There is something about a flower-shaped resin coaster that stops people mid-conversation. You place it on the coffee table and guests immediately pick it up, turn it over, and ask where you bought it. That is the whole point — it should not look handmade in a rushed, craft-fair way. It should look considered, like something from a boutique home decor store that charges ₹800 per piece.
The good news is that with the right resin flower coaster mould, a handful of dried botanicals, and a basic epoxy kit, you can make a full set of four coasters in a weekend. This guide walks you through every step — from prepping your flowers to demoulding without scratches — so your first attempt actually comes out looking polished.
Whether you are making these for your own home, as a Raksha Bandhan gift, or to sell online, this tutorial covers the details that most beginner guides skip: layering sequence, botanical placement, bubble control in Indian humidity, and how to finish the edges so they feel smooth to the touch.
Quick Answer: What You Need to Know First
If you are short on time, here is the summary of the whole process:
- Use a 1:1 or 2:1 epoxy resin — not UV resin — for coasters this size
- Pour in two layers: a thin base layer first, then embed botanicals, then a top layer
- Let each layer gel for 4–6 hours before adding the next
- Full cure takes 24–48 hours depending on your room temperature
- The 4.5" Flower Coaster Mould produces a coaster that fits standard mugs and glasses perfectly
- Sand with 400–800 grit wet sandpaper for a smooth edge finish
Materials You Will Need
Before you start, gather everything. Stopping mid-pour to hunt for a toothpick is how bubbles happen and flowers shift.
Resin and Mould
- Epoxy resin kit (1:1 or 2:1 ratio — check your brand's instructions)
- 4.5" Flower Coaster Mould — silicone, flexible, easy release
- Measuring cups (graduated, at least 2)
- Mixing sticks or silicone spatulas
Botanicals and Embellishments
- Pressed dried flowers — pansies, baby's breath, marigold petals, lavender sprigs
- Dried leaves — fern fronds, eucalyptus, or simple curry leaf pressed flat
- Gold foil flakes or mica powder (optional but impactful)
- Resin pigment or alcohol ink for tinting the base layer
Finishing Supplies
- Wet-dry sandpaper: 400, 600, 800, and 1000 grit
- Resin polish or car headlight polish
- Cork sheet or felt pads for the base
- Nitrile gloves and a respirator mask
- A heat gun or lighter for popping surface bubbles
Why the 4.5" Flower Mould Works So Well for Coasters
Not every flower mould is designed with coasters in mind. Some are too shallow and the resin cracks under heat from a hot mug. Some have petal details so deep that demoulding without tearing becomes a nightmare.
The 4.5" Flower Coaster Mould hits a practical sweet spot — the diameter fits a standard chai glass or coffee mug base, the depth is enough to embed botanicals in a middle layer without them floating, and the silicone flexibility means you can peel it back cleanly without stressing the cured piece.
If you are planning to expand your set or make coordinated home decor pieces, the Flower T-light Holder Mould pairs beautifully with the coaster set — same floral aesthetic, different function. A set of four coasters plus two t-light holders makes a complete gifting package that genuinely looks boutique.
Preparing and Pressing Your Dried Botanicals
This is where most beginners skip steps and regret it later. Fresh or semi-dry flowers trap moisture. That moisture turns into air bubbles in the resin, or worse — it causes the flower to brown and rot under the surface over time.
How to Press and Dry Flowers Properly
- Place flowers between two sheets of parchment paper inside a heavy book
- Leave for 2–3 weeks minimum in a dry spot — not near a window with humidity
- Alternatively, use a microwave flower press for 30–60 second bursts at low power
- Flowers should feel papery and completely flat before use
- Store in a zip-lock bag with a silica gel packet until you are ready to pour
In Indian summers and monsoon months, humidity is the enemy. Even dried flowers can re-absorb moisture from the air. If you are making these during the rainy season, check out Creating Unique Monsoon Decor: A Step-by-Step Guide to Using Silicone Molds with Resin for specific tips on working with resin when the air is heavy.
