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Sika Sikaflex-102 EverFlash Membrane 20oz Sausage
This multi-purpose material is based on a special moisture-cured polyurethane that offers an accelerated curing time. One-component, gun-grade, window and door flashing, sealing and adhering compound.
Sika Sikaflex-102 EverFlash Membrane is a one-component, moisture-cured polyurethane-based sealant designed for window and door flashing, sealing, and adhesion applications. This high-performance gun-grade membrane provides excellent weather resistance, UV stability, and long-term durability. Sikaflex-102 EverFlash is ideal for use in perimeter rough openings, structural joints, and other critical building envelope applications. With an accelerated curing system, it enables same-day installation of windows and doors, reducing construction time and ensuring superior adhesion to a wide range of materials.
Key Features:
Fast-curing formula – allows for same-day window and door installation
Excellent weathering and water resistance for long-term protection
UV stable and non-corrosive
Compatible with Sikasil WS295, Sikasil WS290, Sikaflex 1a, Sikaflex 15LM, and SikaHyflex 150LM
Single-source system warranty when used with Sikaflex or SikaHyflex perimeter sealants
Excellent adhesion to a variety of materials including concrete, wood, metal, glass, and ceramics
Can be painted over with water, oil, and rubber-based paints
Meets ASTM C920 Class 25 for high-movement joints
Applications:
Sealing perimeter rough openings for windows and doors
Flashing and sealing exterior window and door nailing flanges
Adhering floor moldings and door sills
Sealing sheathing joints in wall assemblies
Waterproofing CMU, poured-in-place, and precast concrete structures
Gasket sealing around wall and floor penetrations for ducts and piping
Technical Specifications:
Property
Value
Packaging
20 oz sausage
Color
White
Shelf Life
12 months (unopened, stored properly)
Shore A Hardness
40-45 (ASTM D-2240)
Tensile Strength
225 psi (ASTM D-412)
Elongation at Break
600% (ASTM D-412)
Elastic Recovery
90%
Service Temperature
-40°F to 170°F (-40°C to 75°C)
Frequently Asked Questions:
Can Sikaflex-102 EverFlash be used for direct stucco applications? Yes, it can be used with direct-applied stucco systems, provided sand is broadcast immediately after application to improve adhesion.
How long does it take to cure? It becomes tack-free in 1-2 hours and reaches full cure in 3-5 days, depending on climate conditions.