As a durable elastomer, EPDM is conformable, impermeable and a good insulator. The formation is conformable with both the underlying Abo Formation and the overlying Glorieta Formation. The basal contact of the Walcott Member with the overlying Sixtymile Formation is conformable. The sealant material consists of polyethylene glycol (PEG), a water-soluble, non-thrombogenic, conformable, bio-inert polymer. Two types of contact&colon; "conformable" and "unconformable". Near-horizontal, or conformable intrusions, along bedding planes between strata are called intrusive sills. Thin, conformable plastic bags, especially dry cleaning bags, have the potential to cause suffocation. Contact with Tonoloway Formation is probably conformable, but sharp enough to suggest an unconformity. Lower contact with the Wills Creek is probably conformable. He grew up in poverty and he showed himself obedient and conformable. As a result, this contact is inferred to be conformable or only locally a disconformity. Thus, the contact between the Cardenas Basalt and the Dox Formation is conformable and interfingering. In Pennsylvania, the Marcellus forms a sharp conformable contact with the Onondaga's Selinsgrove Limestone member. In other areas the contact may be conformable. Conformable contacts represent no time gap in the geologic record.