OB1 Anthracite Multi-Surface Construction Sealant & Adhesive
Versatile OB1 sealant bonds metals, wood & more underwater. Food-safe, solvent-free, and weatherproof for marine, roofing & DIY repairs.
OB1® Anthracite Multi-Surface Construction Sealant & Adhesive is a high-performance hybrid-polymer solution designed for versatile applications in construction, marine environments, and industrial settings. Its solvent-free and VOC-free formula ensures safety and durability while providing robust adhesion across diverse materials.
Applications
- Bonds metals (including aluminium and lead), plastics (PVC, GRP), glass, wood, fibreglass, and more—even underwater.
- Ideal for marine and swimming pool repairs (resistant to saltwater).
- Food-safe (ISEGA-certified) for kitchen worktops, sealing marble, granite, and quartz without staining.
- Structural adhesive for carbon fibre, fibreglass, and GRP repairs under vibration.
- Effective sealant for solar panels, preventing shrinkage due to its solvent-free composition.
- Secures mirrors without degradation, eliminating the need for additional fixings.
- Superior bathroom sealant—prevents mould with zero VOC and non-shrinking properties.
- Reliable for lead flashing installations on roofs, even in wet conditions.
- Repairs leaking gutters without requiring a dry surface—adheres permanently without cracking.
- Garden repair solution for terracotta, concrete, slate, and pond ornaments underwater.
Key Benefits
- Exceptional Flexibility: Elongates up to 350%, accommodating material movement (-40°C to +120°C).
- Weather & Chemical Resistant: Withstands harsh conditions, including UV exposure and saltwater.
- Odourless & Environmentally Compliant: A+ air-quality rating, safe for residential and industrial use.
- Paintable & Non-Shrinking: Maintains integrity over time without cracking or collapsing.
After bigger quantities? Need extra quantities? Get in touch and we'll organise it for you.
- Dispatched within 0-2 business days
- Delivery to United States: 3-5 business days*
- Free Shipping Included
- Marine & pool sealing
- Kitchen worktops
- Solar panel installation
- Mirror fixing
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- Material: Hybrid polymer
- Colour: Anthracite
- VOC Content: Zero
- Temperature Range: -40°C to +120°C
- Elongation: Up to 350%
- Certification: ISEGA (food-safe)
- Chemical Resistance: Excellent
- Fungal Growth Resistance: Yes
- Paintable: Yes
- Weight: 509g
Always follow local regulations and product guidance.
Free standard delivery on Australian mainland orders. Express delivery options and international shipping available at checkout.
We offer a 30-day money-back guarantee on most products. For faulty items, contact us within 14 days for a replacement or refund.
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