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Potential Outcome: Restricted movement causes cohesive/adhesive failure or substrate stress.
Adheseal Best Practice: Use correct backer rod or bond-breaker tape to ensure two-sided adhesion per joint design guidance.
Potential Outcome: Poor adhesion and bubbling; premature failure.
Adheseal Best Practice: Clean using the two-wipe method with suitable solvent; ensure substrates are dry and concrete is cured (≥28 days) before application.
Movement and thermal cycling on exposed panels demand a flexible, UV-stable sealant that tools cleanly and stays put without primer delays.
Design joints at ~2:1 (width:depth). For 20 mm width, target ~10 mm depth with backer rod. Gun Hi-Flex Construction + and tool within 10–15 min for a smooth, elastic finish rated to ±50% movement.
Mask edges for crisp lines and remove tape before skin forms. Avoid trapping air while filling—continuous, steady bead prevents bubbles.
Modern facades require primerless bonding to powder-coated aluminium and glass with reliable UV stability and neat, low-mess presentation.
Lightly abrade non-porous frames, clean with appropriate surface prep, then apply a continuous bead and tool off for a weather-tight, non-staining seal that can be painted if required (test compatibility).
Maintain two-sided adhesion around frames by using bond-breaker tape on flat interfaces to allow thermal movement without stress.
Need a clean, non-corrosive adhesive/sealant to bond dissimilar materials and manage differential movement with minimal rework.
Apply a triangular bead (nozzle cut at 90° then wedged) and compress parts to ≥2 mm final bond line. The low-modulus, high-elongation hybrid manages thermal mismatch without print-through.
For critical bonds, pre-treat metals and plastics as directed and verify adhesion with site pull tests before production runs.
Usually no—Hi-Flex Construction + achieves strong primerless adhesion on many non-porous substrates. For critical or high-exposure applications, light abrasion and surface prep are recommended, with adhesion testing prior to installation.
Aim for a ~2:1 width:depth ratio. Internal joints min 5 mm width/depth; external joints min 12 mm width. Use backer rod for joints >10 mm deep and avoid three-sided adhesion with bond-breaker tape.
| Application / Use Case | Key Benefit | Primary Trades |
|---|---|---|
| Perimeter sealing of windows | Primerless adhesion, clean tooling, UV stability | Glaziers, Builders |
| Curtain walls & facade panels | Low modulus manages thermal movement | Glaziers, Facade Contractors |
| Precast / tilt-up expansion joints | ±50% movement; durable weather seal | Builders |
| Property | Value |
|---|---|
| Material Type | Hybrid MS Polymer |
| Curing System | 2–3 mm per 24 hours at 23°C to 25°C, 50% RH |
| Colour | White (RAL 9003), Grey (RAL 7047), Black (RAL 9011) |
| Density | 1.48 ± 0.05 g/cm³ |
| Shear Strength | 0.65 MPa |
| Elongation | >600% |
| Movement Capability | ±50% |
| Shore Hardness | 29 (after 14 days) |
| Modulus | 0.41 MPa |
| Pot Life | ≈25 minutes at 23°C and 50% RH |
| Skin Time | ≈10–15 minutes at 23°C to 25°C and 50% RH |
| Application Temperature | +5°C to +40°C |
| Service Temperature | -40°C to +100°C |
| UV Resistance | 500 h – Good (meets industrial standard) |
| Chemical Resistance | Excellent to water & detergents, Moderate to diluted acids/alkalis, Petrol & oil short periods |
| Coverage Rate | 6 mm × 6 mm: 16.7 m, 10 mm × 10 mm: 6.0 m, 12 mm × 12 mm: 4.2 m, 20 mm × 10 mm: 3.0 m, Triangular 10 mm × 10 mm: 12 m |
| Substrate Compatibility | Not for long-term immersion, Pools, Aquariums, Structural glazing, Mirrors, Avoid copper/brass discolouration, Not for bituminous or EPDM, Avoid confined cure and MVTR |
| Paintability | Paintable (test first, non-flexible paints may crack) |
| VOC Content | <4% |
| Standards | Class 50 |
| Packaging | 600 mL sausage, Carton of 20 |
| Shelf Life | 12 months (original packaging) |
| Storage Conditions | Cool, Dry, 10°C to 35°C |
Here are some common examples on where Adheseal Hi-Flex Construction Plus used by our customers.
