Tiled Square Foam Acoustic Panels
They are soundproof tiles. These acoustic panels are mainly made of plastic foam.

The colours of tiles and offset random can be adjusted by using the Substance SBSAR file.
 
Dirty Styrofoam Polystyrene
It is Styrofoam or polystyrene which is largely used as food containers for vegetables and fishes.

Dirt can easily be trapped into the tiny gaps between polystyrene particles, especially the containers are pulled on wet floors in markets.

The SBSAR file allows you to change the colors of the Styrofoam and dirt. The dirt level can also be tweaked.
Clean White Styrofoam Polystyrene
This material is a polystyrene which is as known as Styrofoam in the US. It is an excellent insulation, so it is commonly used as a takeaway food containers.

If you want to fine tune the color, e.g. making it more yellowish or greyish, the SBSAR file may help.
 
Acoustical Eggcrate Foam Panels
This egg crate shaped foam is acoustic panels which is commonly installed in studio rooms.

The SBSAR gives you the freedom to set the orientation of panels, the amount of hemispheres, colors of the tiles etc.
Acoustical Eggcrate Foam Tiles
These purple acoustic panels are soundproof foam having a shape of eggcrates.

The color can be changed. It can also be a mixture of 2 colors in a checker pattern as long as the Substance 3D Designer SBSAR is used.
Acoustic Panels Foam Pyramid Tiles
These are acoustic foam used for soundproofing in studios. This kind of tiles has a lot of forms such as wedges, pyramids. A pyramid is one of the effective shape to absorb sound.

These black tiles can be turned into different colors or even a checker pattern by the Substance 3D Designer SBSAR file. The randomness of the position offset can also be set.
Acoustic Panels Foam Wedges Checker Tiles
They are acoustic panels arranged in a checker pattern with 2 colors, black and red. Wedges can be found on each foam.

In order to set the number of wedges per tiles, users can use the Substance 3D Designer SBSAR file. Besides, the colors of the checker pattern can be adjusted.
Acoustic Panels Studio Foam Wedges Tiles
It is a soundproof material used by studio. These acoustic panels are soft and foam-like. Each tile has a few wedges to effectively absorb sound waves.

The tile color and the number of wedges per tile can be changed by the Substance Designer SBSAR file.
Air Duct Rubber Texture
It is a black rubber which has a little foam-like texture. It can be used for texturing wrapping air pipes or car tires.

The SBSAR file allows users to change the color and tweak the imperfection of the surface.
Foam Board / Polystyrene Texture
It is a foam board or technically, polystyrene material. The pattern of monomer can be found on the surface of this synthetic aromatic hydrocarbon polymer.
Black Coffee Foam Texture
It's foam of a black coffee such as americano. A good coffee comes with a layer of crema and this texture has no exception.

There are large and small bubbles scattering around edges. It is the natural phenomenon. Bubbles tend to adhere to surface.
Sound Proof Acoustic Foam Texture
It is a sound proof material called acoustic foam. Usually, it is used to cover walls of music or live studio. It is also used in laboratory in which scientists do different sound-related experiments.

Black is the most common color for acoustic foam.