Originally Posted by zerelli
I thought with the TB3 the point was to avoid the GS foam? I have read so many methods lately that I am starting to get them confused. I think I am going to try that clay product being sold on ebay.
Most people use TB3 to coat GS in the portions of their water feature. It is similar to a concrete paste. It is great for sealing/texture, but not so great to create 3D shapes like Great Stuff. You can also coat other areas of the hardscape you want to seal or add texture to like branches, pvc pipes, rock waterfalls, etc.
If you are using GS I too recommend the black 'pond' great stuff because it doesn't show through like the yellow normal kind.