Exxxxpandafoam

is truly amazing stuff.  Quite incredible.  Julian spend a lot of time installing the rear seat just right, treating it with the heat gun to mould the fibreglass to the right shape to fit the plane, drilling dozens of holes so that it could be held securely in place while the epoxy dries, removing them, fibreglassing the join etc., and then along came the new tin of expanda foam.  It smells funny.  It looks funny.  You put a bit in, watch it expand, put a bit more in, watch it expand, and finally you've used up the entire tin 'oh no it's not enough I'll have to go buy some more!' then you check on it an hour later to see the foam mushrooming out of the holes in the seat that had been drilled to put the foam in.  So you remove the mushrooms and keep doing so for the next 2 h.  The next morning the seat is all bulged up, so that anyone sitting on the rear seat feels like they're on a pop ball.  Oh oh.  So drilling of more holes to let more of the still wet foam bubble out.  Apparently the foam can stay wet for a good 10 years.  We just hope that our seat stays level.

And here is Julian taking out the self tapping screws that held the seat back in place whilst the epoxy was setting.