Do You Need A UV Light For Resin?

If you’re new to working with resin, you might wonder if you need a cure lamp. The answer depends on the type of resin you’re using and the kind of project you have in mind. If you are using UV resin, yes you will need a cure light. Since I use resin all the time, I have some helpful tips for you. If you’re just getting into resin and wondering if you really need a UV light, the answer depends on the type of resin you’re using. UV resin and epoxy resin are very different, and knowing what you have will help you figure out what tools you need.

do-you-need-a-cure-lamp-for-resin-crafts

If you’ve watched someone make a pendant under a little lamp, you might be wondering if your projects need one too. That light is part of their UV resin setup, rather than something every resin crafter needs. Start by checking your product’s label for the resin type and curing instructions. From there, it’s much easier to figure out what belongs on your craft table.

When I first tried UV resin, I thought I could just leave it in a sunny window and call it a day but that didn’t work so well. Sun will cure UV resin but it’s not the best. I learned fast that a good UV light makes all the difference for clear, hard cures without the tacky mess. Some resins need UV light to harden, while others cure on their own without it. In this post, I’ll break down which resins need UV light and what kind of UV light works best. By the end, you’ll know exactly when and why you might need one. Let’s dive in!

Do You Need A Cure Light For Resin?

UV resin needs UV light to cure, either from a compatible lamp or direct sunlight. Two part epoxy resin does not need a UV light. It hardens through a chemical reaction when the resin and hardener are mixed correctly. Check your product’s instructions for its curing requirements.

1. UV Resin Needs A Cure Light

A UV curing lamp will harden UV resin so your piece is ready for the next step. Choose a light with the wavelength recommended on your resin’s label, since lamps and formulas can differ. Apply thin layers so the light can reach through the resin, especially when adding color or decorations. Follow the listed curing time for each layer, and rotate your piece as needed to expose all sides. Sunlight can also cure UV resin, but a proper lamp gives you more control over the process.

Let’s Resin Cure Light On Amazon

2. Epoxy Resin Does Not Need a Cure Light

You can leave the curing lamp off your supply list for two part epoxy resin. Once you mix the resin and hardener, the two start reacting and hardening on their own. Measure carefully and follow the mixing directions on your bottles, since each brand can be a little different. Then give your creation time to cure. I know it’s tempting to pick it up and admire it, but being ready to come out of the mold and being fully cured are two different things!

3. Cure UV Resin In Thin Layers

With UV resin, a little at a time is the way to go. Thin layers let the light reach through your piece so it can harden throughout. Cure each layer before adding the next, following the thickness and timing listed on your bottle. This is especially helpful when you’re adding flowers or glitter, since those little extras can block some of the light.

4. Choose A Light That Matches Your UV Resin

Before buying a curing lamp, check your resin’s label for the recommended wavelength. That’s the type of UV light your formula needs, and you’ll usually see it listed in nanometers, or nm. Match that number to the lamp’s details when shopping. Check the size too, so your molds fit comfortably underneath and you have room to move your pieces around.

5. Use Clear Molds For UV Resin

Those pretty pink silicone molds may work well for epoxy, but clear molds let UV light reach your resin from more directions. Look for ones labeled for UV resin, especially when making pendants or other small pieces. Once the resin is firm enough to remove, check your product’s directions for curing the back and edges. Giving each side time under the lamp helps light reach areas shaded by the mold. If you are just starting out, you might want to get a complete kit like this Kisrel jewelry making kit on Amazon.

6. Pros And Cons For Using UV Resin

UV resin is handy for small crafts because it’s ready to use straight from the bottle, with no measuring or mixing two parts. Thin layers can cure in minutes under a compatible lamp, so you can move along with your pendants, charms, and little details. The tradeoff is that light needs to reach the resin throughout your piece. Too much pigment or tightly packed decorations can block that light, so work in thin layers and follow your bottle’s directions. It also tends to cost more per ounce than epoxy, which is worth considering if you have lots of projects planned.

7. Types Of UV Resin Lamps

There are a few different UV light options available depending on the size and scale of your project.

Handheld UV Lights: Small and portable, these are great for quick fixes or curing small, detailed pieces. However, they might not be ideal for larger items or for curing an entire project at once.
UV Lamps: UV nail lamps are often used for resin and will give you way more even coverage. Look for lamps with at least 36 watts of power so that your resin will cure properly. Anything less than that might give you pockets of uncured resin.

8. Tips For Working With UV Resin

Set out your mold and decorations before opening your UV resin so everything is within reach. Keep your work away from direct sunlight while you arrange those little details. Add color a little at a time and leave space between flowers or glitter so the curing light can reach through. Work in thin layers, curing each one according to your bottle’s directions. Keep the bottle capped between pours, and use the gloves, eye protection, and ventilation listed in your product’s safety instructions.

9. Can You Cure UV Resin In Sunlight?

Yes, direct sunlight can cure UV resin, so a lamp isn’t your only choice. The timing depends on your resin, the thickness of your piece, and the sunlight available. Check your bottle for outdoor curing directions before giving it a try.

Thanks for reading! If you’re using UV resin, then yes you’ll need a UV light to cure it the right way. For epoxy resin, it cures all on its own over time, no light needed. I hope this helped clear things up. Feel free to share this post with someone else who’s just starting resin crafting.

Do You Need A UV Light For Resin?