Even better through porolonovuju a tape to pass a strong kapron thread and with its help to fix a tape on cover of all on four nails which are driven in on corners of cover. If there are no long pieces of foam rubber from which it would be possible to cut the necessary length of a tape, it is possible to use and small pieces, having cut from them a tape and having stuck together their ends end-to-end any glue, capable to fasten foam rubber.
Aún mejor a través de la cinta de espuma dejar pasar el hilo sólido de caprón y con su ayuda fijar la cinta sobre la encuadernación de todo sobre cuatro clavos clavados por las esquinas de la encuadernación.