This high-performance marine-grade sealant features advanced MS polymer technology, making it 4 times stronger than traditional silicone-based products. The 300 ml liquid formula comes in a compact package measuring 24.31 x 10.01 x 6.2 cm and weighs 449 g.

Superior Bonding Technology Built with terminal silyl polyether as the base polymer, this adhesive creates permanent, flexible bonds that expand and contract with surface movement. The formula is environmentally friendly with zero formaldehyde, no odour, and no shrinkage after curing.

Versatile Material Compatibility Bonds securely to concrete, stone, wood, glass, metal, rubber, plastic, fibreglass, acrylic, porcelain, and vinyl surfaces. Most clean surfaces require no priming (concrete surfaces need priming for optimal adhesion).

Underwater Application Capability Uniquely designed to cure underwater in 24 hours while requiring support during the curing process. Works effectively as a permanent seal for submerged applications, making it ideal for aquatic environments and water features.

Weather and UV Resistance Engineered for British weather conditions with excellent resistance to rain, temperature fluctuations, and UV exposure. Suitable for both indoor and outdoor applications with long-lasting durability.

Aquatic Life Safety Fish-safe formula ensures no harm to aquatic life, including fish, plants, and reptiles, once fully cured. Perfect for maintaining healthy aquatic ecosystems in ponds, aquariums, and water features.

Application Guidelines Best results achieved on clean, dry surfaces with a single large bead rather than multiple smaller applications. Allow at least 2mm thickness for optimal sealing performance. Skins over quickly but continues curing for flexibility over time.