A couple of local folk did this a few months ago. Get a bunch of MEK from Home Depot (or Lowe's, or . . .), a putty knife and a couple of rolls of paper towels. Lay several thicknesses of paper towels across the surface to be stripped and soak with MEK. Let it soak for 5 - 20 minutes; some experimentation will be required, and it may be necessary to re-wet the area. THe silkspan should peel off in sheets, and fairly easily. Areas that are really stuck down may require gentle persuasion with the putty knife. At first, don't try to do more than 1 square foot at a time; you may be able to increase this area as you become more proficient. Don't substitute Acetone for the MEK; it evaporates too fast. Patience helps. Good luck.

Dick You are  exactly RIGHT  Always  do anything like this  outdoors and  take precautions. I would even use a chemical mask outdoors  doing this sort of operation
. Try your best to NOT breathe the  fumes
Randy

Dick, Randy, and Ron - - Y'all are 100% correct. I honestly meant to include all the strictures about "Work outdoors!" and "Stay Upwind!" and just plain forgot to add them when I finished the mechanical aspects of the job, and then again when I re-read the post. Mea culpa maxima!

For that matter, it would probably be a good idea to wear Rubbermaid^® Gloves, too.

A *little* late here, but I use "Dad's Stripper" that I get from Wal Mart.  Do follow the precautions on the can, but it takes less and works great!  So far it has removed everything that I have tried it on, but it will eat plastic canopies. 

Bill <><