however, on questionable substrates, to determine if priming is needed. Contact Sika Canada or consult Sikaflex® Primers Product Data Sheet for additional information on priming.

Note: Most Exterior Insulation Finish Systems (EIFS) manufacturers recommend the use of a primer. When EIFS manufacturer specifies a primer or if on-site bond testing indicates a primer is necessary, Sikaflex®-429 Primer is recommended. On-site adhesion testing is recommended with final system prior to the start of a job.

Pour entire contents of Component B into pail of Component A. Add entire contents of Color-pak into pail and mix with a low-speed drill (400 - 600 rpm) and proper mixing paddle. Mix for three (3) to five (5) minutes to achieve a uniform colour and consistency. Scrape down sides of pail periodically. Avoid entrapment of air during mixing.

  
Note: When mixing in cold weather < +10 °C (50 °F), do not force the mixing paddle to the bottom of the pail. After adding Component B and Color-pak into Component A, mix the top 1/2 to 3/4 of the pail during the first minute of mixing. After scraping down the sides of the pail, mix again for another minute. The paddle should reach the bottom of the pail between the first and second minute of mixing. Scrape down the sides of the pail a second time and then mix for an additional two (2) to three (3) minutes until the sealant is well blended. When using Sikaflex®-2c Booster, add entire contents into Component A prior to mixing.

  
Note: When mixing 11.4 L (3 US gal.) unit, two containers of Component B and two Color-paks must be used. Colorpak must be used with tint base. For pre-pigmented Limestone, just mix with low speed drill and Sikaflex® paddle (no Color-pak needed).

Uncured material can be removed from equipment and tools using Sika® Urethane Thinner and Cleaner. Cured material can only be removed manually or mechanically.