Thanks for your answer, Richard.
I have red all the previous threat's concerning firewall mats
And for once I have a little bit of fortune, because in the Netherlands they sell 'The Right Stuff'
So that will be a task for the coming weeks.
If I may ask : should I replace the backing material?
It's not worn or torn, but it doesn't smell like 'lily in the valley'
In case it would better be replaced (= the backside), does anyone know a place where I can buy the accurate thickness?
@jswoody : car was built 01/12/67
Thank you all for your time and answers
Kind regards,
Jeroen