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Aquarium Accessories / Aquarium Hardware / Gold Label Underwater Sealer White 290mL

Gold Label Underwater Sealer White 290mL

Item # 34758


Pond/Aquarium Sealer that bonds to almost everything


  • Gold Label is a unique, almost magical product. As the name suggests it will seal & bond just about everything to everything, including vinyl, rockery, coral, decking, concrete, PVC and EPDM pond liners, glass, wood, stone, ceramic, slate, the list goes on and on.
  • The magic is that it will do this even underwater! Make repairs to your gutters and roofs or fix leaks in your chlorinated swimming pool, marine or freshwater aquarium & your garden pond; without having to remove the fish or plants and not needing to drain them either. You can even use it to stick coral onto living rock.
  • It is non-toxic to fish & aquatic plants, UV Stable, inert, solvent & isocyanate free, cures underwater and has 4 times the bond strength of silicon.
  • For best results clean all surfaces, to be free of Grease, algae.
  • Place sealer directly onto the surface you wish to bond/seal.
  • For bonding where there is movement (expansion & Contraction) of different substrates, leave a minimum 2mm thickness of bead between surfaces. Where there is livestock near the sealer, protect from ingestion While curing. Full cure 24 hours. Initial tack 2-3 hours. Can be painted over up to 4 hours.
  • For Clear Gold Sealer, leave a minimum 5mm bead between surfaces. ( MS Modified Polymer) For joining liner, use two beads 150mm apart and leave to cure for 36 hours at ambient temperature and for a patch, run a continuous bead around the edge of the patch and gently press into place. DO NOT PRESS FLAT.
  • Use a 5mm bead for optimum cure and bond strength. Initial cure 24 hours, continuing to harden up to 7 days. For use on concrete, first use a suitable primer.
  • Please note that occasionally new tubes of the Gold Label Underwater Sealant may seem to have hardened, if so please put the tube in a bucket of hot water (not boiling) and this will soften it up for use. Old, opened tubes may also be able to be resurrected this way also.
  • Sometimes the sealant may not come out of the opening as it forms a hard crust over the outlet, if this has happened carefully push a screwdriver down the hole and into the tube to break the crust, even a freshly opened tube may need to have this done.

Q Will it cure under water? A Yes, as it uses the oxygen in the water to cure
Q Can I use Gold Label is marine tanks? A Yes, there is no difference in performance between fresh water and salt water
Q Can I use Gold Label to stick living rock or coral? A Yes, because Gold Label is an inert, non-toxic product it can be used safely on coral or living rock


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