Can anybody recommend a good seam sealer in the US?

[RMcG]

I have had a serious water leak in the spare tire well, see my previous post (https://www.yarisworld.com/forums/showthread.php?t=63063&highlight=leak) if interesed. Now that the weather is warming up here in the US, I hope to try to seal various candidate leaks. Based on reading other posts, it appears that it is better to just seal as many candidate seams/leaks as possible, rather than laboriously trying to identify a particular leak or leaks with various testing methods. Pictures of possible candidate seals/leaks are attached--these pictures are not from my car, but from other posts on this forum dealing with water leaks.

A relative recommended 3M Dynatron Seam Sealer sold on Amazon and by various auto parts stores. See Amazon link here (https://www.amazon.com/Dynatron-550-Auto-Sealer-Caulk/dp/B005RNFBMC/ref=sr_1_3?crid=1OH6HQLB197RB&dchild=1&keywords=3m+dynatron+auto+seam+sealer+caulk%2C+550&qid=1620515129&sprefix=3m+dynatro%2Caps%2C239&sr=8-3). The manufacturer, 3M, recommends that the temperature be persistently above 50 degrees for several days for the seal to cure properly (and not leak itself).

Is 3M Dynatron Seam Sealer a good choice?

Does anybody have any idea how many 12 ounce tubes of this 3M Dynatron seam sealer I might need based on looking at the pictures, knowing I want to do right and left sides?

Any other comments will be welcomed.

Thanks,

R.

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[Foxdie]

I had a 2019 Yaris sedan. The car was amazing and feeling very good. About seam sealers, I cannot help you, because I didn't find too. For my case, I found this topic https://sealwithease.com/what-is-the-difference-between-concrete-sealer-and-waterproofer/ and understood that I like the waterproofer more than the sealer. That's just my opinion. But you could read it too, and you can see what's your favorite one.