Renovating the kitchen and some of the plaster came off when I removed the tiles between the upper cabinets and the countertop. I was advised to use waterproof filler, which I did. Now that I was going to buy more waterproof filler to finish the last bit, this sales assistant said that waterproof filler is not suitable for tiling.
What to do? I've pretty much plastered about 2.5 linear meters and some spotty places along an equally long stretch.
Is the only option to chisel off all the filler and replace it with house fix or are there other options?
