What are two requirements for glue to work?

Answer 1

Make sure the surfaces to be joined are spotlessly clean, and both the surfaces and glue at a good ambient temperature ( ie not very cold or very hot)

Answer 2

The first requirement is that glues must be able to creep or flow into the

crevices of the two objects that are being attached together. At the microscopic

level, even surfaces that appear smooth will, in general, be very rough - full of

mountains and valleys and crevices. The glue has to be able to seep into these

crevices. The second requirement is that the glue must be able to change its

molecular structure so that it changes from a fluid to a solid - it must harden.

Answer 3

Two requirements you need for glue to work, is adhesion and cohesion. Adhesion allows the substance to stick onto the surface. (preferably a flat, smooth surface, but also not too smooth) Cohesion allows for the substance to stick to itself and form a strong bond. This allows for glue to stick thing together.

Answer 4

For glue to work effectively, two key requirements are proper surface preparation and adequate bonding pressure. Surface preparation involves ensuring that the surfaces to be bonded are clean, dry, and free of any contaminants that could interfere with adhesion. Bonding pressure helps to ensure intimate contact between the adhesive and the surfaces being bonded, allowing for optimal adhesion and bond strength.

Answer 5

Oh, dude, you need two things for glue to work: first, you gotta have surfaces that are clean and dry. I mean, come on, nobody wants a glue that's trying to stick to dirt or water. And second, you need to apply some pressure after you stick things together. It's like giving the glue a little encouragement, you know? So yeah, clean and dry surfaces plus a little squeeze, and boom, you're in business.

Answer 6

Well, in order for glue to work its magic, it needs two things: clean surfaces and some time to set. Make sure the surfaces you're gluing are free of dirt and grease, and then give the glue some time to bond the materials together. Just like painting a happy little tree, patience and preparation are key to a successful project.

Answer 7

Well, honey, for glue to work, you need two things: surfaces that are clean and dry as a bone. If you try sticking stuff together on a dirty, wet mess, you might as well be using a wet noodle. So, clean it up and dry it off, and that glue will stick like a champ.

Answer 8

adhesion and cohesion

Answer 9

Horse and water