Driving from San Antonio to Omaha in June with the dog and the kids, 4 month old, 4 year old and the wife. I'm looking to make it as comfortable as possible and bought some 3M pro grade Rubberized undercoating. I figure that atleast it will look good if I spray the wheel wells and hope that it will help with the sound also. But I'm not sure if I can spray in the door panels and floor? Has anyone used this? It's extremely flammable but don't figure it would be dry. I'm mainly worried about the smell after drying, if any. Also the prices I found for OE weather stripping seem pretty steep, atleast $370 for around door for all doors on mitsubishiparts.com. Has anyone used anything else, I figure OE is the best way to go but would rather not spent that much. Thank you.

Don't know anyting about the spray, however I also needed new stripping for my rig also found the price unacceptable, so I found an old rig that matched mine at a salvage yard the stripping in great condition still. I paid $5.00 each. just removed the old, installed the new, total cost plus gas and tax about 15 to 16 bucks. good luck on your trip.

If you spray do it quick- It will stink bad for a while. Some of the rubberized stuff never dries completely. Stays tacky. Maybe test spray spot and wait and see.

I would recommend using 3M brand ruberized undercoating, it costs a bit more than the generic store brand stuff, but it lays on better and seems to be better quality. The only place I would worry about applying it would be above the catalytic converter or close to the exhaust pipes, as the heat from these may melt it.

The spray undercoating can be applied inside the doors, on the roof panel above the headliner, inside the quarter panels, etc. Once it dries, most of the smell will go away on the black type undercoating. 3M also makes a clear undercoating, made to be sprayed on the outside of the rocker panels, ete., then overpainted with the body color, "Body Schutz"? or something like that, that works well and dries with no odor. It costs alot more than the tarry type coating, though.

For more noise reduction, I've used fiberglass insulation, like for houses, stuffed into body openings behind the trim panels, to quiet some of the noise in vehicles. I also have added an an extra layer of carpet insulation felt under the OEM carpeting and found it really helps with road noise. The insulation carpet felt can be glued to the inside of the roof panel, above the headliner, and inside the quarter panels with strong contact adhesive, too.

Hope this helps!

I used a can of the 3M on my driver's side door, no smell, looked great and dried quick in the sun. But I plan on trying some Kwik foam for more of a filler. I don't see how the 3M would do much in the doors for niose. It did only say it adds sound deadening. So I'm hoping the Kwik Foam will be noticeable with all doors filled. I've been looking at actuall sound deadening sheeting also, I'll put that on the roof and floor along with my new speakers. Is there an easier way to get to the rear speakers besides taking the panel out? I didn't see any other way. Thanks.