Modifiers matching coating:

• additional,
• organic,
• permanent,
• protective,
• pearlescent,
• liquid,
• optional,
• refractory,
• visible,
• decorative,
• wet,
• glossy,
• temporary,
• loose,
• nonconductive,
• transparent,
• opaque,
• nonstructural,
• hard,
• thick,
• abrasive,
• base,
• unwanted,
• polymeric,
• thin,
• alternative,
• optical,
• supplementary,
• nonmetallic,
• solid,
• reactive,
• stubborn,
• inorganic,
• clear,
• nonmagnetic,
• corrosive,
• insoluble,
• external,
• environmental,
• black,
• hydrophilic,
• tough,
• reflective,
• nontoxic,
• architectural,
• frictional,
• special,
• modern,
• brittle,
• fragile,
• friendly,
• slippery,
• exterior,
• standard,
• waterproof,
• advanced,
• outer,
• fine,
• ordinary,
• impermeable,
• topical,
• uniform,
• expensive,
• soft,
• top,
• over,
• ceramic,
• metal,
• thicker,
• heavy,
• relevant,
• metallic,
• thermoplastic,
• industrial,
• common,
• old,
• interior,
• smooth,
• aesthetic,
• appropriate,
• magnetic,
• impervious,
• specified,
• new,
• suitable,
• secondary,
• natural,
• synthetic,
• dark,
• internal,
• preservative,
• chemical,
• bituminous,
• resistant,
• specialized,
• colored,
• porous,
• viscous,
• marine,
• biological,
• plastic,
• traditional,
• conventional,
• conductive,
• indoor,
• durable,
• popular,
• difficult,
• sensitive,
• overlying,
• functional,
• color,
• miscellaneous,

Simple categories matching impervious:

• surface,
• membrane,
• conveyance,
• material,
• flooring,
• structure,
• subsoil,
• paving,
• cover,
• area,
• nature,
• item,
• glove,
• layer,
• clothing,
• land,
• construction,
• paint,
• substrate,
• film,
• catchment,
• covering,
• concrete,
• substance,
• stone,
• object,
• soil,
• receptacle,
• coating,
• formation,
• rock,
• fabric,
• container,
• tile,
• envelope,