Do you mix epoxy resin with hardener?

This article will help you to understand what epoxy resin is, how it works and why it should be mixed with hardener. We’ll also take a look at the most common epoxy hardeners available on the market today, as well as some tips for mixing them safely and efficiently.

Epoxy resins are versatile materials that are used in a variety of applications including construction, woodworking, and marine industries.

They’re made up of two parts: an adhesive resin that holds the other components together; and a catalyst or curing agent (the hardener) which reacts with moisture in order to form an incredibly strong bond between those components once they’re cured or set.

There are many different types of epoxy resins on the market today but all share one thing in common: if not properly mixed together before being applied then they won’t cure properly!

The aim here is to get both parts blended together so that no bubbles remain trapped within them – this can be done manually using spatulas or plastic spoons dipped into each jar individually until evenly combined, but if working with large batches then we recommend investing in an electric stirrer instead since these can handle larger quantities more effectively than any other method available today (plus they’re cheaper too).

What do you mix epoxy resin with?

The basic epoxy resin is a mixture of two parts resin and one part hardener. The curing agent, which can be either an acid or an alkali, is added to the hardener in order to speed up or slow down the reaction time.

The catalyst is also added to accelerate the reaction between the two components of epoxy resins.

Can epoxy hardener be used alone?

Epoxy hardener is not a stand-alone product, but instead one of two components of an epoxy resin system. The other component is the epoxy resin.

It’s worth noting that while epoxy hardener and mixed epoxy resins are often sold together in kits, they should be used separately. The reason for this is that the resin can only react with hardener when they’re both mixed together on a certain ratio—otherwise, it won’t work as intended!

When you get your kit home, make sure you read all instructions carefully before getting started with mixing any chemicals together (unless you’re going for an accidental science experiment).

What is the hardener for epoxy resin?

An epoxy hardener is a liquid that causes epoxy resin to solidify. The two main types of epoxy resin are room temperature curing and heat curing, which require different kinds of hardeners.

Room temperature-curing epoxies typically require an activator, which is often referred to as a catalyst or catalyst promoter. Heat-curing resins usually need a catalyst promoter as well—that’s the same thing!

The difference between them is that one type works with the resin to create bonds at room temperature (activator), while the other speeds up the time it takes for those bonds to form when you apply heat (catalyst promoter).

How do you mix epoxy and hardener?

If you’re mixing epoxy and hardener, it’s important to know how much resin and hardener to use. If you use too much of one or the other, your project will either be weak or crack easily.

Here are some tips for mixing epoxy resin:

  • Measure out equal amounts of both the resin and hardener in a plastic container at room temperature. You can measure them with a measuring cup or scale if necessary—just make sure they have identical measurements so there are no discrepancies when you’re ready to apply them onto your surface!
  • Mix the two together slowly until they’re thoroughly combined. This will take about 20 minutes (mixing times vary depending on what type of epoxy you’re using). Make sure every last bit is mixed together; otherwise, certain areas could end up being less hardened than others, which will cause structural issues later on down the line (and possibly lead to cracks!).

How do you mix resin with hardener?

Mixing the resin and hardener is one of the most important steps in mixing epoxy resin. For best results, ensure you are mixing both compounds thoroughly so that all of their components are well combined.

To mix the two compounds together, mix them in a disposable container using a stick or similar tool to stir them until they become fully mixed and uniform.

What happens if you add too much hardener to resin?

The more hardener you add to epoxy resin, the faster it will cure. However, too much hardener can result in a brittle epoxy that won’t hold up as well as it should. If you’re using an epoxy resin with high viscosity and adding extra hardener, then your ratio of hardener should be about 1:1 (1 part resin to 1 part hardener).

If you’re using a low-viscosity epoxy and adding extra hardener, then your ratio should be about 2:3 (2 parts resin to 3 parts hardener).

Will epoxy harden with too much hardener?

You’re not going to get epoxy resin to harden with too much hardener. That’s because it won’t harden, period. So if you add too much, the mixture will go hard—but it won’t be strong or durable enough to withstand anything more than normal wear and tear.

The main reason why this happens is that epoxy resin needs a certain amount of water in order to cure correctly. If there isn’t enough water, then there won’t be enough chemical bonds formed between different molecules in your mixture (also known as crosslinks) and your end result will be a brittle mess that can break apart when subjected to stress or pressure.

But adding too much water might also cause problems—namely heat generation due to an exothermic reaction between chemicals in your mixture!

How does epoxy resin and hardener work?

Epoxy resin and hardener work by reacting to form a solid plastic. The hardener and resin must be mixed together in the correct proportions for this chemical reaction to occur. Once you have done this, you should mix thoroughly so that all of the resin is coated with hardener.


You’ve learned a lot about the different types of epoxy, but did you know that there are 2 different hardeners? They can be used with both, so knowing which one to use is important.

The most popular choice for boat owners and do-it-yourselfers is the easy-to-use resin/hardener combo kit. It’s easy to mix together, dries quickly, and gives you plenty of time to work with it before it sets up. If you’re looking for something more permanent or if you have a large project in mind (like building an entire deck), then we recommend going with a single part epoxy resin.

They’re usually stronger than the combination versions because they set up much more slowly so there’s less chance of sagging or cracking.

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