Product Overview

SikaBond AT-Universal is a one-component, moisture-curing, elastic adhesive and sealant from Sika designed for structural and semi-structural bonding of diverse construction materials in building, facade, fit-out, and infrastructure applications. Based on modified polyurethane chemistry, SikaBond AT-Universal cures by reaction with atmospheric moisture after application from a standard cartridge gun, forming a permanently flexible, elastic, and waterproof bond between two substrates. The elastic nature of the cured adhesive — it remains flexible across a wide service temperature range — is a critical advantage over rigid adhesives (such as epoxy) in construction bonding applications where differential thermal movement between dissimilar materials (e.g., aluminium cladding panels bonded to a concrete subframe, or ceramic tiles on a steel structure) would crack a rigid adhesive bond. SikaBond AT-Universal accommodates this differential movement in the adhesive layer without debonding or cracking, maintaining the bond line integrity over the service life of the building. It bonds without primers to a wide range of materials including concrete, masonry, ceramic tile, granite and stone, painted steel, aluminium, wood (MDF, plywood, hardwood), rigid PVC, glass, and many other substrates commonly encountered in Indian construction and fit-out work. The one-component cartridge format makes SikaBond AT-Universal very easy to use on site without mixing equipment — the operative simply loads the cartridge into a standard mastic gun and applies a bead or pattern of adhesive to one substrate before pressing the two surfaces together and maintaining contact pressure until the adhesive grabs. Space Arc Engineering supplies SikaBond AT-Universal for facade contractors, fit-out teams, precast concrete manufacturers, and structural glazing applicators throughout Delhi NCR, Ghaziabad, and Uttar Pradesh.

Applications

• Facade panel bonding — aluminium composite panels, fibre cement boards, and stone cladding to concrete or steel subframe
• Structural glazing and window frame bonding to concrete and masonry reveals
• Bonding precast concrete cladding elements to building frames
• Interior fit-out: bonding skirting, cornice, and trim elements to walls without mechanical fixings
• Bonding ceramic and stone tiles to steel structures, furniture, and fit-out elements
• Waterproof elastic sealing of construction joints, service penetrations, and gaps in facade systems

Key Advantages

• Elastic after cure — accommodates differential thermal movement between dissimilar materials without cracking
• One-component cartridge — no mixing, simple mastic gun application, minimal waste
• Bonds to most construction materials without primer — concrete, masonry, metal, wood, glass, ceramics
• Permanently waterproof — seals as well as bonds in facade and joint applications
• High grab — holds components in position quickly, reduces or eliminates temporary support during cure
• UV-resistant formulation — maintains performance and appearance on exposed facade applications