Good resistance to petroleum fuels, oils and lubricants, not suitable for acids. 3mm thick cork sheet cut from roll stock which is one metre wide. Temperature range of -20C to 120C with a hardness of 70-80 shore. This cork gasket material is sold in square pieces measuring 500mm x 500mm i.e 0.25 square metres. When ordering multiple pieces we will always try to supply as a single sheet i.e order a quantity of 2 and we will do our best to send a single piece measuring 1000mm by 500mm. For special size requirements please contact us and we will be pleased to quote accordingly.