I accidentally cracked my fish bowl by placing it on a stand without noticing a pebble underneath. I left it in the garden with the intension to do summer gardening tasks. So when I got the item as a part of vine, I decided to try MyPond MS300 Window Sealant to fix it. After cleaning and drying the bowl, I applied the sealant, which was easy. After letting it dry overnight, I'm ready to introduce fish to their newly-repaired home. MyPond MS300 worked well, although it's black and not clear. Since my fish bowl's surface is covered by pebbles, it works for me. So if you need black sealant that works well with the water, you can give this a try.

Our rubber lining seam had come open below the water line due to drought and the ground moving. When we realized that we needed help fast. This stuff worked perfectly. Caulked the open seam right in the water and pressed it closed with some rocks. The next day we could refill and the waterline didn't drop. We'll be buying more.

Good product.This is a really good pond sealantwhich does the job.

Excellent pond repairBetter then your standard sealant300mlBlackI recommend

Pond sealant in black of good quality and did the job we needed on our pond just read the side instructions first and you should not go wrong

This is a pond sealer in a caulking tube.The way it works is that you ooze out the caulk into and onto the area to be sealed and then let it cure.It can take a long time especially if its thick and they advise that you make it thick.You can seal things that are underwater but you have to be able to hold them in position till cured .We got it for the water butt which has a crack in it and I will lay the barrel down to apply the caulk and then do the inside so there is a bond between the two applications through the crack..I havent used it yet as you cant use it above 25 degrees C according to the instructions and its quite a lot hotter than that at present .The stuff that has oozed out of the back of the tube has cured so I could peel that bit off to see its hardness and flex.It feels like hard rubber, less squidgy than silicone and I think it will do the job perfectly well once its a cool enough day to use it.You can use this where there are fish which you cant do with a lot of waterproofing caulks.The tube is 300ml which fits the standard caulking guns not the super large professional guns.

This is a pond sealer in a caulking tube.The way it works is that you ooze out the caulk into and onto the area to be sealed and then let it cure.It can take a long time especially if its thick and they advise that you make it thick.You can seal things that are underwater but you have to be able to hold them in position till cured .We got it for the water butt which has a crack in it and I will lay the barrel down to apply the caulk and then do the inside so there is a bond between the two applications through the crack..I havent used it yet as you cant use it above 25 degrees C according to the instructions and its quite a lot hotter than that at present .The stuff that has oozed out of the back of the tube has cured so I could peel that bit off to see its hardness and flex.It feels like hard rubber, less squidgy than silicone and I think it will do the job perfectly well once its a cool enough day to use it.You can use this where there are fish which you cant do with a lot of waterproofing caulks.The tube is 300ml which fits the standard caulking guns not the super large professional guns.

Picked to mend some gaps in my water collection system, works as expected. Tube is a bit messy.

It's nice to have a black fish-safe sealant that does the job (the previous ones I have used are white/translucent and are clearly visible in patches when dried which is annoying). It is still early days to see if this works over a longer period but seems ok so far. I was however a little put off that there were dried sealant marks on the bottom inside of the tube when I received it, it seems to have leaked and dried previously (or was overfilled at the manufacturer perhaps).

I ordered this waterproof sealant to complete repair of some small cracks which had developed in an ornamental concrete bird bath.As delivered, the sealant had already seeped out around the plunger in the base (see second picture) which momentarily made me wonder if it was used - the top and nozzle were intact however so this seepage originated when the tube was assembled.The sealant was a little messy to use (mainly due to the very fine nature of the cracks I was sealing) but went on well and hopefully will prevent any further leakage or deterioration once the frosts arrive.I have plenty left in the tube for any future sealing jobs around the house.

Good colour (black) and easy to apply but the product description says bonds materials including plastic, but the tube states it does not bond to plastic.

13.99 each and 2 are missing the tops.

All throughout the product info it states suitable for pvc, multiple times. Then on the actual item itself it says not suitable for plastic liners. Well which is it? Plastic liners are made of pvc.

Fitted pond window using it, had 6 tubes only need 4 to fit the glass window so far works great, fined it slow drying so have to do it in layers to get a full seal all the way around.

Our rubber lining seam had come open below the water line due to drought and the ground moving. When we realized that we needed help fast. This stuff worked perfectly. Caulked the open seam right in the water and pressed it closed with some rocks. The next day we could refill and the waterline didn't drop. We'll be buying more.

Good colour (black) and easy to apply but the product description says bonds materials including plastic, but the tube states it does not bond to plastic.

13.99 each and 2 are missing the tops.

All throughout the product info it states suitable for pvc, multiple times. Then on the actual item itself it says not suitable for plastic liners. Well which is it? Plastic liners are made of pvc.

Fitted pond window using it, had 6 tubes only need 4 to fit the glass window so far works great, fined it slow drying so have to do it in layers to get a full seal all the way around.

Fitted pond window using it, had 6 tubes only need 4 to fit the glass window so far works great, fined it slow drying so have to do it in layers to get a full seal all the way around.

Fantastic service, ordered online and the items came very quickly.

The MS300 is pretty amazing stuff. I used it to seal the bottom drain, returns, skimmer and window and if you follow the videos on YouTube everything sealed perfectly first time.

excellent