Best Botanicals for Resin Coasters
Thin, flat flowers work best. Thick or 3D flowers create uneven surfaces and air pockets.
- Great choices: pansies, violas, small daisies, baby's breath, individual marigold petals, fern fronds, pressed leaves
- Avoid: whole rose heads (too thick), succulents, any flower with a hollow stem
- Indian options: genda (marigold) petals pressed individually, jasmine buds pressed flat, dried tulsi leaves
Resin Basics Before You Start Pouring
If you have never worked with epoxy resin before, spend five minutes with How to Choose the Right Resin Ratio for Your First Project: 1:1 vs 2:1 Explained for Indian Beginners. Getting the ratio wrong is the single most common reason a first batch does not cure properly.
For coasters, you want a crystal-clear, high-gloss epoxy with good heat resistance. Coasters will have warm mugs placed on them — a resin that softens at 45°C will leave ring marks. Look for an epoxy rated to at least 60°C heat deflection temperature.
Safety First — Do Not Skip This
- Always wear nitrile gloves — resin is a skin sensitiser with repeated exposure
- Work in a ventilated room or outdoors; epoxy fumes are not pleasant in an enclosed space
- Wear a respirator mask rated for organic vapours, not just a dust mask
- Keep children and pets away from your workspace during pouring and curing
- Uncured resin is hazardous — cured resin is inert and safe
If you are working in peak summer, read Deep Pour vs Thin Pour Epoxy in Indian Summers: Why Your Resin Overheats in May and What to Do About It before you start. Thin pours in hot weather can generate heat and yellow faster than expected.
Step-by-Step: Making the Flower Coaster Set
This method uses two pours — a base layer and a top layer — which gives you a clean botanical embed without floating or sinking. For a set of four coasters using the 4.5" flower mould, you will need approximately 80–100 ml of mixed resin total.
Step 1 — Set Up Your Workspace
Level your table with a spirit level. Even a slight tilt causes uneven pours. Place your silicone moulds on a flat tray so you can move them without disturbing the resin. Lay out all your tools before you mix anything — once resin is mixed, you are working against the clock.
Step 2 — Mix and Tint Your Base Layer
Mix a small batch — about 30–40 ml total — at the ratio specified on your resin kit. Mix slowly for 3–4 minutes, scraping the sides and bottom of the cup. Rushing here causes unmixed resin streaks that stay sticky forever.
Add your colour at this stage. A few drops of alcohol ink or a pinch of mica powder gives the base a beautiful tinted look that makes the botanicals pop. Pearl white, dusty rose, sage green, and champagne gold are colours that consistently sell well for flower coaster sets.
Step 3 — Pour the Base Layer
Pour roughly 5–7 mm of tinted resin into each mould cavity. Tilt the mould gently to spread it into the petal tips. Use a toothpick to guide resin into any corners that did not fill.
Pass a heat gun or lighter quickly over the surface — 2–3 seconds, no closer than 10 cm — to pop any surface bubbles. Do not hold the heat in one spot or you will scorch the resin.
Let this layer sit for 4–6 hours until it is at the gel stage — tacky to a light touch but not liquid. This is your "working window" for botanical placement.
Step 4 — Place Your Botanicals
This is the most satisfying part. Using tweezers, place your pressed flowers face-down onto the gelled base layer. Remember that in a coaster mould, the bottom of the mould becomes the top of the finished piece — so place your flowers with the display side facing down into the mould.
Arrange with intention. A single large pansy centred in the flower shape looks elegant. A scatter of baby's breath with two or three marigold petals looks abundant. Avoid covering the entire surface — let some of the tinted base show through for depth.
Press each botanical gently so it makes full contact with the gelled resin. Any air gap under a petal will show as a cloudy patch in the finished coaster.
