In the DLG world I use something Blenderm tapefmade by 3M and it can be found in any good medical supply store.  Comes in various widths..  I may be simplifying it but I angle down the surface  a bit being sure to keep the edges touching and place a strip across the top the full length of the hinge line.   On the under side where you usually have an inverted V or groove to allow down movement you fold the surface back over on itself and apply a strip down that side.  Finger pressure is all that's needed to secure it a couple times up and down the length.  Very sticky yet  bendy stuff and rarely needs to be replaced.

http://www.woundcareshop.com/blender...FVZc2godgzYxHg

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