Good aftternoon, fellow MuseumLers -- Do you know which MarvelSeal you are
working with? I quote from the University Products website:

"Marvelseal 360 is an aluminized polyethylene and nylon barrier film.
Marvelseal 470 is an aluminized polyethylene and polypropylene barrier film.
Both resist the transmission of water vapor and other atmospheric gases.
This economical, flexible and easy to fabricate material is used for passive
humidity controlled shipping or storage bags. In addition, Marvelseal is
ideal for lining the inside of shipping crates and exhibit cases, and for
lining shelves with the objective of decreasing off-gassing form exposed
wooden surfaces. It has alos (sic) been used to create a sealed framing
package and to create a low oxygen environment to treat insect infestation.
University Products has had the manufacturer remove the standard red
printing because tests have shown it may oxidize. Marvelseal 470 is more
easlly heat sealed while Marvelseal 360 is more puncture resistant. Price
per roll."

I use a household iron with a titanium soleplate so when I apply heat to the
wrong side accidently, it won't stick to the soleplate. 

Regards,
Margaret (Meg) Geiss-Mooney
Textile/Costume Conservator
Professional Associate, AIC
[log in to unmask]

-----Original Message-----

In my experience Marvelseal needs to get pretty hot. I
have had good luck with a household iron set at
cotton, not all the way up but pretty hot. Especially
if you are doing a large surface and dont have all
day. You will notice a change in the reflective
qualities when it gets too hot (it kind of bubbles a
little). Good luck

Can anyone
> recommend how to heat seal Marvelseal to large
> shelves, or even if using
> heat is the best method? 

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