Not sure why you would need to tie a bandana for that long. I get a rock solid attachment in less than a minute with this technique. With Got2b Ultra it would take a lot longer to get a solid bond but with the chemical reaction between these two gels it's only seconds and it's a tight bond. I mean super tight. Every bit as tight as ORWG but you still get a little play time to adjust unlike ORWG. It's the combination of these two gels that makes it such a strong bond. WAY stronger than either of these by themselves. Just try mixing a bit of the try together in a bowl and you'll see exactly what i mean. It's like super tough rubber cement and it becomes water resistant too. You have to let the poly soak in water for a few minutes before you can clean it off the poly. But it does come off easily with shampoo and water after you let it soak.