It depends on what they are made of. If it doesn't deteriorate in alkali or
mild acid and doesn't exude plasticizer over everything, you are probably
OK. I bought a set of Rubbermaid 6X8 inch trays about 30 years ago for use
with 5X7s and other small stuff, and they are still among my favorites.
Polystyrene, PET, and polycarbonate (Lexan), including rubber filled
variants, are generally all right. PVC is usually OK.

"Matt Ashbrook" wrote in message
news:haiXb.312608$na.466029@attbi_s04...
Anyone tell me if there's any reason why I couldn't use the "storage" type
of plastic boxes they sell a Kmart or Walmart for shoes and clothes to
develop prints in as opposed to buying new trays? I recently bought a
larger
easel very reasonably and I'd like to keep from spending over a hundred
bucks for a set of 20 x 24 trays. So I thought I would buy a few of these
storage boxes and cut them down to trays . Then i could get buy for about
$25.00. They wouldn't have to last forever at that price - in case I
finally
make the digital move.

Thanks,
Matt A.