OB1 Brown Multi-Surface Construction Sealant & Adhesive

OB1® Brown Multi-Surface Construction Sealant & Adhesive is a versatile, waterproof silicone solution suitable for a wide range of construction and repair applications. Its unique hybrid polymer formulation provides an exceptional bond for metals (including lead), plastics (such as PVC and GRP), glass, mirror, polystyrene, fibreglass, and wood—even in wet or underwater conditions.

Key features include:

• Excellent Chemical Resistance
• Resists Fungal Growth
• Weather Resistant
• Food Safe (Conforms to ISEGA Standards)
• No Solvents or Isocyanates (Zero VOCs)
• Does Not Shrink
• Paintable
• Unique Flexibility (Elongates up to 350%)
• Works in Wet or Dry Conditions (Including saltwater)

Applications

• Aluminium & Wood Bonding: Maintains a strong bond from -40°C to +120°C, accommodating material expansion and contraction.
• Marine & Pool Sealant: Water-resistant, even in saltwater, making it ideal for underwater tile applications.
• Carbon Fibre & GRP Repair: Provides a durable, flexible bond resistant to vibration and movement.
• Plastic-to-Metal Adhesion: Solvent-free formula prevents surface damage while allowing flexibility.
• Solar Panel Installation: Unlike silicone mastics, it won’t shrink, crack, or degrade.
• Mirror Adhesive: No solvents or isocyanates means no degradation of mirror backing.
• Bathroom & Kitchen Use: Prevents bacterial and mould growth, making it safe for food zones.
• Roofing & Gutters: Effective for sealing lead flashings and repairing leaking gutters.
• Gardening Repairs: Repairs terracotta, ceramic, concrete, and pond ornaments—even underwater.