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  1. W

    Hardwall on an external wall?

    I've been told your not supposed to use Hardwall for external walls, but why? It seems even stronger than sand and cement render to me. Could anyone please educate me?
  2. W

    How to Sand and Cement Render?

    Can anyone clear up some queries I have about sand and cement rendering as I hear contrasting opinions. I would like to Render a large block wall, hopefully whilst the weather is nice ; 1 Should I use sharp sand or building sand and to what mix per cement? 2 Do I apply PVA direct to...
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