Sika Sikaflex-291i black polyurethane sealant, 70 ml cartridge. Flexible, durable seal for construction joints and gaps on concrete, metal, wood, and plastic.
The Sika Sikaflex-291i is a single-component polyurethane sealant designed for bonding and sealing a wide range of building and construction materials.
Creates a durable, flexible seal that accommodates movement in joints and connections
Adheres to common substrates including concrete, metal, wood, and plastics without primer
Black colour provides a discreet finish on dark surfaces and tinted glazing
70 ml cartridge format suits precision application in tight gaps and narrow joints
Das zeichnet Sikaflex-291i aus
As a dedicated construction sealant from Sika, the Sikaflex-291i combines high initial adhesion with long-term elasticity. The black formulation is specifically suited to architectural applications where a neutral, low-profile appearance is required alongside reliable weather resistance.
Ideal for...
Building contractors and DIY installers working on facade joints, window frames, roof edges, and expansion joints in concrete and masonry. Suitable for both interior and exterior use where a durable, flexible seal is needed.
Anwendung von Sikaflex-291i
Clean the substrate thoroughly — free of dust, grease, and loose particles
Apply the sealant in a continuous bead along the joint or gap
Tool the bead smooth with a spatula or finger to ensure full contact and an even finish
Allow to cure according to ambient conditions — typically skin-over in 30 minutes and fully cured within 24 hours
Sika is a Swiss-based specialty chemicals company with a global presence in construction and industry. The brand supplies adhesives, sealants, and protective products for building, infrastructure, and manufacturing applications.
It is a polyurethane sealant for bonding and sealing joints in building construction — including facade joints, window frames, roof edges, and expansion joints in concrete, masonry, metal, and wood.
It adheres to common construction substrates such as concrete, masonry, metal, wood, and many plastics without requiring a primer.
Product type: polyurethane sealant. Colour: black. Volume: 70 ml. Weight: 0.12 kg. Shelf life: 0 months (use immediately upon receipt).
One 70 ml cartridge of Sika Sikaflex-291i black sealant.
Store in a cool, dry place away from direct sunlight. Keep the cartridge sealed when not in use. Use the product promptly as the shelf life is limited.
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