How to Make Resin Jewelry: A Beginner's Guide to Pendants, Earrings & Charms

How to Make Resin Jewelry: A Beginner's Guide to Pendants, Earrings & Charms

By Nikolai Botsman | bmmold.com

Making jewelry with resin is one of the most satisfying entry points into the craft. You pour liquid into a silicone mold, wait a day, pop it out, and it looks polished, professional, and completely yours. No kiln, no soldering, no years of training. Just the right materials, the right mold, and a little patience.

But "just pour and wait" skips over a lot of detail that actually matters. The difference between jewelry that looks handmade (in a good way) and pieces that look cloudy, sticky, or cheap comes down to a handful of decisions you make before the first drop of resin hits the mold.

This guide walks through the full process — from choosing the right resin and molds for jewelry to finishing hardware and getting pieces ready to wear or sell.

Why Silicone Molds Are the Standard for Resin Jewelry

Before getting into the resin itself, it's worth understanding why silicone molds dominate jewelry work.

Resin doesn't bond to silicone. That's the key property. Pour into a silicone mold and the cured piece releases cleanly without any mold release spray, without damaging the mold, and without leaving residue. The mold can be used hundreds of times. You get the same shape, crisp and sharp, every time.

The flexibility of silicone also means you can peel the mold back over details and undercuts that a rigid mold couldn't release. For small pendant shapes, teardrop earrings, geometric charms, and floral designs, that flexibility is what makes intricate work possible at home.

Rigid molds — polycarbonate, hard plastic — exist, but they're mostly used in industrial casting where pressure is applied. For home jewelry work, silicone is the standard.

Handmade silicone molds (like the ones made at bmmold.com) take this further: they're poured directly from original hand-sculpted originals, so the textures and forms aren't produced by a computer and look genuinely artisan. That translates to the finished piece.

Choosing the Right Resin for Jewelry

For jewelry, epoxy resin is the correct starting point. Specifically, you want UV-stabilized casting epoxy formulated for jewelry or crafts — not construction epoxy, not flooring epoxy.

Here's what to look for:

UV stabilization. Without it, epoxy yellows visibly within 2–3 months of sunlight exposure. UV-stabilized formulas slow the process significantly (though no epoxy is permanently UV-proof). For anything being worn or displayed, this matters. Brands like ArtResin, Alumilite Clear Cast, and EasyCast are UV-stabilized and widely available in Canada and the US.

Low viscosity (thin formula). Jewelry molds are small and often detailed. Thinner epoxy flows into corners and fine details more completely than thick formulas. Most jewelry-specific epoxies are designed with this in mind.

1:1 mix ratio by volume. This is the most common ratio for craft/jewelry epoxies and is easiest to measure accurately at home. Some formulas use 2:1 — check your specific product before mixing.

Working time. For jewelry, a 20–30 minute working window is plenty. You don't need the 1–2 hour windows that large art pours require. A moderate working time actually gives you better results on small pieces because the resin doesn't have time to start gelling before you've finished adding inclusions.

What about UV resin for jewelry? UV resin is worth knowing. It cures in 1–5 minutes under a UV lamp, requires no mixing, and gives you complete control over when it cures. For very small pieces — stud earrings, fine detail work, repairs — it's excellent. The limitation is depth: UV light can't penetrate reliably beyond about 3–4mm, so thicker pendant molds or domed pieces need epoxy. Many jewelers use both depending on the piece.

Tools You'll Need

The list is short:

  • Graduated mixing cups (silicone or plastic) — the markings let you measure equal volumes of resin and hardener
  • Mixing sticks (wood, silicone, or plastic — clean ones every time)
  • Nitrile gloves — epoxy is a skin sensitizer; repeated skin contact can develop into an allergy
  • Safety glasses
  • Toothpicks or fine wire — for moving inclusions and popping surface bubbles
  • A heat tool — a small butane torch or embossing heat gun for removing bubbles after pouring
  • A level surface to cure on — small jewelry molds amplify any tilt; a level table or a surface you've checked with a bubble level
  • UV lamp (if using UV resin) — 36W minimum for reliable curing; nail lamps work

That's it for the basics. You don't need a pressure pot for most home jewelry work, though it eliminates micro-bubbles if you get serious about production volume.

