molds of a wide variety of shapes a fabric of shape size and stretch suitable for placement over the mold without the formation of folds or voids is preferably employed once the fabric is placed over the rigid or collapsible mold or alternatively once the fabric is placed over the at least partially deflated inflatable mold and the mold inflated an elastomer coating is applied to the fabric preferably a sufficient amount of elastomer is applied so as to render the fabric essentially non porous and non permeable to air under typical operating conditions application of the elastomer coating may be effected by any of a number of known means such as spraying the elastomer onto the fabric dipping the fabric into the elastomer or brushing the elastomer onto the fabric additionally the mold upon which the fabric is placed may be rotated as the elastomer is applied any elastomer having suitable properties for the construction of a specific air bag in accordance with design specifications may be employed broadly suitable air bags may be constructed with elastomers such as appropriately compounded chlorinated rubber silicone fluorosilicone polyvinyl chloride acrylate or urethane if necessary permeability of the air bag may be adjusted by adjusting the amount of deposited elastomer a range of one half mil to ten mils has been found suitable for elastomer thickness with two to seven mils being preferable upon application of the elastomer to the mold supported fabric the elastomer is cured by curing methods such.