Aerosol Undercoating

Whats up guys? I just wanted to ask you guys which brand of Aerosol undercoating is good to buy, and if they're even worth a damn. I just wanted something to seal up the underside of my tubs, and maybe spray my gas tank with it. Thanks for any help guys.

Duplicolor is the only one Ive used that dries all the way. Its not great but it will get you by in a pinch.

i have some made by wurth and it actually dries really well and looks almost like rhino liner, but not as thick. Hit me up for prices

Ive used the 3M and it seems to work pretty good.

3M will get the job done... it just takes time to dry... maybe heat would help it dry faster and completely!?

^^^ 3M works good.