Radiator Undertray Material

[fjmuurling]

I need to do some repair work on the Radiator undertray (part of the AC Renewal process) and therefore I would like to know if a polyester resin or an epoxy resin was used so I can stick to the same type of stuff. Anybody has any idea ??

Freek

[tinywillyuk]

Not sure on a 1990 model but when I dropped mine out it was marked as being ABS.

HTH

[trackmagic]

On my 1983 it is fiberglass which I would use polyester resin if I needed to repair it.

Jeff

[fsrowsell]

My 92 is also fiberglass...

[mr.oogieboogie]

pretty sure my 1994 s4 is fiberglass

[fjmuurling]

Thanks for the answers,

mine is fiberglass for sure however but i'm not sure about the bonding resin. The problem is that if polyester resin is used originally you can use polyester resin or epoxy resin but if the undertray is made of epoxy resin than you have to stick to epoxy resin only. The conclusion comes to mind to use epoxy but it is much better to use the same stuff.

Freek

[Malc Holmes]

I made extensive repairs to the rad tray on an 89 SE using polyester resin back in 2004 and its still fine. I am sure normal polyester resin will be just fine.

Malc

[fjmuurling]

Malc thanks for the info, I will do the repair with polyester.

Freek