Sealant for sealing fenders to inner fenders

[Sedanman]

What did you use? The factory used a spray foam type that didn't harden and I can't seam to locate what I need.

 

[Brad4406]

3M Seam Sealer is what I used on my minitub. You can apply it with an acid brush.

 

[zkx14]

I used windoweld rope caulk

 

[Sedanman]

seam sealer hardens

 

[1968FormulaS340]

They have one part urethane seam sealers that stay flexible, don't expand and offer great corrosion protection. For example:

Fusor® 802HD/804HD/805HD/806HD High Definition Sealer | LORD Corp

The window weld rope caulk, as mentioned above, would work just fine as well.

 

[RedFish]

Adhesive backed foam weather strip on a roll works too. This is what they used in the earlier builds.
Lay it, poke bolts right through it.

 

[famous bob]

Adhesive backed foam weather strip on a roll works too. This is what they used in the earlier builds.
Lay it, poke bolts right through it.

black "ultra" sillcone works great. a little hard to get apart in places. probly take a tube per side .?

 

[tedsweet]

no silicone

 

[MOPARMITCH]

3M Strip Calk....Comes in white or Black...

 

[1968FormulaS340]

I want to comment of some of the options mentioned here.

Foam tape: this stuff can trap moisture, better alternatives are readily available.

Silicon: in my opinion, the worst choice. Non paintable and and incredibly difficult to remove. Better alternatives are available, in fact, I would use nothing at all before using silicon.

If you want to go super inexpensive, you can get non silicon, urethane chalking at any hardware store or Walmart.