Bitumen particles almost instantly create a continuous bitumen film by coagulating and separating from water which evaporates.
bɪtˈuːmɛn pˈɑːɹɾɪkəlz ˈɔːlmoʊst ˈɪnstəntli kɹiːˈeɪt ɐ kəntˈɪnjuːəs bɪtˈuːmɛn fˈɪlm baɪ koʊˈæɡjʊlˌeɪɾɪŋ ænd sˈɛpɚɹˌeɪɾɪŋ fɹʌm wˈɔːɾɚ wˌɪtʃ ɪvˈæpɚɹˌeɪts.