Ensure a completely watertight seal on your roof-integrated solar PV installation with the GSE In-Roof Sealant High Tack. This premium adhesive sealant is specifically formulated for use with GSE flashing, delivering instant grab and long lasting flexibility to prevent water ingress around your solar panel mounting system. Perfect for both homeowners undertaking DIY solar projects and trade professionals seeking reliable, high performance sealing solutions.
The high tack formula bonds immediately to most substrates without requiring primer or surface preparation, even on damp surfaces. Its solvent free, isocyanate-free, and silicone free composition ensures safe, odourless application that won't stain or damage roofing materials. With excellent resistance to weathering, UV exposure, and mechanical stress, this sealant maintains its integrity for years of reliable protection.
Why Buy
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Instant Grab & Strong Adhesion: High tack formula provides immediate hold without clamping, saving time during installation
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Zero Surface Preparation: Apply directly to most substrates - no primer needed, even on damp surfaces
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Complete Weatherproof Protection: Creates a watertight seal that prevents water ingress around flashing's and mounting points
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Safe & Eco-Friendly Formula: Free from solvents, isocyanates, and silicone – non toxic, odourless, and non staining
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Universal Compatibility: Bonds effectively to metal, glass, wood, plastic, concrete, tiles, and more
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Long Term Durability: Remains flexible after curing, resisting cracking, UV degradation, and extreme weather conditions
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Trade Grade Performance: High mechanical and shock resistance ensures flashing's stay secure under dynamic roof stresses
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Professional Finish: Black colour blends seamlessly with roofing materials for a clean, discreet appearance
Suitable For
- GSE In-Roof solar PV mounting systems and flashing's
- Roof integrated solar panel installations (new build and retrofit)
- Sealing around flashing edges, abutments, and roof penetrations
- Non lead flashing systems (including Flexible and similar products)
- Tiled roofs, slate roofs, and flat tile applications
- Interior and exterior sealing and heavy duty bonding applications
- Both DIY homeowners and professional solar installers/roofers
Key Features
- Premium high tack adhesive sealant designed specifically for GSE flashing's
- Delivers approximately 5-6 metres of adhesive bead per cartridge
- Cures to a flexible, weatherproof finish that accommodates roof movement
- Overpaintable once cured for seamless integration
- Suitable for all weather application - interior and exterior use
- Super strong bond strength (320kg/10cm²) for heavy duty applications
- Standard 290ml cartridge fits all common caulking guns
Technical Specifications
| Specification |
Details |
| Product Code (ART Number) |
ART106982 |
| Content Volume |
290ml |
| Colour |
Black |
| Chemical Base |
MS Polymer (Modified Silane) |
| Coverage |
Approx. 5-6 metres of adhesive bead |
| Application Method |
Standard caulking gun |
| Surface Preparation |
Not required – applies to most substrates including damp surfaces |
| Primer Required |
No |
| Compatibility |
GSE In Roof flashing's, metal, glass, wood, plastic, concrete, tiles, slate |
| System Compatibility |
GSE In Roof Mounting System for solar PV |
| Weather Resistance |
Excellent - UV resistant, all weather use |
| Flexibility After Curing |
High accommodates roof movement without cracking |
| Overpaintable |
Yes |
| Indoor/Outdoor Use |
Both interior and exterior |
| Solvents |
Free from solvents, isocyanates, and silicones |
| Toxicity |
Non toxic, odourless, non staining |
| Environmental Compliance |
Lead free, eco safe formula |
| Intended Use |
Waterproofing sealant for solar PV flashing's and roofing applications |
Installation Tip: For optimal results, apply a continuous bead of sealant to the flashing before positioning. Press firmly for instant grab - no clamping required. Allow appropriate curing time based on humidity conditions (approximately 2mm per 24 hours).
Complete your GSE In-Roof solar PV system with this professional grade sealant for guaranteed waterproof performance and long term peace of mind.
