Need Help Help-Flexible sign trim

[MikesSigns]

Hello all,
I have a 3/4 thick sign which I am looking to find white rubber or flexible trim piece to go over the top radius. the radius is quite round at the ends. My plastic c channel pieces will not bend enough and was trying to avoid cutting. What do you use? or where may be a good place to search for such trim? a rubber c channel material would be perfect

Thanks in advance
Mike

 

[unclebun]

Wiley E Coyote would look here: http://www.acmerubber.com/uchannel.htm