Project 16v

[MarkS]

http://www.halfords.com/webapp/wcs/stores/servlet/SearchCmd?srch=waxoyl&x=0&y=0&action=search&storeId=10001&catalogId=10151&langId=-1

People use it to protect metals from rust, and during winter people usually apply it liberally to the bottom of their car with a big brush to stop corrosion from all the nasty salt etc thats on the roads!
Also a lubricant too I believe

[hobbes]

Cheers for that.  so, if i take up the carpet is it best to paint some of this stuff on?  if i take up the carpet will i break any seal/foam/whatever underneath that will need repairing and/or replacing?

[MarkS]

I'm not too sure about painting it on under your carpet but its a good idea to get actually underneath your car and apply it
I had to do it with a spray can and a cloth, not fun. Use a brush and put your car on axle stands so its stable

[danny_p]

still a fair bit todo.  good point about the carpet, the interior has a musty feel.

Oh dear! Get the carpet out for sure! If you've had a water leak then you'll probably have to replace the sound deadening, you can get replacement sound deadening from places like B&Q, get the builders grade stuff   

Went B&Q yesterday to get some of the above, they just scratched their heads in confusion! What would B&Q call the stuff???

if it's the stuff i think your on about,   it's soundproofing insulation  a type of itchy scratchy insulation  you put it inside stud walls.    comes in slabs   problem is it's 50+mm thick