wow thank you Ilia, that is really excellent and important information....i did notice that the first one i did is getting lighter and lighter, which is not exactly what i wanted,...but in the case of the second one, it is actually working to it's benefit.
question... since it is still active for a few days, does it mean that during those days one can continue to do some detail work and / or washes (without eggwhite)? i know it is hard to tell how it will dry, but i am wondering in the case that one just wants to continue working and doesn't have the time on the first "painting" day.
aside from that, the eggwhite must give it a nice sheen as well, no?
thanks again....and i will try not to panic!

karla