Epoxy is a term used to denote both the basic components and the cured end products of epoxy resins, as well as a colloquial name for the epoxide functional group.
Most green cards are valid for 10 years before you need to renew them. However, if yours was issued on the basis of your marriage to a U.S. citizen or a legal permanent resident, and the marriage is less than two years old, your card is only valid for two years.
Lastly after an alien marries a US citizen or green card holder and is petitioned with Form I-130, the alien can adjust status to permanent resident after two years of successful marriage using Form I-485.