I used the metal foil, because there's no access behind the dryer and I had
no choice; and it was an absolute PITA. I think I tore the first one and had
to start over.

Since then, I think I've seen sturdier stuff. I've also seen some that is
partly rigid and partly flexible.

--
Regards,

Jerry Schwartz
http://www.writebynight.com
e-card JerryS https://ecardfile.com/