Re: glassine envelopes Welcome to Connecting to Collections Care › Forums › Group Forums › C2C Community Archives – 2012 through 2014 › glassine envelopes › Re: glassine envelopes January 31, 2013 at 3:48 pm #133029 Nancy BarthelemyParticipant All I can say is that University Products catalog says they’re acid free and buffered. Beyond that, I’ll have to ask if they have passed the PAT test.
