DIY Polyester Spray Adhesive used before Infusion???

Discussion in 'Materials' started by Zac Penn, Mar 2, 2016.

  1. Zac Penn
    Joined: Nov 2015
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    Location: Jacksonville, FL

    Zac Penn Junior Member

    I am wondering if anyone has a recipe for a homemade spray adhesive that will keep the marinate in place while I am placing everything into my mold and bag? I am going to be using polyester resin w/ MEKP catalyst and then vacuum infusing some sandwich core panels.

    I am thinking about maybe thinning some straight resin w/ solvent (recommendation on that would be appreciated, but I have Acetone and MEK readily available at the warehouse) and putting it into a household spray bottle. Then mist the laminate, wait for the solvent to evaporate, and then lay the laminate onto the tacky surface.

    Thoughts? Ideas?
  2. ondarvr
    Joined: Dec 2005
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    Location: Monroe WA

    ondarvr Senior Member

    Depending on the mold release product, acetone can attack it, leaving you with a sticking part. Resin works OK, so does clear gel coat, the gel coat becomes stickier sooner, you won't easily be spraying either one through a household spray bottle though. It's normally done with a siphon or gravity feed gun, and just a light coat.
    1 person likes this.
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