► GSA | Sealants

Professional Bonding & Joint Sealing for Construction, Facades & Industrial Applications

In construction, reliability is non-negotiable — & GSA Sealants are built to perform where precision & durability meet. Designed for professional builders, façade installers & maintenance specialists, this range covers everything from expansion joints to fire-rated sealing & structural bonding. Each formula delivers flexibility, strength & long-term resistance to weather, vibration & movement.

Whether sealing cladding panels, filling concrete joints or bonding materials on-site, GSA Sealants provide consistent results that professionals can trust. Their advanced polyurethane & hybrid formulations ensure strong adhesion across concrete, metal, glass & masonry, maintaining elasticity even in harsh Australian conditions.

Use alongside Adhesives & Sealants for complete bonding systems, Surface Prep & Paint for pre-application prep & Caulking Materials for fine finishing. Combine with Work Safety Protections for PPE, Gloves & Hand Protection for chemical handling, Paints, Finishes & Decorating Tools for topcoat work, Abrasives for prep, Tools Storage & Organization for jobsite setup & Tool & Equipment Care for cleanup. Backed by Same-Day Dispatch & the Industrial Shed Trade Guarantee, GSA Sealants deliver professional sealing power for every project.

What’s in This Collection:

► Facade – Black
‣ Professional-grade façade sealant designed for architectural joints, curtain walls & exterior cladding. Offers UV resistance & weather durability with a clean finish.

► Fire Seal – 600 mL Concrete Grey
‣ Fire-rated joint sealant formulated to resist smoke & flame spread. Ideal for wall penetrations, joints & construction gaps requiring compliance sealing.

► Flexible Joint Sealant – Grey 600 mL
‣ High-flex polyurethane sealant that accommodates joint movement in concrete, masonry & flooring applications.

► H55FC – Concrete Grey 600 mL
‣ Fast-cure polyurethane sealant for horizontal or vertical construction joints. Excellent adhesion on concrete, brick & structural substrates.

► Bond & Seal – Black
‣ Hybrid adhesive sealant combining bonding strength with elastic sealing. Suitable for structural joints, automotive repair & metal fabrication.

► Bond & Seal – Grey
‣ Multi-purpose hybrid formula for bonding & sealing across construction & maintenance applications. Adheres to metal, wood, concrete & plastic surfaces.

► Facade – White
‣ UV-stable architectural sealant ideal for façade joints & perimeter sealing. Provides a neat, paintable finish with long-term weather protection.

► Facade – Concrete Grey
‣ Neutral cure silicone sealant for structural façades & building exteriors. Resistant to movement, temperature change & moisture ingress.

► Facade – Dark Grey
‣ Dark-toned façade sealant for matching concrete, cladding & architectural finishes while maintaining high flexibility & adhesion.

Each product in the GSA Sealants range is formulated for performance — ensuring clean application, consistent curing & lasting protection under trade conditions.