Step 5 — Pour the Top Layer
Mix your second batch — 40–50 ml — and keep it clear or very lightly tinted. Pour slowly over the botanicals to just below the rim of the mould. The clear top layer acts like a glass window over your flowers.
Pop bubbles again with the heat gun. Cover the moulds loosely with a cardboard box or plastic tray to keep dust off while curing. Do not use cling wrap — it can stick to the wet resin surface.
Step 6 — Full Cure and Demould
Leave undisturbed for 24–48 hours. In cooler months or air-conditioned rooms, lean toward 48 hours. In hot Indian summers, 24 hours is usually enough — but test by pressing a fingernail into the edge. If it leaves no mark, it is ready.
If your resin is still sticky after 24 hours, do not panic — read Why Your Resin Is Still Sticky After 24 Hours — and How to Fix It Before You Ruin the Piece before you do anything else.
Colour Combinations That Sell
If you are making these flower shaped resin coaster sets to sell online or gift, colour choice matters as much as technique. Here are combinations that photograph well and appeal to Indian buyers:
- Blush and Gold: Pale pink base, gold foil flakes, white dried flowers — works for weddings and Diwali gifting
- Forest Green and Ivory: Sage green tinted base, pressed fern fronds and white baby's breath — earthy, modern
- Terracotta and Marigold: Warm orange base, pressed marigold petals — deeply Indian, great for Raksha Bandhan gift sets
- Midnight Blue and Silver: Deep navy base, silver mica, tiny white flowers — dramatic, great for festive season
- Clear Crystal: No tint, just botanicals in clear resin — timeless, shows off the flowers best
Demoulding, Sanding, and Finishing
Silicone moulds release easily — peel the sides back gently and push from the bottom. Do not yank. If a coaster resists, it may need another hour of cure time.
Sanding the Edges
The edges and back of a demoulded coaster are usually matte and slightly rough. Wet-sand them through the grits: 400 → 600 → 800 → 1000. Keep the sandpaper wet throughout. This takes about 5 minutes per coaster and makes a significant difference to how professional the final piece feels.
Polishing
After sanding, apply a small amount of resin polish or car headlight restorer polish with a soft cloth. Buff in circular motions. The coaster will come up glossy and smooth — this is what separates a handmade coaster from a boutique one.
Adding Cork Backing
Cut cork sheet or felt into flower shapes to match the mould outline and glue to the back with E6000 or strong craft glue. This protects your table surface and stops the coaster from sliding — a detail buyers notice and appreciate.
Packaging for Gifting or Selling Online
A set of four dried flower resin coasters stacked in a kraft box with tissue paper and a handwritten tag is a complete gift. For Raksha Bandhan, add a personalised message card. For online selling, photograph them on a marble surface with a small plant or dried flower arrangement in the background — that is the aesthetic that drives clicks on platforms like Etsy India and Instagram shops.
If you want to build out a full home decor product line, consider pairing your coaster sets with pieces from the Lotus Candle Holder Mould for candle holders, or the 5.5" Bubble Edge Coaster Mould for a larger, more contemporary coaster style in the same botanical theme. A mixed set of different shapes at different price points gives buyers options and increases average order value.
For larger gifting sets — think corporate Diwali hampers — the Tray Mould lets you make a matching botanical tray to complete the set.
Mould Comparison Table
| Mould | Size | Best Use | Resin Needed (per piece) | Pairs With |
|---|---|---|---|---|
| 4.5" Flower Coaster Mould | 4.5 inches / ~11.4 cm | Coasters, botanical embed pieces | 20–25 ml | Flower T-light Holder Mould |
| 5.5" Bubble Edge Coaster Mould | 5.5 inches / ~14 cm | Larger coasters, statement pieces | 30–35 ml | 9x12 Tray Mould |
| Flower T-light Holder Mould | Varies by cavity | T-light candle holders, gifting sets | 15–20 ml | 4.5" Flower Coaster Mould |
| Lotus Candle Holder Mould | Lotus shape | Candle holders, decorative bowls | 40–60 ml | Any coaster mould |
| 9x12 Tray Mould | 9" x 12" | Serving trays, decorative trays, hamper sets | 300–400 ml | Coaster sets |
Frequently Asked Questions
Can I use UV resin instead of epoxy for the flower coaster mould?
