Questions : Before I bought my casket, I asked the cemetery people what kind of casket is required to be in their indoor crypts. They said it must have a rubber gasket and be a metal sealer casket. So I bought a brand new casket from a supplier on Ebay for under $500. It is a 20 gage metal sealer that locks with a crank at one end,( I bought a crank too) and it also has a black rubber gasket that goes around where the lids close together. I keep it in my attic in my house locked shut. I know that this rubber gasket can come off if need be. I found out that the actual price for a rubber gasket is around $50 ( mortuaries charge like 120% more for a rubber gasket,) I was wondering will this rubber gasket be ruined with the climate changes over time with hot and cold in my attic? I live in the North Midwest USA. Also do you think that the cemetery staff will not seal my casket once they put it into the crypt, if that is requested so that my body does not turn to stew or blow up from the gas if the casket was cranked down and locked for my entombment ? Also does a body need to be embalmed with more chemicals to be entombed in an indoor crypt, compared to if a body was to be put under ground ?