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Mirror packaging

Started by jeff koontz, 08/05/2003 08:07AM
Posted 08/05/2003 08:07AM Opening Post
Got a question about packaging mirrors...found this post which explains a lot about shipping mirrors:

"Re: recoating and insurance questions
Posted by Mike on 10/2/2002 9:48:44 AM

Use the custom cut Styrofoam if you can, as this is how Zambuto and Meade ship large optics. I like to use Owens Corning pink wall insulating foam that is 2" thick and rigid. Make a sandwich of foam top and bottom with a center piece cut for the mirror. Protect the figured surface with optical tissue paper. Wrap and tape this with a thick cardboard shell or inner box; making sure that the sandwich stays intact. Place this in a larger box with foam peanuts as filler; no shifting allowed.

Put your name, address, etc. on the rear of the mirror and inside packaging. Say a prayer and ship it!"


Question: "protect the figured surface with optical tissue paper" So it's ok to let the optical tissue paper touch the coated surface? Should I pull a sheet of paper taut arount the edges so the only coated surface touching the paper would be the edges? I suppose I could then overlay a circular cut foam over the top and wrap the whole mirror. Would be interested in learning what others have done to ship mirrors.

2nd question: Would any ordinary camera shop have optical tissue paper or is it something which requires special ordering? Is there a particular kind or brand which is best?

Thanks.
Posted 08/05/2003 04:06PM #1
I did that cut styrofoam trick and shipped a 16" cassegrain mirror set successfully. But I also cut the foam sandwich so it fit in a homemade 20x20x8 wooden crate. I then packed the crate inside a 24x24x12 cardboard shipping box with bubble wrap all around. The wood may be overkill, but I'll bet it could stand the 6' drop kick test. I shipped it FedEx ground.

I think the key with "optical" tissue paper is it just being lint free. my mirror came back, the cover was aluminum foil (which is also lint free). It was stretched to not touch the primary. This cover was also used on the convex secondary. Yes the aluminum foil could touch the surface, but I couldn't see any problems with that. (Actually it looked great.)

Good luck,
Charlie

Fort Lewis Observatory: (37.238, -108.052) ~2360m (7744 ft.) elevation.
Darkness - typically 6.5+
Scope - Meade 16" LX200; f6.3 focal reducer
Focus - JMI Smart focus
Camera - SBIG ST-10XE; (~.5"/pixel)
Guiding - AO-8 and/or Meade 5"/DSI/PHD
http://www.fortlewis.edu/observatory