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Going Green with Resin: Sustainable Ways to Dispose of Leftover Resin

Disposing of leftover epoxy resin can be difficult, especially if you’re concerned about the impact resin waste has on the environment.

Incorrect disposal of resin waste can harm the environment, pollute water sources, and contribute to the global waste problem.

I’ve compiled a guide to help you with the proper handling and the correct disposal methods in order to dispose of resin waste in a responsible and eco-friendly manner.

In this article, we’ll explore the environmental impact of epoxy resin waste, best practices for cured epoxy disposal, DIY projects and artistic uses of epoxy resin waste, and eco-friendly tips for resin users. Let’s get started!

Different Ways to Dispose of Unused Resin

There are several different ways to dispose of waste resin, including:

  1. Solidify and Dispose of Safely: One way to dispose of leftover liquid resin is to let it harden into a solid form and then dispose of it as regular trash.
  2. Recycling: Depending on the type of resin, it may be possible to recycle the waste by melting it down and reusing it. Unfortunately, epoxy resin is a hazardous waste not a type of resin that can easily be recycled.
  3. Composting: Some resin materials can biodegrade over time and can be composted, allowing the resin to break down naturally. Unfortunately, epoxy resin is not one of these resins.
  4. Upcycling: Waste resin can be used to create a variety of artistic and practical items, such as jewelry, coasters, keychain shakers and other decorative objects.
  5. Energy Recovery: Resin waste can be diverted from landfills by using energy recovery systems that convert the waste into usable energy.
  6. Hazardous Materials Disposal: Leftover or uncured resins are considered hazardous waste, it must be disposed of in accordance with the regulations of the local and federal authorities the same way you do with other hazardous materials.

It is also a good idea to always cap resin containers before disposing

It’s important to research and understands the proper disposal methods for the type of resin you are working with to ensure you’re disposing of the waste in an environmentally responsible way.

Environmental Impact of Resin Waste

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The Dangers of Improper Disposal

Improper disposal of resin waste can have a significant impact on the environment. When cured epoxy waste is dumped in landfills or released into water sources, it can contaminate the soil and water, making them unsuitable for plant and animal life, making proper disposal extremely important. This contaminated soil is very costly and difficult to decontaminate, and removal only prolongs the issue as the hazardous material is only moved to a different location.As cured epoxy is developed using hazardous materials, unsafe disposal of that hazardous waste material can leach those harmful chemicals into the environment, leading to soil and water pollution. Furthermore, the fumes released by uncured resin can be toxic, posing a health risk to people and animals exposed to them.

Resin Waste and Pollution Prevention

To prevent the negative environmental impact of resin waste, it’s crucial to adopt responsible proper disposal practices for hazardous waste. This includes minimizing leftover cured epoxy waste by only mixing the amount needed for a particular project, avoiding unnecessary waste. Resin users can also explore sustainable alternatives such as water-based or bio-based resins that are less harmful to the environment and creating less hazardous waste.

Landfill Diversion and Other Eco-Friendly Options

To divert hazardous waste caused by cured epoxy waste from landfills, consider recycling or upcycling options. Some resin products can be recycled and made into new products, while others can be used to create art and craft projects.Composting is also a viable option for resin waste, as some resin materials can biodegrade over time. this is dependent on the type of resin that you are using Additionally, cured resin waste can be diverted from landfills by using energy recovery systems that convert the waste into usable energy.By exploring sustainable disposal options such as landfill diversion, recycling, and upcycling, resin users can play their part in protecting the environment.

Best Practices To Dispose of Resin Safely

Safe Handling of Unused Resin

The first step in responsible resin disposal is knowing how to handle epoxy resin safely. Always wear gloves and a protective mask when working with resin waste.

To minimize the amount of hazardous waste reaching landfills, avoid mixing more resin than you need for a particular project.

Unused mixed resin will release heat and harmful fumes until it has fully cured, due to this waiting until the resin has cured is extremely important and will reduce the risk of fire in a trash can if your not careful.

Unmixed resin can be saved for later use, provided it is properly stored according to the manufacturer’s instructions.

Recycling and Upcycling Options

At the present time epoxy resin is not recyclable because of the cost-benefit ratio. Meaning that for the effort of recycling, there is not enough return to be beneficial.

The ratio considers the cost of trying to recycle the epoxy into a new product for resale in the market.

A far more viable option is trying to upcycle your leftover resins. the process of upcycling is beneficial in two ways the first being that by reusing resins that have been used in previous projects you divert waste from going to landfill.

The second benefit is that the cost of your projects goes down because you are not using a large amount of fresh resin for each project.

You can upcycle unused cured epoxy by using it as a void filler for larger projects like countertops and resin tables . A void Filler is a material such as cut up cured resin waste that you use to fill a large areas of space in a project instead of using fresh resin.

The filler can be anything including cured epoxy from previous projects as long as it cannot be seen through the new resin.

Another way is to have your work flow process where you have a smaller side project, this is where molds are ready for casting a small project like jewelry and shaker charm inserts so that you pour any unneeded resin from your main project into your smaller side project avoiding discarding the unused resin in the trash or trying to find another way to dispose of it.