The Mixing and Pouring Process

Step 1: Measure

Pour resin into a measuring cup up to your desired amount, note the volume, then add an equal volume of hardener. For small jewelry molds, you'll often be working with 5–15ml total. That's less than a tablespoon. Measuring accuracy matters more at small volumes because the margin for error is proportionally larger.

Never estimate. Never eyeball. Use the graduated markings.

Step 2: Mix

Combine resin and hardener and mix for a full 3 minutes. Scrape the sides and bottom of the cup as you mix — unmixed resin along the cup walls is the most common source of sticky patches in finished pieces. Transfer to a second clean cup and mix for another 30–60 seconds. This two-cup method ensures complete mixing.

The mixture will look slightly cloudy from air bubbles during mixing. That's normal and will clear as it settles.

Step 3: Let it settle (optional but good practice)

After mixing, let the cup sit for 2–3 minutes before pouring. This gives surface bubbles a chance to rise and pop, reducing the number you have to deal with in the mold.

Step 4: Pour

Pour slowly and close to the mold surface. Pouring from height increases bubble incorporation. Fill each cavity to just slightly above the rim — surface tension will hold it, and a slight dome looks better than an underfill.

For small molds, a toothpick or the tip of a mixing stick is more useful than pouring from the cup. You can place specific amounts precisely.

Step 5: Remove bubbles

After pouring, pass a lit butane torch or heat gun quickly over the surface, 2–4 inches above the resin. The heat pops bubbles by reducing surface tension. Don't linger — prolonged heat yellows resin and can cause it to cure unevenly. Two quick passes are better than one slow one.

Alternatively, exhale gently across the surface. CO₂ from breath also pops resin bubbles effectively, and it works well for small jewelry molds where a torch is overkill.

Step 6: Cover and cure

Cover the mold with a cardboard box or container (not airtight, just dust-free) and leave on a level surface to cure. Most jewelry epoxies reach a demolding state in 18–24 hours, with full cure taking 48–72 hours.

Cure at room temperature — ideally 70–80°F / 21–27°C. Below 65°F / 18°C, cure slows dramatically and the piece may remain tacky.

Adding Color and Inclusions

This is where resin jewelry gets interesting.

Mica powder is the standard for metallic and shimmer effects. Add a small amount — start with ¼ teaspoon per ounce of mixed resin — and stir thoroughly. Mica gives you golds, coppers, bronzes, purples, and every metallic shade in between. It stays in suspension well in small pours.

Alcohol inks create translucent washes of color, marbling effects, and abstract patterns. Add 2–3 drops per ounce and swirl with a toothpick after pouring. Don't overmix or the pattern will muddy. Note: alcohol ink can inhibit cure in some epoxy formulas if overused — test with your specific brand first.

Resin-specific dyes (liquid or powder) give fully saturated, transparent colors. These are purpose-made to not interfere with curing and tend to be more reliable than improvised colorants.

Inclusions — dried flowers, glitter, flakes, small shells, foil fragments — go in after the initial pour. Pour a thin base layer, let it gel for 30–60 minutes until it's tacky but not runny, place your inclusions, then top-coat with a second pour. This two-layer method keeps inclusions from sinking to the bottom (which will be the visible front of your piece once demolded).

For transparent window-style pieces showing dried botanicals, the two-layer approach is essential to get the placement right.

Demolding

Wait the full recommended cure time. Don't rush this — a piece that looks cured on top may still be soft underneath in the deepest part of the mold.

To demold, flex the silicone mold gently to break the contact seal, then press from the back to push the piece out. Never pry with a tool from the front or edges — you'll scratch the piece.

If a piece resists releasing, put the mold in the freezer for 5–10 minutes. The resin contracts slightly with cold and usually releases without any other intervention.

