I have a small DIY 'leadlight' project underway.

Without going into the boring details that no-one reads, I need to make several straight joints between 200mm wide glass panels. The panels are 3mm thick.

For this purpose I bought some lead channel from the local glazier. It's a double 'U' section, so it effectively joins two pieces of glass.

But it's just occurred to me that a rubber product (or neoprene - like whatever they make car door sealing strips from these days) might be easier to use.

It'd need to be the sort of thing you'd use to mount, say, a perspex panel into an aluminum sheet. Nar mean? Like installing a caravan window.

Anyone used this sort of thing?

Many, many moons ago I'd go to a Para Rubber shop (where they sold just about everything except rubbers), secure in the knowledge that they would have the product I sought.

But I'm not even sure that Para Rubber still exists.

Suggestions appreciated.