Radiator/Undertray Foam Options
 

Hey Rotorheads, just wondering where I should get insulation foam. The foam on my undertray is pretty tired, and I'd try to put some around the radiator too. Not sure what we've had good experience with. Figured I'd ask before I shot in the dark.

I just use upholstery foam in the gaps around the radiator and IC duct. Been there for years w/no issues.
Never had to mess with the seals on the undertray but can’t think of a reason it wouldn’t work there as well with some 3M spray adhesive

i just go to the hardware store, they have a selection

Haven't had to deal with this on my FD yet, but what worked well on my FC to replace the foam strip under the oil cooler was a section of like 1.5"x1.5" high density foam strip I picked up at the hardware store. It's the same HVAC stuff used to seal gaps around window A/C units. Glued it to the bottom of the FC oil cooler with the mentioned 3M spray adhesive after getting to cooler really clean & dry.

I've used roll bar padding to seal the tray and around radiator openings. Held in place using weatherstrip adhesive. Cuts and shapes easily. Has held up well with time.

Jack