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Here is the secret, but it takes patience.  I have used this method on my layout without failure.

 

Put the dirt/grass down first where you want it.  Then mix Elmers white glue 50/50 with water and add two or three drops of dish washing liquid soap to the mixture.  From a cup, use an eyedropper and dribble the solution onto the dirt doing a small section at a time.  Another secret I learned is, using a spray bottle of water with a fine spray, just dampen the area you are working on prior to using the eye dropper.  This helps spread the glue solution better. 

 

Others will have easier ways of doing it but this is how I learned from the pros.

 

Steve, Lady and Tex

Last edited by TexSpecial

I have heard many ways to use real dirt. do peple microwave it first put it in a blender also what is the step by step . I did see a video somewhere on how to do it. by a forum member I just remember he's a joker about his wife name excapes me at the moment. I also saw a video where an older gentleman was using leaves and such out of his yard put it in a blender and then mixed up a goop of something and spread it over the layout then used real tree branches to model a fall type scenery where the trees have no leaves but can't seem to find that video either.  so what is the step by step for using real dirt. since I have a need for a lot and have a lot in my yard

 

I've done it John's way which works well (also a good technique for gluing foam to plywood.

 

I've also painted the surface with 50/50 white glue/water mix and shake the dirt straight on using a flour sifter. This puts the dirt on in a light layer which does get "wet" but it's also sticky which allows additional dirt to stick without discoloration. The key is light layers.

 

Here's the location on the old Redlands Loop where I got the dirt.

2013-03-17 16.12.00

 

Here's the dirt glued in place on the micro layout.

2013-03-31 12.04.52

 

 

2013-03-31 12.29.18

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  • 2013-03-17 16.12.00
  • 2013-03-31 12.04.52
  • 2013-03-31 12.29.18
Last edited by AGHRMatt
This is it in  a nutshell on how to glue down Dirt as well as most ground cover.  I prefer to use the spay bottles as you can cover larger areas in less time. Also the glue to water ratio is not an exact science, I have been using 1 part glue to 3 parts water.  Depending on room temperature and humidity this may take a few days to dry so be patient.
 
BTW - The soap/water solution helps ease the surface tension of the dirt. Without this the glue will just bead up on the surface and not penetrate.
 
Steve
 
Originally Posted by TexSpecial:

Here is the secret, but it takes patience.  I have used this method on my layout without failure.

 

Put the dirt/grass down first where you want it.  Then mix Elmers white glue 50/50 with water and add two or three drops of dish washing liquid soap to the mixture.  From a cup, use an eyedropper and dribble the solution onto the dirt doing a small section at a time.  Another secret I learned is, using a spray bottle of water with a fine spray, just dampen the area you are working on prior to using the eye dropper.  This helps spread the glue solution better. 

 

Others will have easier ways of doing it but this is how I learned from the pros.

 

Steve, Lady and Tex

 

Buy Matte Medium from any hobby supply store including forum sponsor Scenic Express. It's a glue mix already prepared and formulated for attaching ground cover. Spray a light coat then apply your material then spray again. In an hour your done. The white glue method is expensive and often you'll get the mixture wrong. I used that method for years until I tried the Matte Medium. For large areas you must use a spray bottle or you'll be there for months.

Gandy

When using real dirt my first step was to bake it for a couple of hours to make sure pretty much everything was dead*.  Then I took the baked dirt, ran it through a blender and then screened it to remove larger clumps (some of which were also saved for scenery purposes).  This left me with a fine powder which was great for most model RR purposes.

 

Like John Sethian I painted the area where the dirt was going with glue and then applied dirt and ground foam.  Since the dirt was almost free I applied it liberally.  Then I waited for everything to dry and vacuumed up the excess.  On those rare occasions where the vacuuming left spots uncovered, I simply redid those spots.  You do want to go heavy on the dirt and light on the ground foam, because ground foam added to dirt will look better than dirt put on top of ground foam.

 

One advantage to this is that the dirt color doesn't change from the glue.

 

*  Very Important:  If you are married and hope to stay that way, do this when your wife will be gone for an extended period.  Use a dedicated blender and a dedicated cookie sheet or aluminum pan.

Last edited by Bill N

I'm going to have to try this here in Ga I wonder if I can get the red clay look out on the layout. I live on a hill with woods behind me and when it rains my yard washes down to a creek (a lot of dirt there) just pick some up and blend and bake and glue it down sounds fun

send wife out to get nails done while I do that  it's a plan

 

If you go the baking route, use dedicated equipment and take into account that the baking dirt will smell.  You really would need time to do it, clean up and get rid of any lingering smells.

 

I have baked and not baked.  I am now a non-baker.  I have never had any trouble from glued down un-baked dirt.  The key is to sift it.  Now that I have tried the glue approach I prefer that look to dirt that was not glued.  I am finding variations in color depending on how much glue was used and whether I sprinkle on a light dry layer on top while wet.  The variations are making it more real looking.  A great source of dirt for sifting is tube sand used for weight in trucks.

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