Concrete Candle Vessels — Complete DIY Tutorial (Step-by-Step Guide for India)

Concrete candle vessels are the highest-margin product category in Indian candle making right now. A vessel that costs you ₹50–₹100 to cast yourself, filled with a scented candle, sells for ₹700–₹1,500 retail. The vessel itself becomes home decor when the candle is finished — enormous perceived value.

This tutorial walks you through casting your first concrete vessel, sealing it, pouring a candle inside, and finishing for retail. Written by Bloom Creations — we stock 130+ concrete vessel moulds in India and have helped thousands of makers move into this premium category.

What You Need

Materials:

  • Silicone mould for the vessel shape. We stock 130+ vessel mould designs — round, square, irregular, ribbed, twisted, geometric. Start with one simple round or square design.
  • Cement / Gypsum / Jesmonite. Three options depending on look:
    • White cement — traditional, cheap (₹20–₹50/kg), grey-white finish.
    • Gypsum powder — smooth, pure white, faster set. Bloom Creations stocks premium gypsum.
    • Jesmonite-style polymer modified cement — premium finish, lighter weight, more durable. Higher cost.
  • Water. Clean drinking water. Not tap water with high mineral content.
  • Mixing vessel. Plastic bucket or large bowl.
  • Stirrer. Wooden spatula or paint stirrer.
  • Measuring scale. Digital kitchen scale.
  • Pigment (optional). Concrete pigments for coloured vessels. See our concrete pigment range.
  • Sealer. Critical — concrete absorbs fragrance oil otherwise. Bloom Creations Gloss Polish Concrete Sealer is what we use ourselves.
  • Sandpaper. 220 grit for smoothing edges after demoulding.
  • Wick + soy wax + fragrance oil for the actual candle (covered separately at the end).

Step 1: Mix Your Concrete

Mixing ratio depends on what you’re using:

Material Water ratio Set time Pour consistency
White cement 1 part water : 3 parts cement (by weight) 3–4 hours initial, 24h full Like pancake batter
Gypsum powder 1 part water : 1.5 parts gypsum (by weight) 30–60 minutes Like cream
Jesmonite 1 part liquid : 2.5 parts powder (per kit) 30–60 minutes Like cream

Mixing tips:

  • Add powder to water (not the reverse) — prevents lumps.
  • Stir for 2–3 minutes minimum. Slow, even strokes.
  • Mix is ready when there are no dry powder pockets.
  • Add pigment if using coloured vessels — start with 1–2% by weight, test small batches first.

Step 2: Pour Into the Mould

  1. Place silicone mould on a flat, stable surface.
  2. Pour mix slowly into the mould — fill to the top edge.
  3. Tap the mould gently 10–15 times to release air bubbles. Visible bubbles will become surface holes in the finished vessel.
  4. If you can see air bubbles still rising, tap a few more times.
  5. For deep moulds, consider using a vibrating tool (mobile phone in plastic bag on side of mould works) for 30 seconds to release deep bubbles.

Step 3: Cure

Curing time varies by material:

  • White cement: 24 hours minimum before demoulding. 48 hours preferred for thicker walls.
  • Gypsum: 4–6 hours minimum.
  • Jesmonite: 90 minutes to 3 hours.

Cover the mould loosely with a plastic sheet to prevent dust settling on the wet surface. Keep at room temperature — do not put in fridge or sunlight.

Step 4: Demould

Once fully cured:

  1. Carefully peel back the silicone from the top edge.
  2. Work the silicone away from the vessel surface gently.
  3. Invert the mould over a soft cloth and gently push from the bottom.
  4. The vessel should release cleanly. If it sticks, wait another 12 hours and try again.

Step 5: Finish the Vessel

  1. Use 220-grit sandpaper to smooth any rough edges, especially the top rim.
  2. Wipe down with a damp cloth to remove dust.
  3. Allow to dry completely (4–6 hours).
  4. Critical step: apply sealer. Brush or spray our concrete sealer evenly inside the vessel. Two thin coats are better than one thick coat. Let dry 4–6 hours between coats.
  5. Optional: paint the outside or add a wax-resist finish for textured effects.

