Are there other RTV molding rubbers ?

Discussion in 'Getting Started' started by KING_MEMPHIS, Aug 9, 2007.


    KING_MEMPHIS New Member

    Hi Guys

    As a Newbie I've been lurking around for a bit - but now I finally jump in:
    For the last couple of weeks I've experimenting with WS RTV moldings for for Tunnelportals and retaining walls. Seems to work outfine; but I was wondering if any of you have any experience with other RTV rubber than the one for Woodland Scenic ? Preferably something cheaper :)

    Regards from Scroodge KING_MEMPHIS
  2. jbaakko

    jbaakko Active Member

  3. N Gauger

    N Gauger 1:20.3 Train Addict

    Welcome Aboard, King Memphis :) I know you'll get some great modeling help here :) :)
  4. yellowlynn

    yellowlynn Member


    I'm not sure what RTV stuff is, but if you, say, have a tunnel portal, and you want more of them, I used stuff from Hobby Lobby. Half a dozen or so coats and Voila! I think I got a half pint jar and have made several mold. Still have some left (if it hasn't dried up on me)

  5. jbaakko

    jbaakko Active Member

    RTV, Room Temperature Vulcanizing, basicaly means it cools at room temp.
  6. zedob

    zedob Member

  7. jbaakko

    jbaakko Active Member

    Ahh yes, Smooth-on, another sweet company!

    KING_MEMPHIS New Member

    Smooooth-ooon - sounds reeaally nice ! :-D

    Thanks for the welcome, Mikey. It's a great forum here.

    And thanks for the usefull links. Especially the Polytek- instructionvideo is great. It's fine to read about the process - but it's even finer to see it performed live. Though it seemed to be targeted to industrial purpose rather than making tunnelportals in Z-scale ;-)
    Well, if I downscale the process - it will probably work.

  9. woodone

    woodone Member

    Take a look at CC Crow's web site. lots of good information on casting.
    Fine Hydrocal Castings by C. C. Crow - Availability and Price List - Model Railroad Structure Kits and Masonry Castings
    Hope this might help

    KING_MEMPHIS New Member

    Thanks Woodone

    Another great link loaded with usefull How 2s.
  11. Tileguy

    Tileguy Member

    All the Molding compounds one could possibly need for any situation and a guide on choosing the right mold material for each project!!

    Yoour Welcome!! Want to learn Metalsmithing next?? LOL

    The Compleat Sculptor - Casting Compound Index

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