Non-Color-Coded Modeling Media

We offer two different types of modeling media: Non-Color-Coded (see information below) and Color-Coded-by-Size, which shows sediment transport and deposition according to size.

Our modeling media is made of recycled, ground melamine plastic (learn more on Wikipedia).  It has a density of 1.6, about 60% the density of quartz sand, which means it demonstrates river processes with impressive accuracy on compressed scales of space and time. The media is lightweight and easy to transport.  It won’t damage pumps, and it is much easier to clean than sand and other quartz materials. 1 cubic foot of media is 50 pounds (1 liter of media is 1.76 pounds).

Non-Color-Coded Media – “Alpha” Mix

The Alpha mix comes standard with the Emriver Em2 and Em3 models.

Media particle sizes are between 0.4 mm and 2.0 mm.

Request a quote.  $5.75 per pound. We will sell up to 60 pounds of Alpha Mix; for orders more than 60 pounds, please contact us for more information.We can help you determine how much of our media you would need to fill your own stream table. Please contact us with the dimensions of your table.


Particle size distribution in the Emriver Alpha modeling media.


Close-up photo of Emriver modeling media; range of colors shown

See our modeling media in action in the straight channel simulation below: