Dimethyl phthalate, also known as DEP, is a commonly used plasticizer in the production of plastics and vinyls. DEP is also used in the manufacture of fragrances, paints, adhesives, inks, and pesticides.
When exposed to DEP, rubber materials can suffer from swelling, softening, embrittlement and cracking. Additionally, DEP can cause rubber to become brittle, leading to a decrease in elasticity and an increase in permeability. DEP can also cause rubber to become discolored, leading to a decrease in overall performance. In some cases, the rubber can become sticky, leading to a decrease in strength and an increase in wear.
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