WD-40 Professional Penetrant 400 ml – code: 7235542 – Sipafer

WD-40 professional unlocker 400 ml – code 7235542 (Sipafer)

The WD-40 professional penetrating oil in format 400 ml (supplier code 7235542, supply SIPAFER S.P.A.is a multipurpose spray designed for nautical maintenance and for general use in the workshop, garage, or on board. It is a practical solution when you need to work on components exposed to moisture, oxidation, or dirt, or when you need to restore the smoothness of mechanisms and reduce friction noise.

The product integrates a dispensing system that allows, with a single touch, to switch from precision spray to the wide-range vaporization. This way you can quickly choose the most suitable application: targeted on hard-to-reach points or broader on large surfaces.

Features and details

This WD-40 is described as water-repellent, anticorrosive, lubricant, penetrating oil and detergent. The combination of functions makes it useful in many typical maintenance situations, especially where the environment (such as marine) can promote moisture and rust formation.

Dispensing: precision or wide range

The “dual” spray system allows you to adapt the application to the type of intervention:

• Precision spray: suitable for specific points, joints, screws, hinges, linkages, and hard-to-access areas.
• Wide-range vaporization: useful for treating larger areas, distributing the product evenly over wide surfaces.

Declared properties

• Water-repellent: helps eliminate moisture from treated surfaces.
• Anti-corrosive: helps protect against rust.
• Lubricant: promotes the smooth movement of moving parts and can help stop squeaks.
• Penetrating oil: useful for loosening stuck mechanisms and freeing bolts or rusted parts.
• Detergent: helps clean residues and surface dirt during maintenance work.

Formula: silicone-free and non-conductive

The product is indicated as silicone-free and non-conductive to electricity. This information is particularly relevant in technical contexts where silicone residues are to be avoided and where electrical components or connections may be present (provided that use is always carried out with care and according to good maintenance practices).

Product data

• Format: 400 ml
• Supplier product code: 7235542
• Supplier: SIPAFER S.P.A.
• SKU: SIPA0000037

Typical applications (nautical and general maintenance)

In the nautical field and generally in maintenance, a multi-purpose penetrant is often chosen for quick interventions on metal parts and mechanisms subject to oxidation, humidity, or friction. This product is suitable for:

• Freeing bolts and rusted parts when screws are difficult to move.
• Loosening stuck mechanisms (for example joints, hinges, levers) that have lost smoothness.
• Stopping squeaks caused by friction between moving parts.
• Eliminating moisture from surfaces and components, useful in environments exposed to condensation or splashes.
• Cleaning and protecting against rust during routine maintenance operations.

The ability to choose between targeted spray and wide vaporization makes it easier to treat both details (such as a screw or pin) and larger areas (such as metal surfaces to be restored and protected).

Advantages in use

• Multi-purpose in a single product: water-repellent, anti-corrosive, lubricant, penetrant, and cleaner, useful for various maintenance needs.
• Flexible application: quick switch between precision spray and wide range, for targeted interventions or on larger surfaces.
• Support for preventive maintenance: can be used to clean and protect, reducing the onset of rust on treated parts.
• Technical choice of the formula: the absence of silicone and the indication of non-electrical conductivity can be useful in contexts where silicone residues are to be avoided and where electrical components are present.

In practice, it is a product “to keep on board” or in the workshop to quickly manage small recurring problems: screws that get stuck, friction noises, moisture on surfaces and the need for cleaning/protection.

Usage and operational notes

To achieve a neat and consistent application with the type of intervention, it is useful to choose the dispensing mode in advance (precision or wide range) and work on surfaces that are as accessible and clean as possible.

Practical indications

• For targeted interventions (screws, nuts, pins, hinges): use the precision spray to reduce waste and reach the point of interest.
• For larger surfaces: use wide-range vaporization for a more uniform distribution.
• For cleaning and protection: after application, consider removing excess with a cloth, especially in areas where residues are not desired.

Notes of caution

As with all maintenance sprays, it is advisable to operate in a controlled manner, avoiding unnecessary applications on sensitive surfaces and paying attention near electrical components or areas where the product should not settle. If the intervention concerns particularly delicate parts or specific finishes, it is good practice to perform a test in a less visible area.

Product code: 7235542 – Format: 400 ml.

FAQ – Frequently Asked Questions

Is this WD-40 suitable for boat maintenance?

Yes, it is suitable for nautical and general maintenance: it can help eliminate moisture, free rusted parts, lubricate, and protect against rust.

What is the difference between precision spray and wide-area vaporization?

Precision spray is designed for targeted and hard-to-reach points; wide-area vaporization is useful for distributing the product over larger surfaces. The switch happens with a single touch.

Does the product contain silicone?

No, it is declared silicone-free.

Is it electrically conductive?

The product is declared non-conductive. When used near electrical components, it is still advisable to apply carefully and in a controlled manner.

What is the format and product code?

The format is 400 ml and the supplier product code is 7235542 (supplied by SIPAFER S.P.A.).