What’s the difference between glue and epoxy?

You might have heard the word “epoxy” floating around and wondered what it means. Or maybe you know what epoxy is, but you’re not quite sure how to use it.

In either case, this article is for you! We’ll go over the difference between glue and epoxy, as well as how they’re used and when they should be applied.

Is epoxy better than glue?

Epoxy is best for:

  • Bonding metal, glass, and most plastics.
  • Filling gaps. Epoxy works well in filling large gaps that are straight across a surface because it’s thick enough to fill the space and it dries with enough flexibility to allow repeated handling before curing completely.
  • Bonding uneven surfaces (like putting an epoxy bandage on your finger when you cut yourself). The adhesive works well over uneven surfaces because of its ability to expand or contract as necessary depending on temperature changes throughout the curing process; this allows for better adhesion at colder temperatures than with glues that rely on pressure alone for adhesion.
  • Bonding porous surfaces (like wood where there are cracks or other imperfections). Wood can absorb moisture from humidity or rainwater; this causes expansion which makes the wood swell up until it splits apart at weak points like knots and grain lines in oak furniture pieces like tables or chairs—but epoxy fills these spaces so they don’t have room to swell up anymore!

Can I use epoxy as glue?

You can use epoxy as glue.

Epoxy is used for bonding, coating, filling, and sealing a variety of materials. In its solid state, epoxy is a plastic composed of two or more components that are mixed together to produce a solid substance.

This can be done by hand with one-part epoxies or with the help of an adhesive injector machine with two-part epoxies.

Is epoxy resin the same as glue?

Glue is a catch-all term for any kind of adhesive, but when you’re shopping for hobby materials, you may see epoxy resin as one option among many.

It’s true that both epoxy and glue are types of adhesives—but there are also some differences between the two:

Is Gorilla Glue the same as epoxy?

Gorilla glue and epoxy are not the same things. While both products can be used to seal cracks in a boat, gorilla glue is more commonly used on smaller objects or surfaces. Epoxies are often used to repair larger sections of wood and are generally more expensive than gorilla glue.

The main difference between these two products is that epoxy is stronger, waterproof, and permanent (it doesn’t harden over time).

So if you have a crack in your boat’s hull that needs fixing quickly without having to worry about it later down the road, go with epoxy instead of gorilla glue. If your problem isn’t so big or immediate, gorilla glue could be a better option since its bonding power isn’t as strong as that of epoxy—but only when used correctly!

Is epoxy the strongest glue?

Epoxy is a great glue that’s incredibly strong, but it isn’t the strongest of all. It’s not as strong as some other adhesives, such as super glue or gorilla glue.

Epoxy can also be weaker than wood glue (depending on which type of wood you’re working with).

Additional Resources:

What is stronger Super Glue or epoxy?

Super Glue is a true liquid epoxy, while epoxy usually refers to the two-part adhesive. Super glue sets faster than epoxy, which takes time to harden and cure.

While there are many varieties of super glue on the market these days (including a few that self-heal), we’ll be using standard cyanoacrylate for this experiment. The main reason for choosing this particular type of adhesive over others is because it sets so quickly—about 30 seconds or less.

While this makes it great for quick fixes in an emergency situation, particularly those involving your pets or children (think emergency cat ear surgery or finger reattachment), it does mean that you have only about 30 seconds before your repair has set completely—so if you want something more permanent than just holding together pieces until you can fix them properly later on,  then I’d recommend using some kind of two-part epoxy instead. Find a line of both super glue and epoxy products at https://www.gluegun.com/collections/super-glue.

Will epoxy bond to epoxy?

Yes, epoxy can bond to epoxy. In fact, epoxy can bond to just about anything, including wood and metal.

When you are building a project with wood and the wood has gaps between pieces or the surface is uneven, then you should fill in those gaps before applying a sealer or paint. Epoxy works great for filling large voids and creating a smooth surface.

Epoxy is not as strong as glue by itself though so if you need something that holds very well without cracking over time then you’ll want to use CA glue instead of epoxy alone (see below).

Is epoxy glue waterproof?

Epoxy glue is very water resistant, but it’s not waterproof. If you’re using epoxy glue and want to make sure it’ll last through the elements, you will need to seal it with a top coat.

This can be done with another layer of epoxy or with a spray-on clear coating (such as lacquer).


Epoxy is a type of glue, but it has many different uses. It’s used to make laminates, fill gaps and create chemical bonds. When you’re working with epoxy, it’s important to be meticulous in your application. If you mix the two components too quickly or fail to mix them well enough, your project could end up failing completely.

Epoxy can be purchased at hardware stores and home improvement centers in both liquid forms and as a two-part resin system that cures when mixed together on the surface where it will be used.

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Martin Flood

Martin Flood has been working in the construction industry for over 20 years as a general contractor with expertise in remodeling projects that are large or small. He has furthered his career by specializing in epoxy resin flooring, providing excellent service to both commercial and residential clients. Martin’s experience enables him to offer professional advice on how to choose the right type of project based on your needs and budget.

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