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 r pools 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.

Does what it said on the tin

Brill product

For all pond lovers this product will stop leaks to a degree but preparation is key, i have a large 70000 ltr pnd with a large waterfall. I am constantly repairing but never completely stopped the leaks. Used G4 and my only criticism is the tinge left after applications, my grey stone is now a yellow tinge that looks like a bad algae infestation. Have now looked at an epoxy grey paint to get rid of the tinge, if you require this product for any other application should be perfect. 3 stars due to the clear being nothing like clear. FOLLOW THE INSTRUCTIONS AND BUY ENOUGH AS 500g does not go far

I bought this to seal a terracotta pot so I could DIY a water feature and it was great. It leaves a shiny almost patent like effect on the pot but that was fine as I only applied it to the area that would be holding the water. It does smell very strong, even using it outside you could smell it indoors. But apart from that it was great.

Very easy to use. Advise to use in a well ventilated area or outside (which it would be if sealing a pond - I was fixing a leaky birdbath). Followed the instructions and it did the job. Be aware it’s not totally clear - dries to the colour of yellowish varnish. However this didn’t bother me or the birds.