Roberts Brick Mortar provides an added touch of realism to your model by making it easy to simulate the look of realistic white brick mortar. Simple to use and apply. Water clean-up, non-toxic, quick drying time. Can be used in a variety of modeling applications in all scales including HO, N and O, and is perfect for weathering, painting, scenery, super detailing, military modeling, scratch building and structures. Roberts Brick Mortar is available in multiple quantities.