How To Do Resin

Resin art sits at that rare crossroads where science meets creativity — where chemistry becomes color, and patience becomes something you can hang on a wall. If you’ve ever stared at a glossy, swirling epoxy coaster and thought “how did they do that?”, you’re about to find out.

What Is Resin Art?

Epoxy resin is a two-part liquid system — one part resin, one part hardener — that, when mixed together, triggers a chemical curing reaction and sets into a hard, glass-like solid. Artists use this property to create everything from jewelry and coasters to river tables and wall panels.

The result is a surface that’s glossy, durable, UV-resistant (in quality formulas), and undeniably eye-catching. Think of it like working with liquid glass — you have a short window to shape it, pour it, and color it before it solidifies into something permanent.

Types of Resin You Need to Know

Not all resins are created equal. Choosing the wrong type is one of the fastest ways to ruin a project before it starts.

Casting resin is thinner and designed for deep pours, while coating resin is thicker and self-levels beautifully over flat surfaces. For first-timers, a 1:1 ratio coating epoxy is the most forgiving starting point.

Tools & Materials Checklist

Before a single drop of resin hits a surface, your workspace setup determines 80% of your outcome.

Must-Have Supplies:

• Epoxy resin + hardener kit (quality brands matter — cheap resin yellows fast)
• Nitrile gloves — not latex, which can react with resin
• Respirator mask with organic vapor cartridges
• Protective goggles
• Disposable plastic cups (graduated for measuring)
• Wooden stir sticks or silicone spatulas
• Digital kitchen scale (more on why this matters shortly)
• Silicone molds or a flat, sealed wooden panel
• Butane torch or heat gun for bubble removal
• Parchment paper or plastic sheeting to protect your table
• Mica powder, alcohol inks, or resin-safe pigments for color
• Dust cover (a cardboard box works perfectly)

Optional but Useful:

• Glitter, dried flowers, foil, holographic sheets
• Resin colorant concentrates
• Toothpick or palette knife for detailed swirling

Setting Up Your Workspace

Your environment is as important as your technique. Resin is unforgiving about temperature, humidity, and cleanliness.

Temperature and Humidity

Work in a room between 72°F–78°F (22°C–25°C). Cold temperatures slow curing dramatically — below 65°F, resin can stay sticky for days. High humidity (above 80%) invites white cloudiness into your cured piece. Monsoon season, in particular, is not a great time for resin projects because moisture directly interferes with the curing process.

Ventilation

Open windows, run a fan, and never work in a sealed room. Epoxy fumes aren’t just unpleasant — prolonged exposure without protection can cause respiratory sensitization. A half-face respirator with OV/P100 cartridges is your best friend here.

Surface Leveling

Place your work surface on a spirit-leveled table. Resin is self-leveling, which is great — but only if the table it’s on is already flat. An uneven surface sends all your carefully poured colors sliding toward one corner.

Step-by-Step: How To Do Resin Art

Now comes the part that matters most. Follow these steps in sequence — skipping even one can compromise the entire piece.

Step 1 — Measure With Precision

This is where most beginners stumble. Incorrect ratios are the #1 reason resin stays sticky or never cures. The golden rule:

Always measure by weight on a digital scale, not just by volume.

Some resins (like 2:1 or 3:1 systems) are especially sensitive to ratio errors. Pour Part A (resin) into a clean cup first, zero out your scale, then add Part B (hardener) until you hit the exact ratio by gram weight.

Step 2 — Mix Using the Double-Cup Method

The double-cup method is the most reliable mixing technique for beginners:

1. Combine resin and hardener in Cup 1
2. Stir slowly and deliberately for 3 full minutes, scraping sides and bottom
3. Transfer the mixture into a fresh Cup 2 — leave the residue in Cup 1
4. Stir Cup 2 for one more minute

Why two cups? Any unmixed resin clinging to the walls of Cup 1 stays behind. That sticky residue is what causes soft spots and cloudiness in your finished piece. Slow, thorough mixing also minimizes air bubbles.

Step 3 — Add Color

Add your mica powder, alcohol ink, or resin pigment after mixing — never before. Keep colorant under 6% of the total resin volume; adding too much disrupts the chemical cure and weakens the final piece.

• Mica powders give a metallic, silky shimmer
• Alcohol inks create watercolor-like transparency and movement
• Opaque pigment pastes produce solid, bold colors

For a galaxy or ocean effect, layer multiple pigments in separate cups and pour them individually onto your surface.

Step 4 — Choose Your Pouring Technique

Different techniques produce radically different results:

For your very first project, the straight pour is the most forgiving — pour each color in pools, then slowly tilt your panel until the colors flow and merge naturally.

Step 5 — Remove Bubbles

Bubbles are inevitable. The fix is swift and satisfying — pass a butane torch 6–8 inches above the surface in smooth, sweeping motions. The heat pops surface bubbles almost instantly. Don’t linger in one spot; you risk scorching the resin or creating yellowing.

