Bond ItCLEAR HA6 RTV Silicone Sealant Marine Aquarium Safe Water Fish Tank Adhesive (2)

This is second time I'm buying it as need to move old one from item I used and replace item and can say till now no drop went trough while before there was leaking and first silicon after some time release on parts. It's good quality.

100% brilliant stuff. Used it on my caravan windows after they delaminated. This stuff is absolutely fantastic.

Used to stick some lumps of rock together to make a shrimp friendly hiding place, left to dry for a week and its solidly stuck together. Super glued java moss to it so very pleased with it (and myself). Used it for a couple of other small jobs and by chance seem to have hit on a way of stopping the nozzle blocking up with cured silicone as it arrived with no nozzle cover. I cut the finger off a thin rubber glove and used clear medical tape to seal it tightly to the nozzle. Probably not news to some diy-ers but thought it worth a mention as I have thrown out a small fortune worth of sealants over the years that have dried back into the main tube.

To seal 2 pond filters great value and quality

I only gave this item 3 stars for the easy to use and spread detail as the nature of the product will never be easy to apply. We have been buying this product for years and it is equal to silicone that retails at £12 per tube, for use with sticking down / joining artificial grass and aquatic, pond and water feature based jobs.One note from the instructions, even though use with natural stone is not recommended, we have never had a problem when sticking stone onto timber sleepers or re-fixing troublesome paving slabs down. To be on the safe side, probably best to not use for that purpose when working with elements that wall above 600mm.

I used this to make up some fish tanks, I made 5, all watertight. It starts to cure after approx 30-40 minutes giving time to position all sides, full cure approx 48 hours or so. Really can't fault quality or price

Water dragon tank good value for money

Fish tank had a huge leak along entire back edge. It bonded perfectly and mo more leaks. Excellent product and highly recommended