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Sika Sikaflex-2c NS Limestone Color Pack

Brand: Sika Mfg#: 91178
Product#: 438420167
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Sikaflex-2c NS 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, I and Federal Specification TT-S-0022


  • Non-sag even in wide joints
  • Adheres to most substrates commonly found in construction
  • Paintable with water-, oil-, and rubber-base paints
  • Placeable at temperatures as low as 40°F
  • Jet fuel resistant
  • Exceptional cut and tear resistance and can adhere to most substrates without priming
  • An effective sealant for use in Exterior Insulation Finish Systems (EIFS)
  • Color uniformity assured via Color-pak system
  • High elasticity with a tough, durable, flexible consistency
  • Intended for use in all properly designed working joints with a minimum depth of 1/4 inch
  • Ideal for vertical and horizontal applications
  • Capable of ±50% joint movement


  • Brand: Sika
  • Product Line: Sikaflex-2c NS
  • Composition: Polyisocyanate Prepolymer, Xylene
  • Odor/Scent: Aromatic
  • Resists: Chemicals
  • Application Temperature: 40 - 100 deg F
  • Flash Point: 230 deg F Part A, 112 deg F Part B
  • Color: Limestone
  • Application Method: Spray
  • Specific Gravity: 1.55 Part A, 1.02 Part B
  • Functional Cure: 3 days
  • Base Type: Polyurethane
  • Coverage: 231 cu-in/gal
  • Mixing Style: Nozzle
  • Temperature Range: -40 TO 170 deg F
  • Drying Time: 6 - 8 days Tack Free
  • Standards: ASTM C920
  • Form: Solid Part A, Liquid Part B
  • VOC Content: 19 g/l Part A, 92 g/l Part B
  • Shore Hardness: 25 +/-5 Shore A
  • Type: 2-Part, Premium Grade
  • Application Time: 3 - 4 hr
  • Media: Carbon Dioxide, Foam
  • Flammability Rating: 1 Part A, 2 Part B
  • Usage: For All Types of Joints