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  • I've done loads of these (sadly). 9mm mdf and sand the edges to 400 grit is the way I've settled on. It does take some work to get a good decorative finish. I glue and screw them together, countersunk screws. Toupret wood filler to cover screws etc.

  • Not what I wanted to hear!?
    When I have time I’ll see if I can find a foam cored tile board that’s smooth as it’s so much easier to work with.
    This is one of those jobs to be done after we move in so I guess I have a couple of years to do them..

  • I bought a tin of MDF edge primer on a whim that I have yet to test out. Otherwise I saw a chap doing fine passes with toupret fine surface filler on the cut edge and sanding with a relatively high grit. Once painted it had the same appearance as the face. You're welcome to the tin of unopened primer or if I recall, it wasn't very expensive at SF/TS.

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