My little guide to understanding seals. :-)

[blankname]

1-127 -> platinum refining effects128 -> bloodseal ability

256 -> sealed item

512 -> not able to use extreme stone

1024 -> upgraded with tool aid

2048 -> upgraded with silver booster

4096 -> upgraded with gold booster

8192 -> upgraded with platinum booster (and unable to throw away)

16384 -> combined ability

32768 -> lent item

65536 -> ?? (removes item name)