I know I asked a different variant of this question a couple of years ago, but things have moved on now. I had a four inch square that was cut out of a coping stone due to a 'misunderstanding' that I was wanting to fill. ln the end l got it filled by a builder using a fairly heavy concrete mix. He has left a rough surface, slightly indented and ideal for a surfacing layer. Is there an outdoor equivalent to Polyfilla that could be applied as a thin layer to create a smooth finish?
Concrete surface repair
May 25, 2026
Last reply: 1 month ago
3 Replies
I have used this for concrete repairs it regularly has the car driven over it and nothing has shifted it.
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Richard
There was/is an outdoor version of Tetrion filler.
You need something frost resistant.
I tried to patch a path with a mix using water proof glue and it was fine until the first frost.
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