How to Make Candles in Silicone Molds

There's a particular thrill to peeling a silicone mold off your first pillar candle and finding a crisp, sculptural shape looking back at you. Molded candles are one of the most giftable, most photogenic things you can make at home — and a flexible silicone mold does the hard part for you. This guide walks through every step: which wax to use, how much fragrance to add, the right pour temperature, wicking, demolding, and how to fix the sinkholes and frosting that trip up beginners.

What you need to make a candle in a silicone mold

You need five things: pillar wax, a wick, fragrance oil, a silicone mold, and a thermometer. That last one matters more than beginners expect — pouring at the wrong temperature causes most surface flaws. Here's the full starter kit.

• Pillar (mold) wax — firmer than container wax, so the candle holds its shape once demolded.
• A wick sized to your candle's diameter, plus a wick pin or holder.
• Fragrance oil made for candles (not essential oil alone, which burns off).
• A silicone candle mold — flexible, so even 3D shapes release clean.
• A thermometer, double boiler or pouring pitcher, and dye (optional).

Browse sculptural shapes built for pouring in our candle molds collection — figural and geometric designs that would be impossible to release from a rigid mold.

Which wax should you use for molded candles?

Use a firm pillar or mold wax, not soft container wax — a freestanding candle needs to hold its shape after it leaves the mold. Container waxes stay too soft and slump. Within pillar waxes, the choice comes down to look, scent throw, and how natural you want it.

If you're just starting, a pillar soy blend or a soy-paraffin blend is the most forgiving. New to candle-making? Our complete guide to making candles at home covers the basics first, and our guide on candle wax types compares every wax in depth. For how wax behaves alongside resin and plaster in the same mold, our guide on what you can cast in silicone molds breaks it down.

How much wax do you need for your mold?

To find how much wax you need, fill the empty mold with water, weigh it, and multiply by about 0.9 for soy wax. That gives you the approximate weight of wax to melt, since wax is a little lighter than water. Always melt about 10% extra to cover a top-up pour later.

1. Fill the mold with water and pour it onto a kitchen scale to get the weight in grams.
2. Multiply by ~0.9 (soy) to estimate the wax weight needed.
3. Add ~10% extra wax for the second pour that fills the sinkhole around the wick.

How do you make a pillar candle in a silicone mold, step by step?

Making a molded candle is a simple sequence: wick the mold, melt and scent the wax, pour at the right temperature, cool slowly, then demold. Follow these steps in order and you'll get a clean pillar on your first try.

1. Wick the mold. Pierce the center hole with a needle, thread the wick through, center it top and bottom, and secure it with a wick pin or holder so it stays straight.
2. Melt the wax in a double boiler to about 76–85°C (170–185°F), until fully liquid and clear.
3. Add dye, then fragrance. Stir in color first, then add fragrance oil at 6–10% of the wax weight (roughly 40 drops per 100 g), stirring gently for two minutes to bind it.
4. Cool to pour temperature. Let the wax drop to about 54–65°C — cooler for soy, warmer for paraffin — to reduce frosting and surface flaws.
5. Pour slowly down the inside of the mold in a steady stream to limit bubbles, filling to just below the top.
6. Cool at room temperature undisturbed. Don't use the fridge, which causes cracks and frosting.
7. Top up the sinkhole. Once a dip forms around the wick as it sets, poke a few relief holes and pour your reserved wax to level it.
8. Demold and trim. After it's fully firm and cool, flex the mold and peel it away, then trim the wick to 5–6 mm.

Do you need mold release for candles in silicone?

No — wax releases from silicone on its own as it cools and contracts, so you don't need a release agent. This is one of silicone's biggest advantages for candle-making: the flexible mold peels away from even intricate 3D shapes without sticking or breaking the detail. Rigid metal or plastic candle molds often need release spray and careful tapping; silicone just bends and lets go.

If a candle resists at all, it usually needs a few more minutes to cool and firm up. Detailed figural shapes especially benefit from the clean release, like the sculptural designs in our 3D candle molds.

How long does a candle take to set and cure?

A molded candle firms up enough to demold in a few hours, but needs longer to cure for the best scent and burn. Rushing the cure gives you a weak-smelling candle, so patience pays off here.

• Set (demold): ~2–4 hours at room temperature until fully firm and cool.
• Rest before first burn: at least 24–48 hours.
• Full cure (best scent throw): 1–2 weeks for soy and blends.

Once cured, a candle pairs beautifully with a matching base — browse designs in our candle holder molds to make a styled gift set.

Why is my candle sinking, frosting, or wet-spotting?

Most candle flaws are cosmetic and fixable once you know the cause. Match what you're seeing to the table below, and our full guide on candle making problems covers every fix.

My first soy pillar came out veiled in white frosting, and I nearly binned it — then learned frosting is just soy being soy, harmless and even charming once you expect it. Slower cooling tamed it on the next pour.

How do you do the first burn?

Let the first burn form a full melt pool all the way to the edges before you blow it out. Wax has a "memory," and if the first burn is too short, the candle tunnels down the middle and wastes the outer wax for its whole life. Trim the wick to 5–6 mm each time before lighting.

1. Trim the wick to about 5–6 mm.
2. Burn until the melt pool reaches the edges — roughly one hour per 2.5 cm (1 inch) of diameter.
3. Cap each session at 3–4 hours to avoid overheating and mushrooming.

Is candle-making safe?

Candle-making is low-risk with a few sensible precautions around hot wax and open flame. Melt wax gently in a double boiler rather than direct heat, keep a thermometer handy so you don't overheat it, and never leave melting wax unattended. Work in a ventilated space when adding fragrance, and keep water away from hot wax. Once your candle is made, follow normal candle safety: burn on a heat-safe surface, away from drafts and anything flammable, and never leave a lit candle alone.

Frequently Asked Questions

What kind of wax is best for silicone candle molds?

Use a firm pillar or mold wax, not soft container wax, so the candle holds its shape after demolding. Pillar soy, paraffin, beeswax, and soy-paraffin blends all work. For beginners, a soy blend or soy-paraffin blend is the most forgiving, releasing cleanly and holding detail from the mold.

Do you need mold release for candles in silicone molds?

No. Wax releases from silicone on its own as it cools and contracts, so no release agent is needed. This is a key advantage of silicone over rigid molds: the flexible mold peels away from even intricate 3D shapes cleanly. If a candle resists, let it cool a few more minutes until fully firm, then flex and peel.

How much fragrance oil do you add to candle wax?

Add fragrance oil at about 6 to 10 percent of the wax weight, which is roughly 40 drops per 100 grams. Add it once the wax has cooled to around 60 to 65°C, stirring gently for two minutes so it binds. Too little gives a weak scent; too much can cause the oil to seep out.

Why does my candle have a hole around the wick?

That sinkhole forms because wax shrinks as it cools, pulling away from the center. It's normal and easy to fix: once the candle has set but is still warm, poke a few relief holes around the wick and pour your reserved melted wax to level the top. Always melt about 10% extra wax for this second pour.

How long should a candle cure before burning?

Let a molded candle rest at least 24 to 48 hours before the first burn, and ideally cure soy or blended waxes for one to two weeks for the best scent throw. Curing lets the fragrance bind fully into the wax. Burning too soon gives a weaker scent than the candle is capable of.

Ready to pour your first pillar? Browse sculptural, easy-release designs in our candle mold collection and make something worth gifting.