Shipping a Model 33 (RO) Teletype

At 09:35 AM 11/13/2004, Joe R. wrote: If you look closely on the cans at your average home repair store, they'll often have a selection of varying expansion rates. If you're filling the gaps on the side of a window frame when you're building a house, for example, you don't want it to keep expanding for hours. You want something that'll expand quickly, not too much, then stop. Otherwise it will expand with such pressure as to prevent the window fill large gaps, meaning the foam expands more, longer. There are some foams that are latex-based as opposed to the aldehyde (?) form. One of my clients is a pottery. They have a big foaming machine, I think it's connected to one or two large vats perhaps a cubic 5x5x5 ft. They lay down a thin plastic sheet, foam into the bottom of the box, lay down another sheet, drop in the pot with a covering sheet, then foam again with another sheet on top so it doesn't stick to the box. You can see how you'd want it to expand quickly, to a certain volume, then not expand any more. (Us rural geeks must often have a wide range of talents, from construction to woodworking to tractor driving to sheep wrangling, etc. For computer consulting, I've been paid in pork, fish, vegetables, poultry, baked goods, etc.) - John