OB1 Grey Multi-Surface Construction Sealant & Adhesive, Box of 12

The OB1® Grey Multi-Surface Construction Sealant & Adhesive is a versatile and robust solution for a wide range of bonding and sealing applications. This high-performance sealant bonds metals (including lead), plastics (such as PVC and GRP), glass, mirror, polystyrene, fibreglass, and wood. It is effective even in wet conditions, including underwater and saltwater environments, making it ideal for marine and pool applications. The formula contains zero VOCs, ensuring a safe and environmentally compliant product.

Key Features

• Excellent chemical resistance
• Resists fungal growth
• Weather resistant
• Food safe, conforms to ISEGA standards
• No solvents or isocyanates
• Does not shrink
• Paintable
• Unique flexibility (elongates up to 350%)
• Works in wet or dry conditions

Applications

• Bonds aluminium and wood, accommodating expansion and contraction in harsh conditions (-40°C to +120°C).
• Food-safe formula for kitchens and food preparation areas, ideal for marble, granite, and quartz worktops.
• Marine and pool sealant—applies underwater and resists saltwater; perfect for swimming pool tile repairs.
• Carbon fibre, fibreglass, and GRP repairs—provides a strong, vibration-resistant bond.
• Plastic to metal/steel bonding—flexible adhesion without etching or burning surfaces.
• Solar panel installations—permanent seal without solvent evaporation issues.
• Mirror adhesive—strong initial grab, no solvents to degrade mirror backing.
• Superior for bathrooms—zero VOCs prevent mould growth.
• Lead flashings and roofing applications—seals and grips in wet conditions.
• Gutter repairs—works underwater and prevents seal collapse.
• Gardening repairs—fixes terracotta, ceramic, cracked concrete, and more, even in/