Finaly I found it: The heat shapeable foam board is:
BASF Basotect TG
Its heat shapable, flame resistent and sound dampening. Used in Aircrafts (seats for Boeing etc), cars (sound) and Train systems.
Sold as board in various thickness and sizes. It will take and hold shape and still be kind of soft and elastic. Coverd with vinyl and You got Your perfect crashpad…
Anna, How do you think we could form this on a DIY basis? It seems the ideal material but the dash crash pad is a quite complex shape. ie 3d curves and various thickneses.
The base material seems ideal but who can shape it for us?
Dave
If the amount of heat required is not too excessive, surely a mould made from grp and timber or steel could be used (grp for shape , timber or steel for reinforcement)