The Si-Carb Sampler is an easy to use sampling tool for use with diffuse reflectance accessories. The kit provides a means for collecting intractable samples such as paint on automobiles. A small disk of silicon-carbide paper is used to abrade the surface to be analyzed. This technique transfers a small amount of sample to the disk. An infrared spectrum is obtained of the material adhering to the surface of the silicon carbide disk. For abrading extremely hard samples,diamond paper is available.