A heat gun on low works too, but offers less precision than a torch. Never use a candle flame — soot deposits will ruin the surface.

Step 6 — Cure Undisturbed

Cover your piece with a dust cover immediately after torching. A cardboard box propped up over (not touching) your artwork works perfectly. Dust particles that land on wet resin are permanent.

Standard curing timeline:

• Touch dry: 8–12 hours
• Demolding or handling: 24 hours
• Full chemical cure: 72 hours (some casting resins: 7 days)

Resist every temptation to poke or check it. Every touch leaves a print.

Popular Resin Projects for Beginners

Starting small builds confidence and conserves expensive materials.

• Coasters — flat, forgiving, and practical; perfect for the straight pour method
• Keychains and pendants — small silicone molds, low resin volume, quick results
• Bookmarks — rectangular molds, great for embedding dried flowers or foil
• Geode art panels — stunning visual payoff using ring pour + crushed glass
• Tray coating — pour coating resin over a plain wooden tray for an instant luxury finish
• River tables — advanced, but the crown jewel of epoxy woodworking

Safety: What No One Tells Beginners

Resin is generally safe when handled correctly, but uncured epoxy is a sensitizer — repeated skin contact without gloves can trigger a lifelong allergy. Once that sensitivity develops, it cannot be reversed.

Non-negotiable safety rules:

• Wear nitrile gloves every single time — even for “just a small touch-up”
• Never eat, drink, or touch your face during a session
• Wash hands thoroughly with soap and water after every session (not acetone, which drives chemicals deeper into skin)
• Dispose of mixed resin waste after it has fully cured — cured resin is chemically inert and safe
• Keep resin away from children and pets during the mixing and curing stages

The Most Common Resin Mistakes (and Fixes)

Benefits of Resin Art

Beyond the obvious visual reward, resin art offers something deeper for creators.

• Therapeutic flow state — the slow, deliberate process forces presence in the moment
• High perceived value — resin pieces sell at premium price points on Etsy and at craft markets
• Infinite versatility — the same skill set applies to jewelry, furniture, home décor, and fine art
• Customization at every level — no two pours are identical; every piece is genuinely one-of-a-kind
• Business scalability — once you master the craft, small production batches of coasters or trays generate consistent income

Key Takeaways

• Measure resin by weight, not volume — ratio accuracy is the single most important factor in whether your piece cures properly
• The double-cup mixing method eliminates unmixed residue and prevents sticky spots
• Temperature and humidity control the curing environment — work between 72–78°F in low humidity for best results
• Torch bubbles within 10–20 minutes of pouring, then cover your work immediately with a dust shield
• Safety gear is non-negotiable — nitrile gloves and an OV respirator protect you from sensitization that has no cure

Frequently Asked Questions (FAQ)

How long does epoxy resin take to fully cure?
Most coating epoxy resins are touch-dry within 8–12 hours and reach full cure in 72 hours. Casting resins for thick pours can take up to 7 days for a complete chemical cure. Always check your specific brand’s datasheet, as formulas vary.

What is the correct resin-to-hardener mixing ratio?
It depends on your resin type. 1:1 ratio epoxies (equal parts by volume or weight) are standard for coating applications. Casting resins commonly use a 2:1 or 3:1 ratio. Always confirm the ratio by weight on a digital scale rather than relying on volume markings alone.

Why is my resin still sticky after 24 hours?
A sticky or soft cure almost always means the resin and hardener were not mixed in the correct ratio, or mixing was insufficient. Cold workspace temperatures (below 65°F/18°C) can also dramatically slow or prevent curing. There is no fix for a fully sticky piece — it must be scraped off and redone.

Can you do resin art without a torch?
Yes, but results will vary. A heat gun on its lowest setting can pop surface bubbles, though it’s less precise. Alternatively, blowing through a straw across the surface breaks small bubbles. A butane kitchen torch remains the most effective and affordable tool for clean, bubble-free surfaces.

What pigments are safe to use in resin?
Resin-safe mica powders, alcohol inks, and opaque pigment pastes are the most reliable choices. Acrylic paint can be used in small amounts (under 6% of resin volume) but excess water content in acrylics can cloud the cure. Avoid water-based dyes and oil paints, which interfere with the curing reaction.

How do you remove resin from skin?
Act fast — use soap and warm water immediately, never acetone or solvents, which push chemicals deeper into the skin. If the resin has already cured on skin, it will flake off naturally within a few days. To prevent skin contact entirely, wear nitrile gloves throughout every session, including cleanup.

What is the difference between casting resin and coating resin?
Casting resin is thinner and formulated for thick pours inside molds — it generates less heat during curing (lower exotherm), which prevents cracking in deep fills. Coating resin is thicker, self-levels over flat surfaces, and cures with a high-gloss finish ideal for tabletops, trays, and art panels. Using a casting resin as a coating or vice versa typically leads to poor results.