Woodland Scenics rock molds

Discussion in 'Photos & Videos' started by TrainNut, Dec 19, 2006.

  1. TrainNut

    TrainNut Ditat Deus

    Joined:
    Sep 15, 2004
    Messages:
    1,810
    Likes Received:
    0
    Heya all,
    I've been using my Woodland Scenics rock molds for many years now and they are starting to get a little sticky. By this I mean that the rocks don't just pop out anymore - they have to be persuaded to leave the mold. I thought that if I took a toothbrush and cleaned out all the hydrocal residue real good that they would return to normal but that lasted just a couple times and they are back to being sticky again. Do you pre spray anything on your molds to help them release the hardened rock? And if so, does that affect the way the mold receives paint?
  2. Russ Bellinis

    Russ Bellinis Active Member

    Joined:
    Feb 14, 2003
    Messages:
    4,707
    Likes Received:
    0
    A method that Bragdon Enterprises shows in their video on using their rock molds suggest making a mold release with pertoleum jelly (aka-vaseline) and white laquer paint in a spray can. What they do is rub the vaseline into the mold until it disappears. Then you spray the mold with the white laquer paint. As the paint dries it is suppose to react with the petroleum jelly and create a mold release. When you pour the plaster into the mold and it sets up the casting should pop out easily. Just shoot the laquer outside or in a spray booth because it is toxic.
  3. Dragon

    Dragon Member

    Joined:
    Nov 13, 2003
    Messages:
    151
    Likes Received:
    0
    Are you pre-spraying your rock molds with anything at all?
    I use wet-water (water with a couple drops of dishwashing liquid) and the rocks pop right out. Just spray the mold right before pouring the hydrocal.
  4. ezdays

    ezdays Out AZ way

    Joined:
    Feb 3, 2003
    Messages:
    6,590
    Likes Received:
    0
    I have yet to use the rock molds that I have, but my intention was to spray them with Pam before using them. I think I heard that somewhere here on the Gauge.
  5. MDShepherd

    MDShepherd New Member

    Joined:
    Dec 19, 2006
    Messages:
    4
    Likes Received:
    0
    Hmmm... As oppose to “Dry-Water” :)
  6. Dragon

    Dragon Member

    Joined:
    Nov 13, 2003
    Messages:
    151
    Likes Received:
    0
    Haven't you heard? there's a new product out. "Instant Water". The instructions read "just add water".
    :)