No, not that kind, one that sells mouldings and edging as well as all kinds of sheet foam and rubber.

Pentonville Rubber

I was walking to Angel from Kings Cross (hate the tube), and stumbled across it. I took a deep breath and went in to have a look around (With the kit car in mind....) and the guy was really quite helpful.

Ideal supplier for sheets of flooring or strips, edging etc. Im speaking to him about heat resistant sound proofing.

that was a bit of a let down after reading the title

Also have a look at Seals + Direct who have a larger range of bits and pieces.