Sikaflex 2C NS EZ Mix 2-Part Polyurethane Elastomeric Sealant Limestone 1.5 Gallon

Sika Corporation
Item #
Mfr. Model # 187658

Sikaflex 2C NS EZ Mix 2-Part Polyurethane Elastomeric Sealant Limestone 1.5 Gallon

Sikaflex-2c NS EZ Mix is a 2-component, premium-grade, polyurethane-based, elastomeric sealant. It is principally a chemical cure in a non-sag consistency. Meets ASTM C-920, Type M, Grade NS, Class 25, use T, NT, M, G, A, O and Federal Specification TT-S-00227E, Type II, Class A. Meets CAN/CGSB 19.24 - M90.


  • Intended for use in all properly designed working joints with a minimum depth of a quarter inch.
  • Ideal for vertical and horizontal applications.
  • Placeable at temperatures as low as 40F.
  • Adheres to most substrates commonly found in construction.
  • An effective sealant for use in Exterior Insulation Finish Systems (EIFS).
  • Submerged environments, such as canal and reservoir joints

Characteristics and Advantages:

  • Capable of +50% joint movement.
  • Chemical cure allows the sealant to be placed in joints exceeding .5 in. in depth.
  • High elasticity with a tough, durable, flexible consistency.
  • Exceptional cut and tear resistance.
  • Exceptional adhesion to most substrates without priming.
  • Non-sag even in wide joints.
  • Certified to the NSF/ANSI Standard 61 for potable water.
  • Easy to mix.
  • Paintable with water-, oil-, and rubber-base paints.
  • Jet fuel resistant.
  • Cold weather booster for initial tack (see reverse side for data).
  • Shore A hardness can be increased by using “TG” additive. 

Product Details
Specification Description
# of Components: Two Component
Adhesive/Glue Type: Caulks & Sealants
Brand Name: Sika Corporation
Brand Part Number: 187658
Chemical Base: Polyurethane
Color: Limestone
Cure Mechanism: Moisture
Cure Time: 3 Days
Elongation: 300%
For Joint Type: Horizontal & Vertical
Grade (ASTM C-920): NS - Non-Sag
Model: Sikaflex 2c NS EZ Mix
Movement Capability: +/- 50%
Operating Temperature: -40° to 170°F
Package Type: Pail
Paintable: Yes
Peel Strength: Concrete 15 lb.
Primary Application: Construction & Concrete
Shelf Life: 365 days
Shore Hardness: 25A +/- 5A
Size: 1.5 Gallon
Specifications Met: ASTM C-920 Type M Grade NS Class 25 Use T/NT/M/G/A/I/O, CAN/CGSB 19.24 - M90, NSF/ANSI 61, TT-S-00227E Type II Class A, UL Fire Rated 2 HR
Tear/Shear Strength: 45 lb/in
Temperature Rating: Standard (Less Than 200°F)
Tensile Strength: 95 psi
Use (ASTM C-920): A - Aluminum, G - Glass, I - Immersed, M - Mortar, NT - Non-Traffic, O - Other, T - Traffic
VOC Content Range: 75 g/L
Working/Tack/Skin Time: 8 - 10 Hours
$62.74 / each

6 units in stock. Estimated to ship Tue. Jun 18 Need more? Estimated to ship Fri. Jul 05.
This item has been restricted for sale in the following states: AK, HI, PR If shipping to a state with restrictions, please call for shipping options.