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🔧 Unlock the power of precision rust release — because stuck parts don’t stand a chance!
WD-40 Specialist Penetrant Spray is a professional-grade, 400ml aerosol designed to rapidly loosen rusted nuts, bolts, and locks. Its low surface tension formula penetrates deep into corroded joints, working effectively across multiple surfaces and a wide temperature range (-20°C to +90°C). Featuring a 360° Smart Straw for precise application, it also deposits a water-resistant barrier to protect against future rust and corrosion, making it the go-to choice for mechanics, engineers, and industrial pros.









| ASIN | B006UCJ5NU |
| Best Sellers Rank | 603 in DIY & Tools ( See Top 100 in DIY & Tools ) 10 in Lubricants |
| Brand Name | WD-40 Specialist |
| Container Type | Tin |
| Country of Origin | United Kingdom |
| Customer Reviews | 4.8 4.8 out of 5 stars (1,200) |
| Flash Point | 44 Degrees Celsius |
| Global Trade Identification Number | 05032227443488 |
| Included Components | 1 x WD40 Specialist Penetrant Aerosol 400Ml |
| Item Form | liquid |
| Item Type Name | Specialist Fast Release Penetrant with Smart Straw 400 ml |
| Item Weight | 374 Grams |
| Liquid Volume | 0.4 Litres |
| Manufacturer | WD-40 Company |
| Material | Grease, Metal, Plastic |
| Model Number | 7780195-HHW |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | 443488-BPSSA02589 |
| Product Warranty | Na. |
| Recommended Uses For Product | Automotive, Marine, Industrial, Nuts, Bolts, Screws, Locks, Pipes, Taps |
| SAE J300 Viscosity Grade | 0W |
| Specific Uses For Product | Car,Wheel,Window |
| UPC | 013523004028 616268302482 |
| Unit Count | 400.0 millilitre |
| Upper Temperature Rating | 90 Degrees Celsius |
| Viscosity | 0w |
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