make my own ground foam

Discussion in 'HO Scale Model Trains' started by omrick, Feb 6, 2008.

  1. omrick

    omrick New Member

    Hi again. I have searched the forums, but have not seen what I want. I have an older piece of foam rubber from a car seat. I have tried grinding it with various tools, but can't get the effect I want. I think that if the foam rubber was a bit harder it would work. I remember in the long ago, having some of this that had almost crystalized. I wonder how to make my current foam rubber harder. Any ideas for quickly deteriorating this material?

    ps: omrick means "Old Man Rick"
  2. nachoman

    nachoman Guest

    I have heard of people using a blender, but have never tried it myself. You can probably pick up an old blender for cheap at a thrift store.

  3. MasonJar

    MasonJar It's not rocket surgery

    You can grind it in a blender, but be sure to tear it up first, and put enough water in so that it "flows" through the blade properly.

    I have done this, but found that dyeing the result a useful colour is the hardest part.

  4. Nomad

    Nomad Active Member

  5. RonP

    RonP Member of the WMRC

    I use Flower foam base from arrangements. Sure it comes out a weird green but add enough yellow and you get some sweet variations.
  6. Jim Krause

    Jim Krause Active Member

    I worked for a commercial model shop and foam in blender was the standard procedure. Make sure that your blades are sharp. You will have to experiment with colors.
  7. omrick

    omrick New Member

    Thank you all for the information. I did read the postings from 2005 about the blender method. My thoughts were to find a way to crystalize the foam rubber. I have in the past seen this material in large chunks that had become semi-hard and were easy to crush up with bare hands. I don't know how it occurred, but thought someone else might know the process. Maybe it was early Japanese rubber. It took them a while to get it right, but now their rubber is as good as ours. When my wife isn't paying attention, I will try the blender. Many thanks.
  8. Jim Krause

    Jim Krause Active Member

    I forgot to mention the "wife" situation. It might be better to find a blender at a yard sale. Yes the foam does deteriorate when exposed to sunlight, high temps and just plain old age. I remember some of the early padded dash boards that would sag after the foam disappeared.
  9. RonP

    RonP Member of the WMRC

    I posted this recently in another thread, I have heard of using saw dust of various sizes.
  10. Trainiac77

    Trainiac77 Member

    Sawdust is what I use. I use different size strainers to get the different results. I just add a few drops of paint in a container and mix it and dry it on a cookie sheet. If (and most of the time it does) it clumps up, then I put it in a blender to break it all up. I've only used it as ground cover though, never on trees because it's too fine.
  11. RonP

    RonP Member of the WMRC

    Good stuff i put an order in to my dads shop/garage for a grocery bag of dust from under the table saw.
  12. Sounds like the flower base stuff Ron P mentioned. You should find it at any craft store
  13. omrick

    omrick New Member

    Thank you all for your replies. I am going to search the thrift stores and hopefully, only buy a blender. I stopped at one place and came out with a coffee grinder. I am fighting a forty five year habit as a pack rat. It is harder to kick pack ratting than it was to quit smoking. lol

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