Yes, just one layer you can use two if you want, but this glue is really very strong.
If you search a extended wearing, this glue is perfect for you.
No dirty/brownish for me after a while, with heat she liquefies in three weeks, but she remains transparent even.

I wait ten minutes after a layer, this glue dry quickly. Be carefull, it's very hard to detach system freshly glued, you must be very precise when you put it in place.

Before use this glue, don't forget to test it on your skin.