Bonda G4 Pond Sealer Clear 500g

This is a “paint on “ product which creates a thin sealing layer over whatever you want to waterproof. I’ve used it to coat 3 small rocky rpools in my back garden. Easy to apply but thorough prep is vital. I’ ve applied 3 thin coats for max effect. I’m well pleased with the product.

Great stuff. Water slides off. Used on slate for a ware feature. On stones and slate makes things look varnished and “Wet”. Use crap brushes, you wont get this stuff off. Also, I never use gloves because I’m old school. This is so hard to remove from skin - be warned - use gloves. Very good products. It does smell but not crazy. I felt it actually went quite a long way.

Very effective sealer but it doesn't go a long way. I used it to seal a concrete bird-bath which kept losing water (and flaking) through absorption. I covered the whole stand, not just the bowl to stop winter damage and used almost 500ml with the recommended four coats.The first coat soaks in and the rest build up to leave a high gloss finish.Great seal which should avoid further winter damage but the birds had trouble getting a grip on the smooth surface. A bit of roughing-up with a file did the trick (on the sealant, not the birds)This will do for any non-toxic sealing job and looks like it will last a long time. Recommended.Note, (Oct 2013), after six months in all weathers: The finish is unblemished and has weathered to a slightly darker shade. No flaking or blistering and the bird bath looks ready to face winter. So, very pleased with purchase.

seals as stated. gets into nokes and crannies

Not used as yet and I expect it will take some time to be sure it seals perfectly. Fingers crossed as it came highly recommended.

This product may do what it's designed to, but ensure you have also bought cellulose thinners or acetone to clean your brushes, or you'll end up with a ruined brush like I did. Normal brush cleaners have no cleaning effects whatsoever on this product. I ended up using washing up sponges to apply it after the brush was ruined, so I could throw them away after each coat.

Easy to apply each coat dried quickly did 3 coats theneft for 6 hours then put water in and IT DIDN'T LEAKE!!!

Used this to seal the inside of a traditional stone trough which we are using for a water feature. Seems to have done the trick with no visible seepage but it is a pretty expensive product.

It works but leaves a yucky yellow color over everything you put it on. So if you’re trying to have a transparent look so the stone shows through, this isn’t the brand for you.