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Thread: Using PVA as a mask

  1. #1
    Join Date
    Mar 2013
    Location
    Memphis TN
    Posts
    768

    Default Using PVA as a mask

    I've been using PVA (Poly Vinyl Alcohol) as a release agent for mold making and it dawned on me that this stuff might make for a good spray on mask. PVA is a liquid that when dry, turns into a plastic film that nothing sticks to. It washes off with water and resists epoxy and other harsh chemicals. Seems like it might make a good, inexpensive and easy to use mask.
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  2. #2
    Join Date
    Dec 2019
    Posts
    17

    Default

    Where do you purchase the PVA?

  3. #3
    Join Date
    Mar 2013
    Location
    Memphis TN
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    768

    Default

    You can get it virtually anywhere. I bought mine from a fiberglass supply. When ordering, be sure you buy non-diluted PVA as some of it is diluted already so it sprays easier. The diluted version is virtually the same cost so get the concentrate and dilute it yourself with alcohol so it sprays. If you brush it on, it's better to use the concentrate as it sticks to the brush better. I find a simple pump spray bottle works just fine.
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  4. #4
    Join Date
    Dec 2019
    Posts
    17

    Default

    Thanks for the info

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