Modifiers matching foam:

• stable,
• natural,
• acoustic,
• polymeric,
• plastic,
• solid,
• porous,
• rigid,
• dense,
• synthetic,
• organic,
• aqueous,
• structural,
• pliant,
• lightweight,
• traditional,
• flexible,
• pliable,
• sensitive,
• thermosetting,
• resilient,
• hydrophilic,
• thicker,
• thermoplastic,
• metal,
• inexpensive,
• brittle,
• cellular,
• edible,
• expanded,
• resinous,
• hydrophobic,
• soft,
• surrounding,
• semirigid,
• conventional,

Simple categories matching thicker:

• lubricant,
• muscle,
• material,
• fabric,
• liquid,
• coating,
• feed,
• medium,
• oil,
• pipe,
• foam,
• substance,
• original,
• fibre,
• fluid,
• paint,
• piece,
• card,
• product,
• part,
• sheet,
• bedclothes,
• mixture,
• clothing,
• cord,
• document,
• article,
• paper,
• wrap,
• papers,
• jacket,
• leather,
• cloth,
• batter,