SILMARK is a gray-colored silicone rubber casting material. With the high concentration of pigments in the material, even the strong lighting under a microscope cannot penetrate and reflect from particles beneath the surface of the cast, and optimum sharpness of the microscopic image is thus guaranteed. The gray color has the advantage of providing an excellent contrast when photographing and digitally storing the casted toolmarks.
SILMARK is available in two viscosities: low and medium. The medium viscosity material is meant for use at the scene of the crime, where marks are often found on vertical surfaces. The low viscosity variant is for making test impressions in the lab (usually on an horizontal surface), where it will flow easily into the smallest details.
For the curing of the silicon rubber a paste hardener is used. The paste hardener is conveniently measured and mixed.
Extra hardener (C-7200) can be ordered separately.
To mix the base compound with the hardener a spatula and mixing pad are useful. Our mixing pads contain 100 sheets coated paper sized 3 x 6 or 6 x 9.5 inch. The cardboard bottom sheet has an anti-slip layer.
The white plastic spatula is a long-life item. Its length is 7.7 inch.
White and black SILMARK can be found in the fingerprint section. Brown SILMARK, in low and medium viscosity variants, is also available.
SILMARK is a gray-colored silicone rubber casting material. With the high concentration of pigments in the material, even the strong lighting under a microscope cannot penetrate and reflect from particles beneath the surface of the cast, and optimum sharpness of the microscopic image is thus guaranteed. The gray color has the advantage of providing an excellent contrast when photographing and digitally storing the casted toolmarks.
