WD-40 Multifunktionsprodukt Review: The Little Blue Can That Saves Your Stuff (and Your Sanity)

You know that sound your door makes when you try to sneak into the kitchen at midnight? That long, slow, horror-movie creak that wakes up the entire house? Or the bike chain that crunches instead of glides. The garden shears that feel welded shut. The rusted screw that laughs at every tool you throw at it.

Those tiny frictions add up. They waste time, kill motivation, and make everyday tasks feel like a fight.

This is the world the engineers behind one of the most iconic sprays on the planet decided to attack head-on.

Enter the hero: WD-40 Multifunktionsprodukt – known globally as the WD-40 Multi-Use Product – the blue-and-yellow can that promises to silence, loosen, protect and revive the things you rely on every day.

What Is WD-40 Multifunktionsprodukt, Really?

WD-40 Multifunktionsprodukt is a multi-purpose maintenance spray engineered to perform four core jobs: lubricating, displacing moisture, protecting against corrosion, and cleaning/lightly loosening grime. It is widely used on metal components like hinges, locks, chains, tools and mechanical parts, and is designed for home users, DIYers and professionals alike.

According to the official product page on WD-40 Germany (wd40.de), the formula is developed to:

• Eliminate squeaks
• Loosen stuck or lightly rusted parts
• Protect metal from rust and corrosion
• Displace moisture (for example after cleaning or exposure to rain)
• Clean and remove light oil, grease and grime

It is available in various formats (including classic spray cans and versions with the well-known Smart Straw applicator), but the underlying promise is the same: one product that does the work of a small shelf of specialty sprays.

Why This Specific Model?

There are dozens of lubricants, greases and specialty sprays out there, so why does the WD-40 Multifunktionsprodukt still dominate toolboxes, workshops and Reddit threads alike?

1. Versatility that actually holds up in real life
On paper, plenty of products call themselves "multi-purpose." In practice, WD-40 Multifunktionsprodukt has become the default solution because it covers a surprisingly wide range of everyday use cases without demanding technical expertise from you.

On WD-40's official European product pages, the brand highlights common scenarios: squeaky hinges, seized bolts, sticky mechanisms, corroded surfaces and damp electrical connections that need moisture displaced before maintenance. Reddit users echo this in countless threads – from reviving old garden tools, to freeing stuck screws on motorcycles, to giving hand tools a light protective coat before winter storage.

2. The moisture displacement advantage
WD stands for "Water Displacement, formula 40." That original purpose still matters. Users frequently praise how well WD-40 helps after exposure to rain, condensation or washing. It doesn't turn your product into a waterproof fortress, but it does help remove moisture from metal components and leaves a thin, protective film.

3. Familiar, predictable behavior
A pattern in user discussions: people trust it because it behaves the same way, year after year. Spray it onto a squeaky hinge, wait a moment, move the hinge – squeak gone. Spray onto a lightly rusted screw, let it penetrate, and you have a much better shot at turning it. It's not magic, but it's consistently good enough that it has become a first-line fix.

4. Ease of application
In current versions, the WD-40 Multifunktionsprodukt is often sold with an integrated Smart Straw system (model and packaging can vary by country), making it easy to switch between a broad spray and a precise jet. That's a real-world benefit: one second you're treating a wide metal surface, the next you're aiming at a tiny lock cylinder.

5. A bridge between casual users and pros
This is not a product only mechanics can understand. It's approachable: you spray, you wait, you move the part. That simplicity, combined with decades of use across industries, makes it uniquely positioned as a go-to maintenance staple in homes, garages and workshops.

At a Glance: The Facts

Feature	User Benefit
Multi-purpose action (lubricates, protects, displaces moisture, cleans/lightly loosens grime)	One can tackles squeaks, light rust, moisture and dirt, reducing the need for multiple specialized sprays.
Designed for metal components and mechanical parts	Ideal for hinges, locks, tools, chains, and hardware around the house, garage and workshop.
Moisture displacement capability	Helps drive off water from metal surfaces after rain, washing or condensation, supporting corrosion protection.
Corrosion protection	Leaves a thin protective film that helps guard against rust on treated metal surfaces.
Available with smart applicator (e.g., Smart Straw, depending on variant)	Switch between precision and wide coverage with a single can, reducing waste and mess.
Recognized global brand by WD-40 Company	Decades of use in homes and industry builds trust and ensures broad availability worldwide.

