I used 3m's gun for it, the stuff is a cream color, it's not the rubberized black stuff.
I seem to recall it being 30-40 a quart and I used 3.5 quarts including the hatch. Prep with 180 on a DA, make sure you tape off when the window gasket goes, the bottom side I did really far away so it came out with far spacing and such, top side i did a nice even coat. Let it flash and base coat right over it
https://www.amazon.com/3M-08874-Rock.../dp/B000PEPJKW