ProRep Terrascaping Resin Colour Pigment Brown makes creating exciting naturalistic habitats with living plants easier. First a structural framework is created using polystyrene or expanding foam. Then this is textured using the Terrascaping Texturing Compound, before being waterproofed using Terrascaping Sealing Resin. This colouring pigment is mixed with the sealing resin to create a colour which matches the desired effect in the terrarium. Adding more or less of the pigment will determine how dark or light the colour is, and the pigments can be mixed to create different colours.