No, it's neither waterproof nor washable. Lightly vacuum, dust or wipe with slightly damp cloth for cleaning purposes.
No, it's unpasted (NON-PASTED) and it requires to apply adhesive by yourself.
Most of the fabrics are made from a natural woven blend of paper and polyester, some of them contain cotton and jute. They are not over-processed products, fringed selvedge and variations in color are to be expected.