If you've ever rummaged through a shed, a granddad's workshop, or a decorator's van, chances are you've spotted a tin of Rustins Danish Oil tucked in among the brushes and rags. It's one of those products that's been around for so long it barely needs an introduction, and yet most people using it have no idea just how far back the story goes, or why this particular oil earned the right to call itself "the original".
We stock the full Rustins Danish Oil range here, from a handy 250ml tin right up to a 5L drum for bigger jobs, and every time we restock it we're reminded that this isn't just another finish on the shelf. It's a product with a proper British pedigree, and understanding where it came from helps explain why it's still trusted by joiners, furniture restorers and weekend DIYers alike.
A London beginning
The Rustins story starts in 1924, when a young man named Sidney Rustin opened his first shop in Shoreditch, east London, selling wood finishing products. His father was a cabinetmaker, so Sidney grew up around timber and understood, better than most, how a good finish could transform a plain piece of wood. He started the business with just £50, borrowed from his mother, which by today's standards is a genuinely modest beginning for what would become one of Britain's best known wood care brands.
A factory followed in 1932, but the business faced a serious setback during the Second World War when the premises were destroyed in one of the first night raids on London. Rather than folding, the company relocated to Cricklewood in north west London, and that's still where Rustins is based today, a century on.
From a shop to a household name
Sidney's son, Ronnie Rustin, took the reins and grew the business substantially, steering it until 2008 and helping turn Rustins into a name that's now exported to more than 30 countries. Under his stewardship the company built a reputation not just for Danish oil, but for a whole catalogue of wood finishes, specialist paints and decorating products, including the well known Strypit paint remover, developed back in 1947.
It hasn't all been plain sailing. A fire in 2004 destroyed the company's warehouse along with several neighbouring properties, yet Rustins rebuilt on the same Cricklewood site and kept supplying trade and DIY customers throughout. That kind of resilience says a lot about a business, and it's part of why the brand still carries genuine weight with people who've used it for decades.
Why "The Original" isn't just marketing talk
You'll often see Rustins Danish Oil labelled as "The Original", and while every brand likes a good tagline, this one has some history behind it. Rustins was among the earliest UK manufacturers to produce and popularise Danish oil, helping introduce what was then a fairly niche continental finish to British tradesmen and hobbyists. It became one of the company's signature products, sitting alongside Strypit as one of the names most closely tied to the Rustins brand.
That early head start matters because it means the formula has had decades to be refined, tested and trusted, rather than being a recent addition to a shelf of finishes. When people reach for our Rustins Danish Oil 500ml, a lot of them are doing exactly what their parents or grandparents did with the same tin decades earlier.
What Danish oil actually is
For anyone new to it, Danish oil is a penetrating wood finish, typically a blend of tung oil and linseed oil with varnish resins and solvents added to help it soak into the timber and then harden. Unlike a varnish or lacquer, which sits on top of the wood as a film, Danish oil works its way into the grain itself. That's why it tends to give such a natural, hand finished look rather than a plasticky sheen, and why so many furniture makers and restorers favour it over surface coatings.
Traditionally, tung oil comes from the seeds of the tung tree, native to China, while linseed oil is pressed from flax seeds, so despite the "Danish" name, none of the raw ingredients are actually unique to Denmark. The name is generally thought to come from the clean, understated Scandinavian furniture style that became popular through the mid 20th century, where this kind of low sheen, natural oil finish was the preferred way to treat teak and other hardwoods rather than a heavier, glossier varnish.
How it typically performs
Most jobs need two to three coats to build up a durable finish. The oil is usually touch dry after approximately 4 to 8 hours, and a second coat can typically be applied after around 12 to 24 hours, though this depends on temperature, humidity and how thirsty the wood is. Full curing usually takes around 7 days, so it's worth being a little patient before putting a freshly oiled surface through daily use. Each coat tends to deepen and enrich the natural colour of the timber while enhancing the grain, which is one of the main reasons people choose Danish oil over a clear varnish in the first place.
Choosing the right size for your project
One of the practical advantages of sticking with a long established brand like Rustins is the range of pack sizes available, which makes it easy to buy roughly the right amount rather than over ordering or running short halfway through a job. For a small project like a single chair or a picture frame, the 250ml tin is usually plenty. Larger furniture pieces, doors or a modest run of skirting boards tend to suit the 1 litre size better, and if you're working through a full kitchen's worth of cabinetry, flooring or a whole workshop of tool handles, the 2.5 litre or 5 litre drum will keep you going without constantly stopping to open a fresh tin.
You can browse the full range, along with the other Danish oil brands we stock, on our Danish oil collection page.
A quick safety note worth knowing
One thing that catches a lot of first time users out is what to do with the rags and cloths used to apply the oil. Because linseed and tung oil generate heat as they cure, oil soaked rags bunched up in a bin or left in a pile can, in rare cases, generate enough heat to combust on their own. It's a genuine fire safety point rather than scaremongering, so once you're done, lay used rags flat outside to dry fully before disposing of them, or submerge them in a metal container of water. It only takes a moment, and it's a habit worth getting into whenever you're working with any oil based wood finish, not just Rustins.
A century of wood care, and counting
In 2024, Rustins marked its 100th year in business, a genuine milestone for a family founded company that's weathered a world war, a warehouse fire and a century of changing tastes in home decorating. Over that time the business has grown well beyond the original Danish oil and Strypit range, and today it sits alongside a portfolio of other well known decorating names built up or acquired over the decades. Under current leadership the company continues to invest in research and development, including more environmentally conscious formulations, while still serving the same mix of DIY enthusiasts and trade professionals that Sidney Rustin was originally selling to back in 1924.
That kind of longevity isn't an accident. It comes from a product that does what it says, applied by generations of people who've passed the habit down, tin to tin, shed to shed, and it's part of why so many trade decorators still specify it by name rather than just asking for "a danish oil" off the shelf.
Why it's still worth reaching for
There are newer wood finishes on the market, some with flashier packaging and bolder claims, but there's something reassuring about using a product with this much history behind it. Rustins Danish Oil has survived because it works, because the company behind it has stuck to its trade, and because generations of woodworkers have simply kept coming back to it.
Whether you're reviving an old table, finishing a new piece of furniture, or just topping up a project you started last summer, it's worth knowing that the tin in your hand carries a hundred years of wood finishing know-how behind it. If you haven't tried it yet, our Rustins Danish Oil range is a genuinely solid place to start, and if you're comparing it against the other brands we stock, our Danish oil collection has the full line-up in one place.
