Double-sided Frame

[RobM]

A treasure trove of information there, thanks everybody.

I'm going to try the frame method suggested by Dermot, with a slip on the back, and then the melinex method, mindful that there's a concern of historical object looking too glossy (the client is happy to work through options, so maybe I'll get ahold of some acrylic too), and sandwiching it between glass.

So am I right in saying the melinex primarily to protect from condensation when sandwiched between either glass or perspex, rather than holding the object into place?

Is there any risk of the envelope slipping? Imagine this would sometimes be the issue with this sort of thing. Or does the melinex tend to keep it stuck?

Maybe not for this project, but I like the sound of magnets for maintaining a double frame, so I might speak to Alec about a tutorial.

I'll post the end result for some very frank feedback in due course!

[Justintime]

As I see it and when used as wannabe Framer was describing, melinex/mylar can be used to hold a piece floating if the envelope is made correctly which may take some experimentation. I don't think it would hold it as firmly as acrylic but will have less contact than the acrylic. Do not use glass with a piece of paper work. Glass exchanges heat and cold far more rapidly than acrylic, subjecting the piece to far more rapid fluctuations, making it more susceptible to micro condensation. Maybe someone else can explain this better.