The glossy finishes, artistic possibilities, and long-lasting results of working with epoxy or polyester resin are some of the reasons why resin crafting is so popular. Working with resin can be extremely rewarding. But as any resin artist or professional knows, cleaning up your tools is a critical part of the process. Brushes, mixing cups, and other equipment can be damaged by leftover resin, which can harden quickly. This raises a common concern: Can you use acetone to clean resin tools?
The short answer is that resin tools can be cleaned with acetone, but with caution. It is efficient, quick, and widely used for cleaning resin, but safety and the environment must be taken into account. In this article, we’ll break down:
- How acetone works
- Whether it’s effective for cleaning resin tools
- Safer and greener alternatives
- Step-by-step instructions for cleaning with acetone
- Safety precautions you should never skip
Let’s dive in.
What Is Acetone?
Acetone is a clear, volatile solvent commonly found in nail polish remover, paint thinners, and industrial degreasers. Chemically known as propane-2-one, it’s highly effective at breaking down sticky, gummy substances like uncured resin, oils, adhesives, and paints.
It is the go-to cleaner in many workshops, including those that work with epoxy and other resins, due to its strong solvent power and rapid evaporation rate. However, just because it is powerful does not necessarily imply that it is the safest or best option. Before we get into alternatives, let’s look at how it interacts with resin.
Can Acetone Clean Resin Tools?
Yes, acetone can clean tools used with resin — but only if the resin is still wet or uncured.
Acetone effectively dissolves most types of resin before they harden. That includes:
- Epoxy resin
- Polyester resin
- Polyurethane resin (to some extent)
It can clean:
- Brushes
- Mixing sticks
- Resin molds (non-silicone)
- Measuring cups
- Spatulas
- Work surfaces (metal, plastic, or glass)
Acetone, on the other hand, won’t do much good once the resin has fully cured. Fully cured resin is a hard plastic, and at that point, only sanding, scraping, or using heat can remove it.
How to Use Acetone to Clean Resin Tools (Step-by-Step)
Here’s a simple and safe method to clean your resin tools using acetone:
Tools You’ll Need
- Acetone (available in hardware stores)
- Glass or metal container for soaking
- Gloves (nitrile preferred)
- Safety goggles
- Respirator or mask (in a poorly ventilated area)
- Lint-free cloth or paper towels
- Dish soap and water for final rinse
Step 1: Wipe Off Excess Resin
Before using any solvent, wipe as much resin off your tools as possible using a rag or paper towel. Cleaning will take less time and require less acetone as a result.
Step 2: Soak in Acetone
Pour a small amount of acetone into a glass or metal container (never plastic — acetone can melt it). Place your tools into the container and let them soak for 5 to 10 minutes. The resin will begin to dissolve and separate as you observe it.
Step 3: Scrub Gently
To remove the remaining resin, scrub it off with a stiff brush or sponge. On surfaces that are delicate or silicone molds, avoid using anything abrasive.
Step 4: Rinse With Soap and Water
After cleaning your tools, thoroughly rinse them with warm water and dish soap to get rid of any acetone residue. This step is crucial for your tools’ longevity and safety.
Step 5: Let Them Dry
Use a clean cloth to dry the tools or let them air dry. Although acetone evaporates quickly, tools should still be kept in a ventilated area until they are completely dry.
Safety Tips When Using Acetone
Acetone is powerful but highly flammable and potentially hazardous if not handled properly. Follow these guidelines to stay safe:
Work in a Well-Ventilated Area
Acetone vapors are strong and can cause dizziness or headaches. Always work with good airflow, or use a respirator mask if needed.
Avoid Skin Contact
Wear nitrile gloves. Prolonged skin contact can cause dryness, irritation, or dermatitis.
Keep Away from Heat or Flames
Acetone is extremely flammable. Never use it near open flames, heat guns, or even plugged-in electronics.
Dispose Responsibly
Do not pour used acetone down the drain. Instead, store it in a closed metal container and dispose of it at a local hazardous waste facility.
Can You Use Acetone on Silicone Molds?
This is a tricky one. While acetone can dissolve uncured resin on molds, it’s not recommended for silicone molds.
Why?
- Acetone can break down the silicone over time, making it brittle or sticky.
- It may reduce the non-stick properties of the mold.
Use mild soap, warm water, or isopropyl alcohol instead for cleaning silicone molds.
Alternatives to Acetone for Cleaning Resin Tools
If you’re concerned about the harshness or health risks of acetone, there are safer options:
- Isopropyl Alcohol (99%)
- Works well on uncured resin
- Less toxic and flammable than acetone
- Safe on silicone molds
- Vinegar
- A milder, non-toxic option
- Works slowly but effectively for some uncured resins
- Citrus-Based Resin Cleaners
- Commercial cleaners like “Resin Obsession” or “Eco-Solve”
- Non-toxic and biodegradable
- More expensive but better for long-term health
- Baby Wipes or Paper Towels
- For light cleaning right after use
- Best used with small amounts of resin
- Freezing Method
Let leftover resin harden in disposable cups, then pop it out later. You won’t need acetone at all!
What Happens If You Use Acetone on Cured Resin?
As mentioned earlier, acetone is only effective on wet or tacky resin. Once resin has cured fully:
- It becomes a hard plastic.
- Acetone won’t dissolve it.
- You’ll need to sand, scrape, or cut it off manually.
That’s why cleaning tools immediately after use is critical if you plan to reuse them.
