Лако-красочные материалы — производство

EPDM was also introduced in the 1960s. This is a relatively saturated polymer structure with a diene, or double bond carbon monomer, added to provide functionality to the polymer chain. EPDM performs in many respects like butyl rubber in that it has excellent resistance to ozone and oxygen degradation, and has superior UV and weathering resis­tance. A major difference with butyl polymers is a lower resistance to moisture vapor transmission. The most common use of EPDM is as a sealant for single ply rubber roofing systems, which are themselves made of EPDM rubber. EPDM is available in both emulsion and solid forms, both of which can be easily blended with other elastomers in a formulation. There is also a liquid polymer available for blending and mixing into formulations.