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  1. #1
    Join Date
    Oct 2018
    Location
    Sydney
    Age
    52
    Posts
    14

    Default Treatment of Blocks to Avoid PVA Sticking to Moulds

    Hi All,

    Can anyone advise what I need to coat my moulding blocks (for bending ply) with to stop the PVA sticking to them. There will inevitably be a little bit which gets onto the blocks but I will also do a trial with cardboard before using the ply and sometimes the glue seeps a bit.

    I've heard wax will do the trick but what type? Do I just rub a candle on the blocks or use a furniture wax?

    Cheers

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  3. #2
    Join Date
    Aug 2008
    Location
    Melbourne
    Age
    34
    Posts
    6,127

    Default

    Glad wrap

  4. #3
    Join Date
    Apr 2018
    Location
    Nsw
    Age
    64
    Posts
    1,357

    Default

    Or a bit of duct or electrical tape etc

  5. #4
    Join Date
    Jan 2014
    Location
    Sydney Upper North Shore
    Posts
    4,464

    Default

    Thomas Johnson (an antique restorer I follow on YT) uses brown packing tape. I’ve started using it as well - works great. I used to use baking paper but it was fiddly.

  6. #5
    Join Date
    Aug 2008
    Location
    Birkdale
    Age
    51
    Posts
    279

    Default

    I just wrap them in packing tape.

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