Seam Sealant

[SodaShopNick]

I have a Cavalier 72 that has not been restored, but is fully working and running in my garage.   I have had to do a few things on it like replace the overload relay, wiring harness and put in a tub liner from Funtronics over the rusted out one.   The problem is for this tub liner replacement I need to put some sealant between this tub liner and where it means the tub, but I am not sure what to use.  I did some searching on the site and found several recommendations to use a seam sealer like is used with automobile work.    So, I did some searching for seam sealers and found everything from brush on, apply from a tube, apply from a caulk gun to even some tape made by 3m.  If seam sealer is the way to go are there any recommendations on what type to use?  Also always, thank you 

[SodaShopNick]

Anyone have any thoughts/recommendations?   Any responses would be appreciated.

[Jim]

I would use Marine 5200 caulk/adhesive.
Prepare some way to keep the new metal compressed down, say a piece of wood with some weight on top...
Pay particular attention to areas that may not want to stay down and address with a little more weight...
Make sure the original liner bottom is as clean as possible prior to applying adhesive!
Apply small circular dabs of 5200, say the size of a quarter, in areas that need to stay down, like around the drain hole. Remember, we need the condensation water to still run to the drain hole!
Let this stand/dry/cure over night, then apply, as small as possible while still sealing the edge of the new metal to the corner of the original liner, a bead of 5200 around the complete perimeter of the new metal pan.

[SodaShopNick]

Jim, thanks for the detailed action plan.  I will give it a try. 

[SodaShopNick]

Jim - I wanted to update you that I was able to get some Marine 5200 caulk/adhesive a few weeks ago and applied it around and under the tub liner replacement like you suggested and it is working like a champ.  It is only a band-aid, but a good one for now.  Thanks!!!