Finishing and Hardware

Fresh-from-the-mold pieces are usually ready to wear, but a few finishing steps are worth knowing:

Sanding the back. The back of a mold-cast piece is often not perfectly flat — there may be a meniscus where the resin slightly domed above the rim. Wet sand with 400-grit then 800-grit wet/dry sandpaper on a flat surface to flatten it. Follow with 1500-grit for a smooth finish. If you want the back to shine, wet sand up to 2000-grit and polish with a resin polishing compound.

Adding jump rings and bail hardware. For pendants, you'll need a bail (the loop that the chain passes through). Options: UV resin a bail onto the back and cure, or use a pad bail glued with E6000 adhesive. For earrings, drill a small hole with a 1mm drill bit and attach an ear wire or jump ring.

A hand drill with a small resin-rated bit works well for this. Drill slowly, use a backing material, and clean up any dust.

Top coating. If you want an ultra-glossy domed finish on the top face of a pendant, pour a thin flood coat of fresh resin over the top surface, let it self-level, and cure again. This is called doming. It gives a lens-like convex glass finish that elevates the piece significantly.

Common Mistakes and How to Avoid Them

Tacky or soft finish after full cure time. Usually a measuring error — resin and hardener weren't at the right ratio, or mixing was incomplete. There's no fix after pouring; demold, sand, and start over. Being meticulous about measurement from the start eliminates this.

Cloudiness or white haze. Most often caused by one of three things: moisture (humidity above 65–70% during curing), amine blush (a surface reaction when certain hardeners cure in humid conditions), or mixing too vigorously (incorporating too much air). Work at lower humidity and mix thoroughly but not violently.

Bubbles in finished pieces. The torch technique and slow pouring take care of most bubbles. For micro-bubbles that a torch can't reach in deep molds, pour in thinner layers, or let the mixed resin sit 5+ minutes before pouring.

Inclusions floating up or sinking. Control this with the two-layer pour technique — a gelled base coat holds inclusions at your chosen depth.

Selling Your Pieces

If you're making jewelry to sell on Etsy or at markets, a few practical notes:

Cure time matters for structural integrity. Pieces described as "fully cured" should have at least 72 hours post-pour time before being packaged or worn. Partially cured pieces can scratch, indent under pressure, or release residual chemical smell.

UV-stabilized epoxy doesn't mean UV-proof for life. For listings, "UV-stabilized resin" is an honest description. Advising customers to keep pieces away from direct sunlight and store flat is good practice.

Resin jewelry is generally considered safe to sell without special permits in Canada and the US when the product is fully cured — cured epoxy is inert and non-toxic. The safety requirements apply to you during making, not to the finished piece.

What's Next

Once you're comfortable with a basic pour in a simple mold, the next things to explore are layering (building pieces with depth and dimension), working with botanicals (the two-pour method gets much more interesting), and UV resin for fine detail work and repairs.

The molds you work with shape what's possible more than any other variable. A mold with interesting texture or unusual form gives every piece a head start.

If you're just getting started and want to try a few shapes, simple geometric and botanical silicone molds are the right place to begin. They're forgiving, they produce pieces that photograph well, and the shapes are versatile enough to take almost any color direction.

Nikolai Botsman makes handmade silicone molds for epoxy resin at bmmold.com, shipping across North America.

Image Notes (for publishing)

Hero image: Midjourney prompt: flat lay of handmade resin jewelry — small pendant molds, cured teardrop and geometric epoxy pendants in gold and teal, silicone molds, mixing cups, dried flowers, on warm linen surface, artisan craft aesthetic, soft natural light, film grain --ar 16:9 Unsplash search: resin jewelry handmade pendants

Image 2 (near inclusions section): Midjourney prompt: close-up of dried pressed flowers being placed into a silicone resin mold with a toothpick, natural light, warm tones, craft workshop setting, no face visible Pexels search: resin mold dried flowers jewelry

Image 3 (near finishing section): Midjourney prompt: finished resin pendant earrings laid out on white surface, various shapes — teardrop, geometric, floral — with jump rings attached, macro close-up, studio light Pexels search: resin earrings pendant handmade display

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