Even so that doesn't mean you let it skin over before assembling the parts. Just like your screen shot indicates you assemble wet, and the "skin over" part refers to the edges that ooze out. If the RTV has skinned over before the parts are assembled there will be no adhesive bond between the mating surfaces.
Originally Posted by Snagglefoot
Now you have. I spoke with the Permatex rep. When you start to tighten after the waiting period, and see anything ooze, you stop and wait some more. Ultra grey uses humidity in the air to set. The lower the humidity the longer you have to wait. Here's a screen shot of the instructions.
Originally Posted by The Critic
That pan should seal fine with RTV. Bolts need to be torqued immediately with Toyota RTV, not sure about the Permatex product. But I have never heard of anyone letting RTV "skin" before tightening the bolts.