MyPondMS300 Marine Sealant, Window Sealer, Pond Sealer for Leaks Concrete Glass Metal, MS Polymer Adhesive 4x Stronger than Aquarium Silicone Caulking, Black Pond Liner Marine Adhesive Sealant, 300ml

Great product, I used it to seal water butt connections and a dripping tap and it certainly works. Fast and easy to use

Completely brilliant. Well done to the developers. You actually get what is advertised and does exactly what they say it will do. Say goodbye to cb1 sealant and buy this. Credit to you.

It works ! fountain no longer leaks , it was important for it to be non toxic. Get everything ready in advance including a waste bag, def wear disposable gloves

Easy to use and it does just what it says it should, sealed our pond nicely

Quite awkward to work with, it sticks like mad to anything it touches, other than where you want it to stick or course. Cleaning it off your skin and nails afterwards is a challenge! But it cures very quickly even in cold weather and underwater and cured my leaky pond problems.

Very messy and very difficult to get off your hands. It will stick to anything it touches permanently so make sure you are wearing old clothes. I wish there was a warning about this on the product.

all good and real fast sendint it out

Completely solid in the tube so unusable. Advertised as suitable with plastic, but tube says not.