Tigercat wrote:
Would soaking the whole canopy in a large container of warm water for a number of hours, work?? Of course you have to be careful during the scraping phase, no matter how you loosen the paper. Good luck!!
I have used the method with the lighter fluid as per a plastic suppliers instruction, but that was on small projects...not a guzillion dollar aircraft canopy, so I called a supplier who's been in the biz for 35 years. He said
given the age of the material, the absolute safest approach is to soak the
canopy in warm soapy water and scrape away the backing with a soft
plastic scraper. As far as solvents were concerned, he asked, "was the
original Plexy cast or extruded"?...ummm, I dunno..it's from the 50's.
He then suggested the aformentioned method using the original formula
Palmolive as the gentlest most agressive solution.
I called another supplier(1952)...but got a "kid" on the line who suggested
I scrap it. He was met with DEAD silence while I let him have his little chuckle.
Then the typical response these days, "Ummm, I'll go ask". He came back
suggesting a product called Acrisol or Acerisol...he couldn't spell it. No
queries of extrusion, cast, or vintage. Sounds like warm soapy water to
me....
Good Luck!
Good question J-CP! ..and thanks for the pics, Tulio!