Bondit HA6 Aquarium & Vivarium Sealant 310ml

Bondit Aquarium Sealant is a marine-grade silicone sealant built for serious aquarium and vivarium construction. Whether you're building from scratch, resealing an existing enclosure, or fabricating custom reptile setups, this is a sealant you can trust with water and the animals that depend on it. Available in black, clear, and grey to suit different build aesthetics.

Construction-Grade Performance

This is a non-shrinking silicone sealant formulated to marine quality standards. It remains stable when exposed to UV light, ozone, and salt water immersion, and holds its integrity across temperature extremes — relevant whether it's going into a cold-water aquarium or a warm reptile vivarium. In paste form, it is non-slumping, which means it stays exactly where you apply it.

Where It Can Be Used

• Bonding, bedding, and sealing glass in aquarium and vivarium construction
• Sealing flat-pack reptile vivariums during assembly
• Creating in-situ gaskets and seals for pumps and pipework to prevent water ingress
• Dust and weatherproofing seals for cabinets in dirty or outdoor environments

Compatible Surfaces

Bonds reliably to glass, ceramics, anodised aluminium, primed metals, timber, and many plastics — covering the full range of materials commonly found in vivarium and aquarium builds. This broad compatibility makes it a practical choice across a wide variety of construction and repair tasks.

Choosing Your Colour

All three colour options — black, clear, and grey — share the same marine-grade silicone formulation. Choose black for a clean finish against dark backgrounds and black-framed tanks, clear where you want the sealant to disappear visually, or grey to complement aluminium-framed enclosures and equipment. Select your preferred colour from the options above.

• Free delivery to UK mainland addresses on orders over £79.
• In-stock items ordered before 12pm Monday to Friday usually ship the same day.
• Standard vivariums go free next working day; the largest sizes travel by pallet.
• Live animals and custom vivariums have a £50 delivery charge. Custom vivariums take approximately 2 to 4 weeks to build.

Delivery policy30 day returns