#toptips #postit To bend plastic card for tunnel or bridge linings, I roll the plastic card into a tube smaller the the diameter of said tunnel. hold together with a clothes peg at each end and run under a very hot tap for a few minutes to soften the plastic. Then run under the cold tap for a minute or two to harden the plastic. When releasing the pegs, the plastic will open up but it will have a curve to it, which will make it easier to use when lining your tunnel or bridge.

Posted by Ged at 2021-06-09 12:25:30 UTC