Why sealing matters: Unsealed concrete is porous. It absorbs fragrance oil from your candle, weakening the scent and staining the vessel. A properly sealed vessel keeps the candle’s fragrance intact and protects the concrete from heat damage.

Step 6: Make the Candle Inside

Once your vessel is fully sealed and dry, treat it like any container candle:

  1. Place a pre-tabbed wick (size for the vessel diameter) inside, centered.
  2. Hold the wick in place with a wick centering bar.
  3. Melt soy wax to 75–80°C.
  4. Add fragrance oil at 82–85°C (8–9% load for premium scent throw).
  5. Stir for 2 minutes.
  6. Pour into the vessel at 60–65°C (lower than glass to prevent thermal stress on the concrete).
  7. Allow to cool 4–6 hours undisturbed.
  8. Trim wick to 6mm.
  9. Cure 7–10 days before burning or selling.

See our wax-to-fragrance ratio cheat sheet for exact quantities.

Cost Analysis Per Vessel Candle

Component Cost
Gypsum / concrete (250g) ₹15–₹30
Sealer (small amount) ₹5–₹15
Soy wax (150g for vessel) ₹45–₹75
Fragrance oil (15g at 10% load) ₹45–₹75
Wick + sustainer + centering ₹5–₹10
Packaging (box + tag + ribbon) ₹30–₹70
Total cost per vessel candle ₹145–₹275

Retail at ₹700–₹1,500. Margin: 70–80%.

Vessel Designs That Are Selling in India

  • Round / cylindrical vessels — universal, easiest to make, best for first-time concrete makers.
  • Striped / ribbed vessels — modern aesthetic, photographs well on Instagram.
  • Heart / star / animal shapes — gifting, kids’ birthdays, themed weddings.
  • Tall narrow vessels (vase-shape) — sophisticated, design-conscious customers.
  • Square / cube — modern minimalist.
  • Buddha / spiritual shapes — meditation / pooja gifting.
  • Coiled / textured organic shapes — premium boutique boutique brand differentiator.

Browse all 130+ concrete vessel mould designs.

Common Mistakes

  • Skipping sealer. Unsealed vessels absorb fragrance oil. The candle smells faint, the vessel is permanently stained. Sealing is non-negotiable.
  • Pouring wax too hot. Hot wax can thermally shock concrete — micro-cracks form. Pour at 60–65°C.
  • Demoulding too early. Concrete that’s 50% cured tears or crumbles. Wait the full time.
  • Not removing bubbles from the mix. Surface bubbles become surface holes. Tap firmly.
  • Adding too much pigment. Above 3% pigment weakens concrete and prevents proper curing. Test with 1–2%.
  • Skipping the cure period for the candle. Even premium vessels won’t save a candle that hasn’t cured 7+ days.

Frequently Asked Questions

What is the difference between gypsum and cement for vessel candles?

Gypsum is whiter, smoother, sets faster (4–6 hrs vs 24 hrs for cement), and is more forgiving for beginners. Cement is cheaper and slightly stronger. Most premium concrete vessel brands use gypsum-based formulas or jesmonite.

Can I skip the sealer if I use a higher-quality wax?

No. The issue is concrete porosity, not wax quality. Even premium wax loses fragrance into unsealed concrete. Sealer is required.

How long do concrete vessel candles burn?

A 150g soy wax candle in a vessel burns approximately 25–35 hours total.

Are concrete vessels safe for candle use?

Yes — when properly sealed and used with appropriate wick sizing. The vessel does not get dangerously hot since concrete dissipates heat well.

Can I cast a concrete vessel without a silicone mould?

You can use other materials (cardboard boxes, plastic containers, balloon-based moulds) but silicone gives the cleanest finish and is reusable for years. We stock 130+ silicone vessel moulds.

Where can I buy concrete vessel supplies in India?

Bloom Creations stocks the full kit: silicone moulds (130+ designs), gypsum powder, concrete sealer, soy wax, fragrance oils, wicks, dyes, and tools. All shipped pan-India.

This tutorial is part of the Bloom Creations complete candle making guide. Browse concrete vessel moulds | Compare container types

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