Composting of Resin Waste

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Some resin materials can biodegrade over time and can be composted, allowing the resin to break down naturally.

It’s important to note that not all types of resin are compostable, so be sure to check with the manufacturer before attempting to compost.

Additionally, you should only compost resin materials that are made from natural and organic components.

If the resin contains any toxic substances, it should not be composted.

In conclusion, it’s important to dispose of waste resin in a responsible and eco-friendly manner.

Best practices for resin disposal include safe handling, recycling and upcycling, and composting and biodegradation.

By following these practices, you can minimize the environmental impact of resin waste and contribute to a more sustainable future.

DIY Projects and Artistic Uses of Resin Waste

Upcycling Ideas for Leftover Resin

Upcycling leftover epoxy resin is a great way to give it a new life and prevent it from ending up in landfills.

Resin waste can be used to create a variety of artistic and practical items. For example, you can use leftover resin to make jewelry, coasters, and other decorative objects.

You can also use it to make tabletops, countertops, and other surfaces by pouring the resin over the desired surface and allowing it to harden.

Examples of Resin-based Art and Crafts

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Resin is a versatile material that can be used to create a variety of stunning art and crafts.

For instance, you can use resin to make unique paintings by mixing it with paint and pouring it onto a canvas.

You can also create resin sculptures and 3D art by using molds to shape the resin into your desired shape.

Resin can also be used to make colorful resin river tables and coasters, which are increasingly popular in home decor.

Tips for Eco-Friendly Resin Craft Projects

While working with resin can be fun and rewarding, it’s important to keep in mind its impact on the environment.

To minimize the environmental impact of resin art and craft projects, you should consider using eco-friendly resin products.

Some manufacturers offer eco-friendly options that are made from natural materials and are biodegradable. Additionally, you can use eco-friendly pigments and dyes to color your resin projects.

You should also take care to dispose of any waste resin in an environmentally responsible way.

In conclusion, upcycling waste resin can be a great way to get creative and reduce waste.

With a little imagination, you can use resin waste to create a variety of unique and practical objects.

When embarking on a resin art or craft project, it’s important to keep the environment in mind and take steps to minimize the environmental impact of your project.

Resin Covered Tray

Eco-Friendly Tips for Resin Users

As the demand for resin-based products continues to grow, there is an increasing need for responsible and sustainable practices in the resin industry to dispose of resin and other hazardous materials safely.

Resin users can take several eco-friendly steps to reduce their environmental impact and help promote a more sustainable future.

In this section, we’ll explore some eco-friendly tips for resin users.

Minimizing Leftover Resin

One of the most effective ways to reduce the environmental impact of leftover cured resin is to accurately measure the total capacity of the resin your project requires and match the amount of epoxy resin you prepare before you mix the resin and hardener in separate resin containers in small amounts.

Ideally, when mixing resin and hardener it is best to mix in smaller amounts, this will help with overestimating the amount of resin needed.

Overmixing or overestimating the amount of resin needed can result in leftover resin that will need to be disposed of.

By minimizing leftover resin, you can reduce waste and save money.

Blue Resin Poured Into a Mold

Proper Storage of Unused Resin

Proper storage of unused resin can also help reduce waste and prolong the life of your resin materials.

Resin should be stored in a cool, dry place away from direct UV light and heat sources.

It’s also important to store resin in airtight containers to prevent moisture from entering and causing premature curing.

By storing your resin materials properly, you can reduce the need for frequent replacements and minimize waste.

Overcrowding of Stored Resin

Sustainable Sourcing of Resin Materials

Choosing sustainably sourced resin materials is another way to reduce your environmental impact as a resin user.

Look for resin products that are made from renewable resources or recycled materials.

Additionally, consider the environmental practices of the manufacturers you buy from. Do they prioritize sustainability and responsible production methods?

By choosing resin products that align with your values, you can help support a more sustainable and responsible resin industry.

In conclusion, there are several eco-friendly tips for resin users to reduce their environmental impact and promote sustainability.

By minimizing leftover resin, properly storing unused resin, and choosing sustainably sourced resin materials, resin users can help support a more responsible and sustainable resin industry.

As the demand for resin-based products continues to grow, it’s important for manufacturers and users alike to prioritize environmentally responsible practices.


Epoxy resin waste can pose a significant environmental hazard if not disposed of properly.

It is clear that minimizing leftover resin, disposing of epoxy resin safely, proper handling, and exploring eco-friendly options can significantly reduce the impact of resin waste on the environment.

Eco-friendly practices like recycling, composting, and upcycling can not only reduce waste but also create new artistic opportunities.

In addition, choosing sustainable sourcing of resin materials, and adopting eco-friendly tips for resin users can help support a more responsible and sustainable resin industry.

By working together, manufacturers and users can prioritize environmentally responsible practices that promote sustainability and support a greener future.

It is crucial that we all do our part in minimizing the negative impact of resin waste on the environment.

As we continue to innovate and expand the use of resin-based products, we must also prioritize responsible and sustainable practices that benefit our planet and future generations.

By implementing these eco-friendly tips and practices, we can help protect our planet and contribute to a more sustainable future.

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