If you have ever poured a beautiful epoxy resin piece only to find tiny bubbles trapped on the surface, you already know how frustrating that can be. The good news is that the right tool fixes this in seconds. The better news is that a butane torch for resin art does this job far more effectively than a heat gun — especially in India's warm, humid climate.
Whether you are working in a Mumbai flat in May or a Bengaluru studio during the monsoon, temperature and humidity change how resin behaves. Choosing the correct bubble-removal tool is not just about convenience — it directly affects the finish quality of your work. This guide breaks down why the torch wins, how to use it safely, and what to watch out for when the mercury climbs above 35°C.
By the end, you will know exactly how to get a glass-smooth resin surface every single time, without scorching, yellowing, or wasting a pour.
Quick Answer
Short on time? Here is the core takeaway:
- A butane torch gives a precise, intense, short burst of heat — exactly what resin bubbles need to pop.
- A heat gun blows warm air over a wide area, which can shift wet resin, introduce dust, and overheat pours in summer.
- In Indian heat (30–42°C), you need a faster tool, not a hotter one — the torch wins on speed and control.
- Keep the flame moving, hold it 15–20 cm away, and never linger on one spot for more than 1–2 seconds.
- Always wear gloves and work in a ventilated space.
Why Bubbles Form in Resin
Bubbles in resin come from a few common sources. The main one is vigorous mixing — when you stir Part A and Part B together, air gets trapped in the liquid. Pouring too quickly, using cold resin, or working in a dusty environment all make it worse.
In India, high humidity adds another layer. Moisture in the air can react with certain resins, creating micro-bubbles near the surface. If you want a deeper look at how mixing affects your pour, check out our guide on How to Choose the Right Resin Ratio for Your First Project: 1:1 vs 2:1 Explained for Indian Beginners.
The surface tension of resin is relatively high, which means bubbles do not pop on their own easily. You need a quick burst of heat to lower that surface tension and let the bubble collapse.
Butane Torch vs Heat Gun: A Real Comparison
Both tools use heat, but they work very differently on a resin surface. Here is a side-by-side look:
| Feature | Butane Torch | Heat Gun |
|---|---|---|
| Heat type | Direct flame, radiant heat | Forced hot air |
| Temperature at tip | ~1300°C (but brief exposure) | ~200–600°C continuous airflow |
| Bubble removal speed | 1–2 seconds per pass | 5–15 seconds, multiple passes |
| Risk of moving wet resin | Very low (no airflow) | High (strong airflow disturbs surface) |
| Risk of overheating in summer | Low (brief contact) | Higher (sustained heat builds up) |
| Portability | Very portable, no cord | Needs power outlet |
| Control | Precise, targeted | Broad, harder to target |
| Best for | Resin bubble removal, lacing effects | Shrink wrap, paint stripping |
The heat gun was originally designed for industrial tasks — not resin art. The airflow is its biggest problem. On a fresh pour, that blast of air can push pigments around, create craters, or blow dust onto a sticky surface. The torch has none of these drawbacks.
How a Butane Torch Actually Removes Bubbles
When you pass a torch flame briefly over wet resin, the heat lowers the surface tension at that exact spot. The bubble walls thin out and collapse, leaving a smooth surface. It happens almost instantly — which is why the torch is so satisfying to use.
The key word is briefly. The flame temperature is very high, but your exposure time is under two seconds per pass. That short contact heats the surface just enough without penetrating deep into the pour.
This is especially useful for lacing effects in alcohol ink resin art, where you want the surface to move in a controlled way. The torch gives you that control; a heat gun does not.
If you are working with small jewellery pieces or keychains, you may also want to read about UV Resin vs Epoxy Resin for Small Moulds: Which One Actually Works Better for Keychains, Pendants, and Jewelry in Indian Humidity? — the bubble challenge differs between UV and epoxy resin.
Using a Torch in Indian Summer Heat Without Scorching
This is where most beginners go wrong. Indian summers (especially March to June) mean your resin is already warmer than ideal. Ambient temperatures above 30°C speed up the curing reaction, which means your working window is shorter and the resin is more sensitive to extra heat.
Tips for Hot-Weather Torching
- Work in the early morning or evening when room temperature is lower. This gives you a longer open time before the resin starts to gel.
- Keep your resin components cool before mixing — store them in an air-conditioned room for at least an hour before use.
- Hold the torch 15–20 cm from the surface, not 5 cm. Distance matters more in hot weather.
- Move continuously — never hold the flame still over one spot. A slow, sweeping pass is all you need.
- Do one pass, wait 10 seconds, then do another if bubbles remain. Resist the urge to keep the flame on.
- Avoid torching after the 30-minute mark on most standard epoxy resins — the surface is already thickening and excess heat will scorch or yellow it.
Overheating a summer pour can also trigger exothermic runaway — where the resin heats itself from within and cracks or yellows. For a full breakdown of this risk, see our article on Deep Pour vs Thin Pour Epoxy in Indian Summers: Why Your Resin Overheats in May and What to Do About It.
