Sikaflex 15LM, Coping Stone, Low-Modulus Elastomeric Sealant, 300ml Cartridge

Sika Corporation
Item #
Mfr. Model # 442180

Sikaflex 15LM, Coping Stone, Low-Modulus Elastomeric Sealant, 300ml Cartridge

Sikaflex-15 LM is a low-modulus, high-performance, 1-component, polyurethane-based, non-sag elastomeric sealant. Meets Federal Specification TT-S-00230C, Type II, Class A; ASTM C-920, Type S, Grade NS, Class 100/50, use T, NT, G, A, O, M; Federal Specification for silicones - TT-S-001543 A, Type non-sag. Tested in accordance with ASTM C-1382 for use in EIFS systems.


  • Excellent for moving joints in vertical applications.
  • Suitable for use between similar as well as dissimilar materials.
  • Typical applications include joints in concrete panel and wall systems, around window and door frames, reglets, flashing, common roofing detail applications, etc.
  • Exceptional sealant choice for high-rise and facade applications where high movement capability is required.
  • An effective sealant for use in Exterior Insulation Finish Systems (EIFS).


  • Low modulus of elasticity.
  • Easy and ready to use.
  • Eliminates time, effort, waste, and equipment clean-up.
  • Cures to a durable, flexible consistency.
  • Exceptional cut and tear resistance.
  • Stress relaxation properties.
  • Excellent adhesion.
  • Bonds to most construction materials without a primer.
  • Paintable with water-, oil- and rubber-based paints.
  • Excellent resistance to aging, weathering.
  • Jet fuel resistant.
  • Proven in tough climates around the world.
  • Non-leaching.
  • Capable of +100% / -50% joint movement.
  • Two-hour UL fire rating when used with Ultra Block®

Case Quantity: 24 Cartridges

Product Details
Specification Description
# of Components: Single Component
Adhesive/Glue Type: Caulks & Sealants
Brand Name: Sika Corporation
Brand Part Number: 442180
Chemical Base: Polyurethane
Color: Coping Stone
Cure Mechanism: Moisture
Cure Time: 7 - 10 Days
Elongation: 700%
For Joint Type: Vertical
Grade (ASTM C-920): NS - Non-Sag
Model: Sikaflex 15LM
Movement Capability: + 100 / - 50%
Operating Temperature: -40° to 170°F
Package Type: Cartridge
Paintable: Yes
Peel Strength: Aluminum 25 lb., Concrete 30 lb., Glass 25 lb.
Primary Application: Construction & Concrete
Shelf Life: 365 days
Shore Hardness: 25A
Size: 300 ml
Specifications Met: ASTM C-1382, ASTM C-920 Type S Grade NS Class 100/50 Use T/NT/M/G/A/O, TT-S-001543A Type Non-Sag, TT-S-00230C Type II Class A, UL Fire Rated 2 HR
Temperature Rating: Standard (Less Than 200°F)
Tensile Strength: 50 psi
Use (ASTM C-920): A - Aluminum, G - Glass, M - Mortar, NT - Non-Traffic, O - Other, T - Traffic
VOC Content Range: 32.7 g/L
Working/Tack/Skin Time: 2 - 6 Hours
$6.70 / each
  • 48+ for $6.55 / each
  • 144+ for $6.36 / each

Must order in increments of 24 units
22 units in stock. Estimated to ship Wed. Jun 19 Need more? Estimated to ship Mon. Jul 08.