21 Sep
2010
21 Sep
'10
10:26 a.m.
On 20 Sep 2010 at 16:48, Martin Goldberg wrote:
It's usually the oxygen that's involved in the
breakdown. After
Retrobrite, it's recommended to spray them with a light sealant like
satin acrylic lacquer. (Note that this is not a heavy paint on
lacquer like people think of with lacquering a piece of furniture).
Same thing used in some art communities to protect paper projects,
paintings, etc.
Do you have a reference for this? The literature that I've seen
pretty much faults the stabilizers and plasticizers as well as
outgassing of same.
I'd think that if a simple lacquer coating worked, museums could save
a lot of money by not pursuing grants and holding conferences,
publishing papers and books and generally agonizing about the
subject.
FWIW, I've used a product called "Midas Finish Seal Lacquer" marketed
by Rio Grande (the jewelers' supply house). It's primarily used to
seal jewelry finishes for display and can be easily removed.
--Chuck