UV resin is not ideal for coasters this size. It works well for small, thin pieces like jewelry and keychains, but curing a full 4.5" coaster in UV resin is slow, expensive, and often uneven because UV light struggles to penetrate thick pours. Epoxy gives a more consistent cure, better heat resistance, and is far more cost-effective for a set of four. For a full comparison, see UV Resin vs Epoxy Resin for Small Moulds: Which One Actually Works Better for Keychains, Pendants, and Jewelry in Indian Humidity?
Why are my dried flowers turning brown inside the resin after a few weeks?
This almost always means the flowers were not fully dry before embedding. Any residual moisture reacts with the resin over time, causing discolouration. Make sure flowers are pressed for a minimum of two weeks, stored with silica gel, and handled with dry gloves before placement. Some flowers — particularly those with thick centres like roses — are prone to this regardless, so stick to thin, flat botanicals for long-lasting results.
How many coasters can I make from one standard resin kit?
A standard 300 ml epoxy kit (150 ml resin + 150 ml hardener at 1:1 ratio) will give you approximately 6–7 coasters using the 4.5" flower mould, assuming two pours per coaster at 20–25 ml each. Always mix in small batches to avoid wastage and overheating — large mixed volumes generate more heat and cure faster than expected, especially in summer.
Can I make a resin flower coaster set for gifting without prior resin experience?
Yes — this is genuinely a beginner-friendly project if you follow the two-layer method described above. The main things to get right are the mix ratio, working in a ventilated space, and being patient between layers. Do not rush the gel stage. Your first set may have a small bubble or two, but the botanical embed tends to draw the eye away from minor imperfections. Most people who follow this method are happy with their first attempt.
What is the best way to price a handmade resin flower coaster set to sell online in India?
Factor in your material cost (resin, mould amortised over 50+ uses, botanicals, packaging), time at a fair hourly rate, and platform fees. A set of four boutique-finish coasters with dried flower embeds typically sells for ₹600–₹1,200 on Instagram and Etsy India, depending on the colour scheme and packaging quality. If you add a matching t-light holder or tray, you can price the bundle at ₹1,500–₹2,500. Clear, well-lit photography on a clean background makes the biggest difference to conversion rates.
How do I prevent bubbles in the resin when embedding dried botanicals?
Bubbles come from two sources: mixing too fast, and air trapped under botanical surfaces. Mix your resin slowly and deliberately for the full 3–4 minutes. When placing botanicals, press them firmly onto the gelled base layer so no air sits underneath. After your top pour, use a heat gun in short passes — never hovering — to pop surface bubbles within the first 10–15 minutes of pouring, while the resin is still fluid enough for bubbles to escape.
Wrapping Up
A well-made resin flower coaster set is one of those projects where the effort-to-impact ratio is genuinely satisfying. The process takes a weekend, the materials are affordable, and the result is something that looks like it belongs in a ₹3,000 home decor gift box.
The key is in the details — fully dried botanicals, patient layering, proper sanding, and a cork backing. Skip any of those and the coaster reads as craft-fair. Do all of them and it reads as boutique.
Start with one set of four using the 4.5" Flower Coaster Mould from Shrebhavi, experiment with two or three colour palettes, and see which one photographs best. Once you have a winning combination, making multiples for gifting or selling becomes straightforward. The mould holds up for many pours, and the silicone stays flexible and clean with proper care.
If you run into any curing issues along the way, the troubleshooting guides on the Shrebhavi blog have you covered. Happy pouring.