Videos & Photos Videos How To Scenery How-to Library: Cast your own rock molds, Part 1

How-to Library: Cast your own rock molds, Part 1

By Angela Cotey | September 12, 2016

| Last updated on January 11, 2021


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In this two-part video series, MRVP Contributing Editor Gerry Leone walks you through the steps for making your own inexpensive rock molds. The resulting rubber molds can then be used to cast realistic rock faces and outcroppings for use on any layout. Follow (and sing) along as Gerry starts the extended process in Leone Labs (his workshop)!

14 thoughts on “How-to Library: Cast your own rock molds, Part 1

  1. I’ve always heard to use coal for rock castings, but I’ve never tried it and I would have done it wrong without watching this video. I do have a Woodland Scenics mold for several smaller rocks and it has worked fine, but it has cracked in some mold areas when trying to remove the plaster castings themselves… maybe I’m doing something wrong there too? So, were you the first guy or second guy?

  2. Great video. As a suggestion I have also used Fir or Pine tree large chips to mold or use “as is”. The sides of sandstone or slate stones also make very interesting molds. Keep the great work up… Really enjoyed it… Thanks

  3. Great video, I learned a lot. Will have to try this.
    Years ago I tried the latex mold process, but watching the Rubber Mold, I realize now that I probably coated the first coat of the latex too heavy, it never set up right.
    Will be interested to see the next part!

  4. Thank you Jerry for another informative video. I must admit to you that I prefer doing my rock castings in purchased rock molds. It doesn’t take but little time to turn out what I need for rock faces on my N ScalE PRR model railroad. I can product many in less than a day and within two days have them painted, weathered, and ready for installation. This is not a criticism but just a choice. However, that being said, I have learned from your videos and I’m very appreciative. Keep up the great work!

  5. Wonderful video Gerry. I didn’t know how to do this at all. Thanks for an entertaining how-to. I sure didn’t see the joke’s punchline coming. LOL.

  6. Very entertaining Gerry. Love your work – I’m going to give this a try (assuming we have a comparable product in Oz)
    Robert

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