But "Foam in a can" IS future RUST from the inside.

All that foam will do nothing but trap the moisture on an already non rust-protected surface (per the original PO's post, #5).

Treat the inner surface with a good rust preventative or at least a good coating of paint and maybe foam in a can won't be trouble down the road. But anywhere where you can expect moisture from condensation, that foam in a can is bad news.

2¢

E

i wish i took pictures during the install but i think it will serve its purpose. i'll keep monitoring the vents. its unlikely this car will see the rain since it will be a garage queen. it was done mostly to seal out the exhaust fumes.

but the rust issue, if you think about it, series 1 cars had the inner hatch vent area untreated, rain constantly leaked in and down the snorkel. that area was in constant contact with water.

ideally the best thing to do is swap out the hatch but i like the fact it’s a series 1, despite the design flaw. on a side note, my inspection lids have vents (another dumb idea back in the day -.-). i had to fabricate a rubber drainage system to protect the battery terminal.

Foam in a can is NOT "Carpenter in a can".

yes it is

If you have a credit card size gap, there WILL be fumes. Try Black Dragon for the gasket, or look up the Kia Sportage thread. Be safe, get it repaired.

Bonzi Lon