WD40 – Specialist Penetrant Fast Release Penetrating Oil (44348)

RRP £13.13Inc VAT
Our Price £7.67 £9.20 Inc. VAT

WD40 Specialist Penetrant Fast Release Penetrating Oil can with a red straw applicator.
WD40 Specialist Penetrant Fast Release Penetrating Oil can with product features listed: penetrates quickly, low surface tension, loosens seized fixings, releases stuck parts, NSF H2 registered.
WD40 Specialist Penetrant Fast Release Penetrating Oil can with smart straw, 360-degree valve, wide and narrow spray options.
WD40 Specialist Penetrant Fast Release Penetrating Oil can with features including loosening seized fixings and rust, low surface tension, penetrating ability, NSF H2 registration, precision spray, wide and narrow spray options, and 360-degree spray capability.
WD40 Specialist Penetrant Fast Release Penetrating Oil can with red straw applicator.
Detailed view of WD-40 spray can nozzle in red and grey, showing flip-up straw mechanism
Hand holding a can of WD40 Specialist Penetrant Fast Release Penetrating Oil spraying with precision nozzle.
WD40 Specialist Penetrant Fast Release Penetrating Oil can with red straw attached, placed on a workbench in a workshop setting.
Person holding a can of WD40 Specialist Penetrant Fast Release Penetrating Oil in front of machinery.
Hand applying WD40 Specialist Penetrant Fast Release Oil to a rusty wheel bolt.
WD-40 Specialist Penetrant Fast Release Penetrating Oil can in a workshop setting with machinery.
Person using WD40 Specialist Penetrant Fast Release Penetrating Oil on mechanical parts outdoors.
Close-up of WD40 Specialist Penetrant being applied to a rusty bolt for lubrication.
WD-40 logo with blue text on a yellow background, shown on square format
Age restriction symbol with bold 18+ inside a red circle on white background

In stock

over-18

The WD-40 Specialist Penetrant Fast Release Spray is a penetrating oil designed to loosen rusted, corroded, or seized components. Its fast-acting formula works deep into crevices, making it ideal for mechanics, engineers, and maintenance professionals handling stuck fasteners, tools, and machinery.

5006 in stock

Quantity:
EAN
5032227443488
MPN
44348
Product Code
W/D44348
SKU
W/D44348

Description

WD40 – Specialist Penetrant Fast Release Penetrating Oil (44348) – Rust & Corrosion Protection

MPN: 44348

Barcode: 5032227443488

You must be at least 18 years old to purchase this product.

WD-40 Specialist Penetrant Fast Release Spray is formulated to free seized, corroded, or rusted components with minimal effort, featuring Smart Straw technology for precision application and wide coverage.

Who This Product Is For

This product is designed for mechanics, maintenance technicians, and workshop professionals who regularly work with metal components and machinery.

It suits those dealing with rusted fasteners, seized mechanical parts, automotive components, and industrial equipment that requires regular maintenance to prevent corrosion.

Key Features

  • Smart Straw Technology: Flip up for precision application or flip down for wider coverage.
  • 360° Valve: Works effectively in any position, even upside down.
  • Fast-Acting Formula: Penetrates rusted and seized parts quickly to reduce downtime.
  • Water-Resistant Protection: Repels moisture to prevent further rust and corrosion.
  • Temperature Resilience: Performs in extreme conditions, from -20°C to +90°C.
  • Safe on Multiple Surfaces: Suitable for metal, rubber, plastics, and painted areas.

Practical Applications

WD-40 Specialist Penetrant is ideal for a range of mechanical and industrial tasks, helping to maintain equipment and prevent component failure.

  • Releasing Rusted Bolts and Nuts: Eases the removal of corroded fastenings.
  • Lubricating Hinges and Locks: Enhances movement and prevents future sticking.
  • Automotive Maintenance: Loosens rusted exhaust bolts, suspension parts, and engine components.
  • Workshop and Industrial Use: Keeps conveyor belts, bearings, and pulleys moving freely.
  • Preventative Protection: Shields metal parts against moisture and corrosion over time.

How This Fits Into a Typical Job

This penetrating oil is typically used during maintenance or repair work when components have become seized due to rust or corrosion. It is applied after surface preparation but before attempting to loosen or remove stuck parts.

The product works by penetrating tight spaces and breaking down rust, allowing time for it to seep into joints before mechanical force is applied. After successful loosening, excess residue may be cleaned from surfaces.

