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Rubber solutions are used in a wide range of applications, including adhesives, sealants, paints, carpet backing compounds, tire compounds, etc. In addition to natural rubber, synthetic rubbers such as Neoprene and butadiene are also used for these applications. The manufacturing process, product viscosity and ingredients used vary according to the end use of the rubber solution, however, a typical batch would traditionally be prepared as follows: • The process vessel is charged with the solvent. Many types of solvent are used, including acetone, toluene, MEK, hexane etc. • Rubber can be supplied in either powder, crumb or block form. Blocks and large crumbs normally require chopping or granulating before they can be added to the solvent. • The mixer is then started. Mixing continues for several hours until the rubber is fully solubilized. • Finally, other ingredients such as pigments, fillers, stabilizers and lubricants are added and dispersed into the mix.

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