Sikaflex®-15 LM 20 oz Sausage – Low Modulus Polyurethane Sealant

Sikaflex-15 LM is a high-performance, low-modulus, 1-component polyurethane sealant designed for demanding construction and facade applications. This non-sag elastomeric sealant offers exceptional movement capability, strong adhesion to a wide range of substrates, and long-term weather resistance for vertical and horizontal joint applications.

Ideal for commercial construction, EIFS systems, concrete panels, window and door perimeters, flashing details, and high-movement facade joints, Sikaflex®-15 LM cures to a durable, flexible consistency with outstanding cut and tear resistance.

FEATURES

• Low modulus formulation provides excellent flexibility and stress relaxation
• High movement capability rated at +100/-50% per ASTM C719
• 1-component polyurethane sealant ready to use with no mixing required
• Non-sag consistency ideal for vertical and sloped applications
• Excellent adhesion to most construction materials without primer
• Weather resistant performance proven in harsh climates worldwide
• Paintable surface after cure
• Jet fuel resistant formulation
• Non-leaching polyurethane technology
• EIFS compatible and tested in accordance with ASTM C1382
• UL fire-rated joint systems available for select assemblies

TYPICAL APPLICATIONS

• Concrete expansion and control joints
• Precast concrete panel systems
• Window and door perimeter sealing
• Reglets and flashing terminations
• Roofing detail applications
• EIFS joints and transitions
• High-rise facade movement joints
• Similar and dissimilar material joints

SPECIFICATIONS

• Product type: Polyurethane elastomeric sealant
• Consistency: Non-sag
• Modulus: Low modulus
• Packaging: 20 fl oz sausage
• Pack quantity: 20 sausages per box
• Movement capability: +100/-50%
• Tack-free time: 2–6 hours
• Final cure: 7–10 days
• Application temperature: 40°F to 100°F
• Storage temperature: 40°F to 95°F
• Shelf life: 18 months unopened

STANDARDS & COMPLIANCE

• ASTM C920, Type S, Grade NS, Class 100/50
• Federal Specification TT-S-00230C, Type II, Class A
• Federal Specification TT-S-001543A, Type Non-Sag
• ASTM C1382 tested for EIFS applications
• UL Fire Rated Joint Systems compatible

AVAILABLE COLORS

• White
• Colonial White
  
• Off-White
• Black
• Almond
• Medium Bronze
• Redwood Tan
• Stone

STORAGE & HANDLING

Store unopened material in dry conditions protected from direct sunlight between 40°F and 95°F. Condition material to 65°F–75°F before application for best performance.

20 OZ SAUSAGE – YIELD IN LINEAR FEET