[Leica] Very thin black tape for filmholder repairs

[timatherton at theedge.ca (Tim Atherton)]

I'm looking for some very thin tough black tape to repair my Mido 
8x10 holders 

The normal film holder type tape won't do the job. 

First, unlike regular film holders, I'm fairly sure it does need to 
be light tight. 

Secondly it needs to be very thin - the bottom flap hinge that the 
tape forms is on the top surface of the darkslide, not the end. Thick 
(i.e. "normal" thickness) tape causes a slight ridge which will 
probably let in light once it's placed in the clamshell for use. 
(e.g. normal gaffer/duct tape is too thick)

It needs to be 1/2" wide - I'm thinking maybe some kind of black 
mylar/metalized tape maybe? I've hunted through all the (few) auto 
repair/bodywork/ electronics/hardware stores in town - nothing that 
fits the bill. 

Any ideas? 


thanks

tim