Rinker Materials provides a range of building materials, such as crushed stones, asphalt, cement, and concrete blocks and pipes. It also offers various export, environmental, transportation and technical services. Additionally, the company offers several chemicals, including adhesives, cleaners, primers, color pigments, hardeners, sealants, toppings, resurfacers, release agents and water repellants. Its environmental services include tire disposal, engineering field analysis and thermal desorption. The company also offers specialized services to independent testing laboratories and municipalities throughout the state of Washington. Rinker Materials, with a location in Middletown, Del., is approved by the Cement and Concrete Reference Laboratory and is a part of the Rinker Group.