Urushi vs Lacquer vs Resin: What's the Difference?

Urushi vs lacquer is a confusing comparison, because in English they can be the same word. Walk into a hardware store and ask for lacquer, and you'll be handed a can of nitrocellulose or acrylic spray. Walk into a Japanese craft shop and ask for lacquerware, and you'll be shown urushi, a tree sap that has been used in East Asia for thousands of years. Add resins, cashew coatings and the old European word "japan" to the mix, and it's no surprise people are unsure what they're buying. This guide sorts it out with a clear table and plain explanations.

The confusion: one English word, several materials

The word "lacquer" doesn't come from Asia's lacquer tree at all. It traces back through Portuguese and French to lac, the resin secreted by the lac insect in South and Southeast Asia. That resin is the raw material of shellac. When Europeans met glossy East Asian lacquerware in the 16th and 17th centuries, they used the words they had, and "lacquer" came to cover both. In the same era, lacquerware was often simply called "japan," and European imitations made with varnishes became known as japanning.

Then the 20th century added fast-drying industrial finishes, such as nitrocellulose for cars, furniture and guitars, and those were sold as lacquer too. Today the one English word covers at least four unrelated materials. Only one of them is urushi.

Urushi vs lacquer vs resin: comparison table

Finish	Source	How it hardens	Feel	How it ages	Typical use
Urushi (Asian lacquer)	Sap of the lacquer tree (Toxicodendron vernicifluum)	Cures: an enzyme (laccase) links urushiol molecules into a film in humid air; or heat-cured	Soft, warm, slightly silky	Keeps changing; translucent urushi becomes more transparent and glossier with use	Tableware, chopsticks, boxes, altars, art
Nitrocellulose lacquer	Cellulose treated with nitric acid, dissolved in solvent	Dries as solvent evaporates	Hard, smooth	Can yellow and check (fine cracks) over time	Furniture, guitars, older car finishes
Acrylic lacquer	Synthetic acrylic polymer in solvent	Dries as solvent evaporates	Hard, smooth	More resistant to yellowing than nitrocellulose	Furniture, cars, crafts
Shellac	Resin secreted by the lac insect, dissolved in alcohol	Dries as alcohol evaporates	Warm, thin	Softened by alcohol and heat; easily repaired	Antique furniture, French polish
Polyurethane	Synthetic polymer	Chemical reaction (two-part, moisture-cure) or oil-modified drying	Plastic-like, uniform	Very stable; can amber slightly	Floors, tables, budget "lacquerware"
Epoxy	Synthetic resin plus hardener	Chemical reaction between two parts	Hard, glassy, thick	Can yellow in sunlight	Bar tops, river tables, coatings, repairs
Cashew coating	Oil from cashew nut shells, processed into a coating	Oxidation and chemical curing	Close to urushi in look	Stable; ages differently from urushi	Affordable lacquer-look ware

Urushi (Asian lacquer): tree sap that cures

Urushi is the sap of the lacquer tree, collected by making shallow cuts in the bark. (For a fuller introduction, see what is urushi?) Its main component is urushiol. It also contains an enzyme called laccase. In warm, humid conditions, the enzyme draws oxygen into the sap and links the urushiol molecules into a hard, cross-linked film. That's why lacquerers cure their work in humid cabinets, not in dry air. Urushi doesn't dry. It cures.

There's a second route: heat. In yakitsuke, natural urushi is cured at 120–170°C, usually on metal. This method's roots go back roughly 500 years, when it was used to protect armor from rust. It's how we finish our stainless steel cutlery, and you can read more in yakitsuke urushi on stainless steel.

Once cured, urushi is hard and has a soft, gentle feel in the hand and at the lips. It's also alive in the sense that it keeps changing for years. Translucent urushi gradually becomes more transparent, which is why tame-nuri pieces slowly reveal a red base. The science is in why urushi becomes more transparent with age.

One caution applies to raw material, not finished goods. Uncured urushi sap can cause a skin rash, much like poison ivy, which belongs to the same plant family. Cured urushi has long been used on everyday Japanese tableware. We go into this in more detail in is urushi lacquer food safe?

Western "lacquer": nitrocellulose, acrylic, shellac

These are what most English speakers mean by lacquer at the hardware store or in woodworking.

• Nitrocellulose lacquer became popular in the 1920s as a fast-drying finish for cars and furniture. It's still a favorite for guitars. It dries by evaporation, so each coat melts slightly into the one below.
• Acrylic lacquer works the same way but uses an acrylic polymer, which resists yellowing better.
• Shellac is the oldest of the three. Flakes of lac resin are dissolved in alcohol and applied thinly. It's the traditional base of French polish on antique furniture.

All three are fine finishes for what they're designed for. The key difference from urushi is the chemistry. They harden when a solvent leaves, while urushi hardens through a reaction that builds a new, cross-linked film.

