Marvel DC Crossover

Is Spiderman's web shooter possible  ?

Tom Holland as Spider Man / Peter Parker Andrew Garfield as Peter Parker / Spider-Man Tobey Maguire as Peter Parker / Spider-Man

Yes it is. As designed - you need Super Strength to use it.

There are materials now that are liquid under pressure that when exposed to air change their properties and can behave like webbing.

You would just have to research the proper combination to produce something that "shoots out" at high y because of the extreme pressure velocitit needs to be under to work.

I have no idea as to what kind of chemical can be stored as a liquid, exuded into a web-like config, be strong enough to attach to say a car, and allow you to drag a car by it,... then dissolve in an hour.

But I do know that it is possible. I doubt anyone will ever put the money required to figure out exactly how.