How to Use

  1. Shake Well: Ensure the can is well mixed before use.
  2. Prepare the Surface: Remove any loose rust or dirt, and use a degreaser spray if heavy grime blocks access.
  3. Adjust the Nozzle: Flip up the Smart Straw for precision application or use the standard spray for wider coverage.
  4. Apply Directly: Spray onto the affected area, allowing the liquid to seep into joints and crevices.
  5. Allow Time to Work: Let the penetrant sit for a few minutes before attempting to loosen parts.
  6. Wipe Excess: Wipe away residue with heavy-duty cleaning wipes if needed, to prevent build-up.

Specifications

  • Pack Size: 400ml aerosol
  • Temperature Range: -20°C to +90°C
  • Application Method: Spray with Smart Straw technology
  • Surface Compatibility: Metal, rubber, plastics, painted areas
  • Primary Function: Penetrating oil for rusted and seized components
  • Secondary Function: Moisture protection and corrosion prevention

Storage and Maintenance Tips

  • Store in a cool, dry place away from direct sunlight.
  • Keep the nozzle clean to maintain consistent spray performance.
  • Use regularly on tools and machinery to prevent rust from forming.

Order WD-40 Specialist Penetrant Fast Release Spray today and keep your equipment running smoothly with minimal effort.

  • Specification
    Weight 1.1 kg
    Dimensions 0.00000000 × 0.00000000 × 0.00000000 cm
    Reference Code

    W/D44348

    Option Text

    400ml Spray

    Manufacturer

    WD-40

  • Product FAQs
    Q:

    What is the WD-40 Specialist Penetrant used for?

    A:

    It is designed to break down rust and corrosion, making it easier to free seized or stuck metal components. It is commonly used on bolts, nuts, hinges, locks, and machinery.

    Q:

    Can this product be used on painted surfaces?

    A:

    Yes, it is safe to use on most painted surfaces. However, testing a small area first is recommended to ensure compatibility.

    Q:

    Does WD-40 Specialist Penetrant leave a protective coating?

    A:

    Yes, it creates a barrier that helps repel moisture and reduce the risk of rust forming in the future.

    Q:

    How long does it take for WD-40 Specialist Penetrant to work?

    A:

    The formula starts penetrating immediately, but for heavily rusted parts, allowing it to sit for a few minutes will improve effectiveness.

    Q:

    Can this be used in cold or hot temperatures?

    A:

    Yes, it performs well in temperatures ranging from -20°C to +90°C, making it suitable for various conditions.

    Q:

    Is this safe to use on rubber and plastic parts?

    A:

    Yes, it is compatible with metal, rubber, plastic, and most painted surfaces, making it suitable for a range of applications.

  • Downloads

You May Also Like

WD40 – Multi-Use Maintenance Aerosol Smart Straw – 450ml, Box of 12 (44137-12) WD40 – Multi-Use Maintenance Aerosol Smart Straw – 450ml, Box of 12 (44137-12)
£71.33£156.94
  • Cleans grease and grime
  • Flip-up straw for precision
  • Cleans, Lubricates, Protects
WD40 – Multi-Use Smart Straw Maintenance Aerosol – 300ml (44259) WD40 – Multi-Use Smart Straw Maintenance Aerosol – 300ml (44259)
£6.18£11.00
  • Dual-action spray
  • Corrosion-resistant shield
  • Moisture displacement capability
WD40 – Trigger Multi Use Solvent Resistant Spray Bottle – 500ml (44000) WD40 – Trigger Multi Use Solvent Resistant Spray Bottle – 500ml (44000)
£8.02£12.07
  • Adjustable spray nozzle
  • Solvent-resistant materials
  • Compatible with multiple chemicals
WD40 – Multi Use Maintenance Spray Smart Straw – 300ml, Box of 12 (W/D44259S-12) WD40 – Multi Use Maintenance Spray Smart Straw – 300ml, Box of 12 (W/D44259S-12)
£62.86£132.01
  • Smart Straw Feature
  • Prevents Rust and Corrosion
  • For Cleaning, Lubricating, and Protecting
WD40 – Multi-Use Maintenance Sprayable Lubricant Liquid – 5 Litre (441047) WD40 – Multi-Use Maintenance Sprayable Lubricant Liquid – 5 Litre (441047)
£43.50£71.28
  • Corrosion Control
  • Moisture Displacement
  • Multi-Surface Compatibility
WD40 – Multi-Use Maintenance Sprayable Lubricant Liquid – 5 Litre inc spray bottle (44506) WD40 – Multi-Use Maintenance Sprayable Lubricant Liquid – 5 Litre inc spray bottle (44506)
£45.16£77.09
  • Safe for plastics
  • Protects metal from rust
  • Removes grease and grime