Resins: polyurethane, epoxy

Polyurethane and epoxy are synthetic resins. They harden through a chemical reaction, either between two mixed parts or with moisture in the air. They're tough, stable and inexpensive, which is why they're everywhere, from floors to tabletops.

So is urushi a resin? Loosely, yes. It's sometimes described as a natural resin, since it's a plant exudate that hardens into a solid film. But it's not a synthetic resin, and it behaves very differently from polyurethane or epoxy. That matters when you see "resin" on a label for a lacquer-look bowl. It almost always means a synthetic coating, not urushi.

Cashew coatings: the closest lookalike

Cashew coatings are made from oil in cashew nut shells. They were developed in Japan as an affordable alternative to urushi. They're widely used on lacquer-look tableware because they can closely imitate urushi's color and gloss. Cashew isn't urushi, and a piece coated in cashew isn't urushi lacquerware.

How to tell urushi from cashew, urethane and other lookalikes, including how Japanese labels word it, is covered in our guide to natural urushi vs imitation finishes.

How to tell what you're looking at

1. Read the label or ask. A maker using real urushi will say so. On Japanese labels, look for 漆 (urushi) or 天然漆 (natural urushi). Terms like "urethane," "cashew" or a vague "lacquer finish" usually mean something else.
2. Check the price and process. Urushi needs many coats with curing time between each. A multi-coat urushi piece at a mass-market price deserves questions (see why Japanese lacquerware is expensive). Our article fukiurushi vs yakitsuke urushi shows how much process goes into each finish.
3. Look at the surface. Synthetic finishes often have a perfectly even, plastic-like shine. Urushi tends to have more depth, and translucent urushi shows color beneath it.
4. Feel it. Urushi is often described as soft and warm in the hand. Thick resin coatings feel glassy and cold.
5. Watch it age. Over years, urushi changes. Translucent layers clear and surfaces gain a soft gloss from handling. Synthetic finishes mostly stay the same until they wear.

Why it matters for things you eat with

For a decorative box, the finish is mostly about looks. For chopsticks, spoons and bowls, it's about how the piece feels at every meal and how it handles washing.

• Feel at the mouth. Urushi's soft surface is a big part of why it's used on chopsticks and bowls in Japan.
• Washing. Traditional urushi on wood is hand wash only. Urushi heat-cured onto stainless steel, like THE URUSHI's stainless pieces, is dishwasher-safe and keeps its deep black. Our guide to black flatware that's dishwasher-safe compares it with coated and plated options.
• Knowing what you have. Whatever the finish, buy from makers who state what it is and how to care for it. For any synthetic coating, check the manufacturer's own food-contact information.

If you'd like real urushi you can use every day, THE URUSHI makes chopsticks, rests, spoons and forks in Kyoto, finished by Wakabayashi Butsugu Mfg. Co., Ltd. (founded 1830). Our stainless pieces start as Tsubame-Sanjo steel and are coated and heat-cured six times, three rounds for each half. The collection is on Kickstarter now, with rewards expected to ship around March 2027.

See THE URUSHI on Kickstarter or browse the collection overview.

Related reading

• What Is Urushi? Japanese Lacquer Explained
• Is Urushi Lacquer Food Safe? What Cured Means
• Tame-nuri: Why Lacquer Chopsticks Change Color
• Why Is Japanese Lacquerware So Expensive?
• Black Flatware That's Dishwasher-Safe: What Lasts

Frequently asked questions

Is urushi the same as lacquer?

Urushi is one kind of lacquer: the natural Asian lacquer made from the sap of the lacquer tree. In English, "lacquer" also covers nitrocellulose, acrylic and shellac finishes, which are completely different materials. So all urushi is lacquer, but most things sold as lacquer in Western stores are not urushi.

Is urushi a resin?

Loosely, yes. Urushi is a natural plant exudate that hardens into a solid film, so it's sometimes called a natural resin. It isn't a synthetic resin like polyurethane or epoxy, and it cures differently, through an enzyme reaction in humid air or through heat.

What is the difference between Japanese and Chinese lacquer?

Both come mainly from the same tree species, Toxicodendron vernicifluum, and much of the urushi used in Japan today is imported from China. The differences lie mostly in refining, technique and design traditions rather than in the raw material. Related trees in Southeast Asia produce lacquers with somewhat different chemistry.

Is cashew lacquer real urushi?

No. Cashew coatings are made from cashew nut shell oil and were developed in Japan as a cheaper alternative to urushi. They can look very similar, but they're a different material and age differently. Check the label for "urushi" or 漆 if you want the real thing.

Why is Japanese lacquerware called "japan"?

In 17th- and 18th-century Europe, lacquerware from Japan was so admired that "japan" became a word for lacquer and lacquerware, much as "china" became a word for porcelain. European workshops imitated it with varnishes, a process called "japanning."