Originally Posted by Lordofthewings
The (otherwise very nice) Roadster 100 that has just popped-up for sale has a rather grim-looking job of sealing the bulkhead. Mine's just as bad mind you, and also dates from 2009. Was the mastic guy having a bad day, or are they all like that ? Has anyone poked/peeled theirs off and done a neater job ?
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Peter, it's not a modern 'mastic' as we know it that cures

It's a deliberately non-setting goo, laid in a thin strip, that I used to know as dumdum, it works very well on classic cars which twist / shrink / expand with the seasons & driving, hence it continues to extrude from joints

You can clean it off, but that in itself is a messy job, I use cloth offcuts and sort of pinch & pull

Jon M