Abstract: A sealable container includes a substantially rigid housing having an inner surface and an opening and a liner including: a) a collar formed at least from a fluoropolymer material and sized and shaped to removably engage the opening in the housing; and b) a flexible bag, having an opening, sealed to the collar, and including a composite of an abrasion resistant reinforcing material and an inner fluoropolymer material that is substantially inert to content in the container and compatible with the fluoropolymer material of the collar, the bag being sized and shaped to pass through the opening in the housing and expand such that the abrasion resistant reinforcing material can be in contact with at least a substantial portion of the inner surface of the housing.