Those are contact cements, meaning you have to spray both surfaces, let them tack for 5 minutes or so, depending on temp and humidity, and position carefully and you stick together. There is no adjustment after they make contact, if the adhesive is ready. Pick a hot day with low humidity for the best results.
I think the 3M is labeled Spray 77, and Spray 90. S77 is more of a floral arrangement type spray, and can be pulled apart, and is therefore not a good application on a boat that is going to get hot inside in the summertime. S90 is more permanent, but as I said, sticks on contact and is not adjustable. If you have a flap, or a hanging piece, work from the middle to the edge.
You don't want to breath the vapors. Spray both sides, leave for ten minutes, and come back and stick together. Leave for the rest of the day.