Despite　of　the　extensive　effort　made　to　construct　a　superhydrophobic　surface　in　labs,　achieving　a　short　processing　time　and　via　a　sustainable　production　route　remains　a　challenge　for　practical　applications.　Here,　with　tetrahydrofuran　and　n-hexane　as　co-solvent,　we　demonstrate　that　roughness　can　be　induced　on　polydimethylsiloxane　(PDMS)　coatings　to　achieve　superhydrophobic　coatings　on　different　types　of　substrates　including　woven　fabrics,　non-woven　fabrics,　and　melamine　sponge.　The　sample　constructed　without　adding　particles　exhibited　excellent　performance　for　versatile　oil-water　separation　of　mixtures　of　heavy　oil　and　water,　light　oil　and　water,　as　well　as　oil-water　emulsion.　Due　to　the　good　solubility　of　the　PDMS　in　the　co-solvent,　the　dipping　solution　exhibited　a　long-time　stability.　Moreover,　the　abundant　CH3　provided　by　the　self-roughness　PDMS　coating　helped　the　substrates　recover　its　superhydrophobic　property　even　after　destroyed　by　plasma　for　10　times.　We　believe　that　this　extremely　easy　dipping-curing　method　would　open　up　a　new　direction　for　fabricating　a　series　of　self-roughed　superhydrophobic　surface　with　self-healing　property.　Besides,　the　developed　strategy　is　fast　and　easily　scalable　for　industrial　applications.