Signs You Have Scorched the Surface
- Yellowing or browning in one spot
- A wrinkled or puckered texture
- White haze (especially on coloured resin)
- Burning smell that does not go away quickly
If you see any of these, stop immediately. Let the piece cure fully and sand lightly before adding a fresh flood coat. And if your resin is coming out sticky even without torching issues, our guide on Why Your Resin Is Still Sticky After 24 Hours — and How to Fix It Before You Ruin the Piece will help you troubleshoot.
Choosing the Right Torch for Resin Art in India
Not all torches are equal. For resin art, you want something small, refillable, and easy to control with one hand while you manage your pour with the other.
The Blow Torch from Shrebhavi is a popular choice for artists who work on larger surfaces like trays, coasters, and table tops. It has a steady flame and a comfortable grip for extended sessions.
For jewellery makers and anyone working on small moulds, the Mini Blow Torch is ideal. It gives you finer control over a smaller flame, which is exactly what you need when working on a pendant or keychain mould where even a second of excess heat can distort the piece.
Both torches use standard butane gas, which is widely available across India in hardware and kitchen supply shops.
What to Look for When Buying
- Adjustable flame — lets you dial down intensity in summer
- Safety lock — prevents accidental ignition during storage
- Refillable design — more economical and eco-friendly than disposable lighters
- Comfortable grip — you will be holding it for several minutes at a time
If you are just starting out and want everything in one place, the Resin Essential Set 1 and Resin Essential Set 2 bundle together key tools so you do not have to hunt for each item separately.
Safety Notes You Cannot Skip
A butane torch is a genuine flame tool. Treating it casually is how accidents happen. These safety habits are non-negotiable, especially when working indoors in Indian homes where ventilation is often limited.
- Always work in a ventilated space. Resin fumes plus butane combustion products are not a good combination in a closed room. Open windows or use a fan pointing away from your work surface.
- Keep flammable materials away. Isopropyl alcohol, paper towels, and alcohol inks should be capped and stored away from the torch area.
- Wear gloves. The Hand Gloves Pair protects your skin from both resin contact and accidental heat near your fingers.
- Never leave a lit torch unattended. Always click the safety lock back on when you set it down.
- Store butane canisters upright and away from direct sunlight — in Indian summers, a canister left on a sunny windowsill can be dangerous.
- Do not torch over silicone moulds with resin still liquid inside. The torch is for open pours on flat surfaces, not for heating inside a mould.
For creative project ideas once you have your technique sorted, take a look at Creating Unique Monsoon Decor: A Step-by-Step Guide to Using Silicone Molds with Resin — a great starting point for seasonal projects.
Frequently Asked Questions
Can I use a candle lighter instead of a butane torch for resin bubbles?
A candle lighter will pop a few surface bubbles in a small area, but it does not have the consistent flame or the reach of a proper butane torch. For anything larger than a pendant, it is too slow and too unpredictable. Invest in a proper torch — it makes a visible difference in your finish quality.
How far should I hold the torch from the resin surface?
Hold it 15–20 cm (about 6–8 inches) away from the surface. In Indian summer conditions, err on the farther side — 18–20 cm. The closer you hold it, the higher the risk of scorching. Keep the torch moving at all times and never stop in one spot.
Is it safe to use a butane torch indoors in India?
Yes, with proper precautions. Ensure good cross-ventilation, keep flammable items away, and use a torch with a safety lock. Avoid using it in a fully air-conditioned room with no fresh air exchange. A window open and a fan pointing outward is the minimum setup.
Why does my resin still have bubbles after torching?
Usually this means the bubbles are rising from deeper within the pour rather than sitting on the surface. Torch passes only affect the top 1–2 mm. If bubbles keep appearing, try warming your resin components slightly before mixing (not in summer), mixing more slowly, or doing a thin seal coat first before your main pour.
Can I use the same torch for both large trays and small jewellery pieces?
Technically yes, but it is not ideal. A full-size blow torch on a tiny pendant can easily overheat the piece. The mini blow torch is purpose-built for small work. Using the right size tool gives you much better results and reduces the chance of damage.
Does summer heat in India affect how long I have to torch the resin?
Yes, significantly. In temperatures above 32°C, most epoxy resins begin to gel faster — sometimes within 20–25 minutes instead of the usual 45–60. This means your window for torching is shorter. Work quickly after pouring, torch within the first 10–15 minutes, and do not try to re-torch once the surface starts to feel tacky.
Wrapping Up
A butane torch for resin art is one of those tools that genuinely changes what your finished pieces look like. The control, the speed, and the lack of airflow make it the clear winner over a heat gun — particularly in India's warm, humid conditions where you simply cannot afford to add unnecessary heat or disturb a fresh pour.
Start with the right torch for your project size, keep your movements light and sweeping, respect the heat, and your resin surfaces will come out smooth and professional every time. Pair that with good gloves, proper ventilation, and quality materials, and you are set up for consistent results regardless of the season.
Browse the full range of resin tools and starter kits at Shrebhavi.in — everything you need is in one place, with fast delivery across India.