Mastic () is a resin obtained from the mastic tree ("Pistacia lentiscus"). The surfacing is a thick layer of mastic asphalt over an acrylic waterproofing membrane. The rubbers used might be natural rubber, gum mastic or gum arabic. Both chicle and mastic are tree resins. The road was laid by Tarmac Roadstone of Wolverhampton with mastic asphalt. The Ancient Greeks chewed mastic gum, made from the resin of the mastic tree. Mastic varnish was used to protect and preserve photographic negatives. Mastiha liqueur are an alcoholic distillate of mastic or mastic oil made from Chios mastic. It is sometimes flavoured with cardamom, mastic, salep, or ambergris. The primary tapes used in electrical applications are vinyl, rubber, mastic, and varnished cambric. One of the earliest uses of mastic was as chewing gum; hence, the name. Producing the mastic resin is a whole-year process for the local growers. Other trees, such as "Pistacia palaestina", can also produce a resin similar to mastic. Lane suggested that the mastic might have protective properties. Supports Mediterranean summer drought and frost more intense than mastic.