Don't put certain tool handles in with artifacts... acetic acid and butyric acid EATS! I found this interesting wondering why some tool handles smelled odd. - Ed Sharpe archivist for SMECC "Tool handles made of Cellulose Acetate Butyrate. A thermoplastic, it offers excellent UV and solvent resistance that cellulose acetate doesn't offer. And it feels in the hand like a natural substance, something that is almost intangible, like a tool that is made by craftsmen, a characteristic that a polyethylene or polypropylene handle does not have. CAB also offers no splinters like the older wood handles. It also can be very clear. And when that plastic begins to degrade, it releases free acetic acid and butyric acid." Read much much more here-> http://dwarmstr.blogspot.com/2013/02/why-toolboxes-and-tool-handles-stink.ht ml