What Users Are Saying

Look up "WD-40 Multi-Use Product" or "WD-40 Multifunktionsprodukt" on Reddit and you see the same themes come up again and again. General sentiment is strongly positive, bordering on legendary status, but with some important caveats that experienced users highlight.

Common Pros:

• Reliability: People love that it almost always makes things at least better – quieter, looser, smoother.
• Versatility: From bicycles and garage doors to stuck zippers and garden tools, it's used across wildly different scenarios.
• Availability: It's found in supermarkets, hardware stores, online retailers and gas stations, making it easy to restock.
• Great as a first step: Many DIYers use WD-40 as an initial cleaner and penetrant before switching to specialized lubricants where needed.

Common Cons and Misunderstandings:

• Not a heavy-duty grease: Reddit mechanics and cyclists often point out that WD-40 Multifunktionsprodukt is not a replacement for dedicated long-term greases or chain lubes in high-load applications.
• Reapplication may be needed: Because it leaves a relatively light protective film, high-wear or outdoor-exposed parts may need periodic re-spraying.
• Overuse risk: Some users warn against simply spraying everything indiscriminately; on certain delicate surfaces or where long-term lubrication is critical, a more specialized product is better after cleaning.

Overall, the tone is clear: this is the spray you reach for first when something squeaks, sticks or looks a little rusty – and then, if the job is more specialized, you refine from there.

Alternatives vs. WD-40 Multifunktionsprodukt

The maintenance aisle is full of contenders: penetrating oils, silicone sprays, PTFE (Teflon) lubes, dry chain lubricants, white lithium greases, contact cleaners and more. Many of these alternatives are excellent – in their specific niche.

Here's how WD-40 Multifunktionsprodukt fits into that landscape:

• Versus dedicated penetrating oils: Pure penetrants can sometimes outperform WD-40 when dealing with extremely seized, heavily corroded bolts. However, for everyday light rust and stuck parts, WD-40's combination of penetration plus protective effect is usually more than sufficient for home users.
• Versus silicone or PTFE sprays: Silicone and PTFE-based products can offer more durable low-friction films on certain mechanisms. Many users actually use WD-40 first as a cleaner and moisture displacer, then follow up with a specialized silicone/PTFE lubricant where long-term smoothness is critical.
• Versus greases: Grease is king in high-load, slow-moving, exposed or bearing applications. WD-40 Multifunktionsprodukt is not trying to be that – it's more about accessibility and fast, easy fixes than high-load lubrication.

In simple terms: alternatives often win on very specific tasks, but they usually don't replace WD-40 Multifunktionsprodukt as the first thing you grab when something starts acting up.

The Company Behind the Can

WD-40 Multifunktionsprodukt is produced by WD-40 Company, a US-based firm listed on the stock market (ISIN: US92923C1072). The company focuses on maintenance, cleaning and specialty products globally, and the WD-40 Multi-Use Product sits at the center of its portfolio, supported by a family of specialist formulations for bikes, industry, automotive and more.

Who Is WD-40 Multifunktionsprodukt For?

If any of the following sounds like you, you're the target user:

• You want one go-to can in the house that family members can safely grab for most squeaks and stuck parts.
• You maintain bikes, tools, gates, shutters, locks, or garden equipment and want a quick way to clean, free and protect them.
• You're a DIY enthusiast or hobbyist who appreciates a first-line solution before diving into niche products.
• You like the idea of preventive maintenance – giving metal parts a quick spray before winter storage or after a rainy project.

If you're an advanced mechanic or cyclist, you'll likely use WD-40 Multifunktionsprodukt alongside other specialized lubes and greases, not instead of them – and that's exactly how many pros already work.

Final Verdict

We live in a world obsessed with hyper-specialization: a different product for every tiny task. In that context, the enduring popularity of WD-40 Multifunktionsprodukt is almost rebellious. It's one of the few genuinely multi-purpose tools that still earns its place on the shelf.

No, it won't replace your high-end bearing grease. It won't fix every seized bolt that's been in the rain for twenty years. But for everyday reality – the squeaky door, the sticky lock, the dull hand tools, the slightly rusty screw, the moisture on metal after a rainy ride – it delivers a simple, satisfying experience: spray, move, done.

That's why the little blue-and-yellow can has become less of a product and more of a household ritual.

If you want your stuff to last longer, work smoother and annoy you less – and you don't want to become a lubrication expert in the process – WD-40 Multifunktionsprodukt is still one of the smartest, easiest, and most proven upgrades you can make to your home and workshop toolkit.