---
product_id: 3925708
title: "WD-40 Specialist Penetrant with Smart Straw, Penetrant for Metal, Rubber and Plastic Threads, Locks and Nuts, Industrial Strength Fast-Acting Formula, 11 Oz."
brand: "wd-40 specialist"
price: "€ 27.52"
currency: EUR
in_stock: true
reviews_count: 9
category: "Wd 40 Specialist"
url: https://www.desertcart.com.cy/products/3925708-wd-40-specialist-penetrant-with-smart-straw-penetrant-for-metal
store_origin: CY
region: Cyprus
---

# Smart Straw sprays 2 ways: precise or broad Fast-acting formula breaks rust & corrosion Leaves protective anti-corrosion layer WD-40 Specialist Penetrant with Smart Straw, Penetrant for Metal, Rubber and Plastic Threads, Locks and Nuts, Industrial Strength Fast-Acting Formula, 11 Oz.

**Brand:** wd-40 specialist
**Price:** € 27.52
**Availability:** ✅ In Stock

## Summary

> 🛠️ Unlock stuck parts fast with WD-40 Specialist — the pro’s secret weapon!

## Quick Answers

- **What is this?** WD-40 Specialist Penetrant with Smart Straw, Penetrant for Metal, Rubber and Plastic Threads, Locks and Nuts, Industrial Strength Fast-Acting Formula, 11 Oz. by wd-40 specialist
- **How much does it cost?** € 27.52 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/3925708-wd-40-specialist-penetrant-with-smart-straw-penetrant-for-metal)

## Best For

- wd-40 specialist enthusiasts

## Why This Product

- Trusted wd-40 specialist brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Multi-Material Safe:** Effective on metal, rubber, and plastic without damage 🛠️
- • **Dual-Mode Smart Straw:** Switch between wide spray or pinpoint accuracy 🎯
- • **Breaks Rust in Seconds:** Penetrates up to 2x faster to free stuck parts ⚡
- • **Low Odor & VOC Compliant:** Safe for indoor and professional use with minimal fumes 🌿
- • **Trusted Industrial Strength:** Preferred by pros worldwide for reliable corrosion protection 🌍

## Overview

WD-40 Specialist Penetrant is an 11 oz professional-grade spray designed to quickly break rust and corrosion on metal, rubber, and plastic parts. Featuring a patented Smart Straw for dual spray modes, it penetrates up to twice as fast as competitors, leaving a protective layer that prevents future corrosion. Low odor and VOC compliant, it’s trusted globally by industrial professionals to free stuck nuts, bolts, locks, and more with precision and safety.

## Description

Less time fixing and more time enjoying. WD-40 Specialist Penetrant makes it easy to quickly get the job done right so you bask in your accomplishment and move on. Professional-grade WD-40 Specialist Penetrant formula works fast to break the toughest jams and protects parts from future rust & corrosion. Leaves a thin protective layer that prevents future corrosion without attracting dust or other particles. Designed with safety in mind: Low odor formula, VOC compliant in 50 states. Backed by the excellence of WD-40, the world leader in residential and commercial lubricants. Effective in breaking bonds for most materials - metal, rubber, plastic and more. Penetrates up to 2x faster than the competition* - Penetrates rust to free up stuck, frozen, or seized equipment and parts - Safe to use on metal, rubber and plastic parts - Ideal for use on nuts, bolts, threads and locks - 50-state VOC compliant. *Test Lab: Fred Cuneo (3rd Party); Nail Climb Test; Test date: 03/2021. **Test Lab: WD-40 Co. Technical Center (Pine Brook, NJ); ASTM B117; Test date: 02/2021.

Review: Excellent product and allow time for reaction with stuck parts by repetitive applications. - RE: WD-40 Specialist Penetrant With Smart Straw, Penetrant For Metal, Rubber, And Plastic Threads Excellent product and by applying repeititively for several days, saved a dozen expensive locks for re-use saving lots of money. Also works really well on loosening up manifold bolts to remove boat manifold bolts in order to remove manifold gaskets and then install new gaskets able to save all bolts. Will use to loosen boat control cables to prevent stretching and destroying them as well saving lots of money.
Review: Excellent Lubricant for Household Projects - This lubricant works very well for any of those pesky home projects that need a bit of loosening and oiling and is a GREAT price.

## Features

- Everything you need in a professional-grade Penetrating Lubricant: Low-odor, Strong, Fast, and Targeted. WD-40 Specialist Penetrant with a Smart Straw to Spray 2 Ways
- Fast-acting formula breaks rust and corrosion that jam up parts and leaves behind a protective layer that prevents future corrosion
- If it's stuck, WD-40 Specialist Penetrant can help - nuts, bolts, threads, locks, chains, and more
- Target the smallest crevices between threads or cover large areas as easily with the Smart Straw sprays 2 ways: Regular or Precise, Wide or Narrow, Broad or Targeted
- Experts around the world trust WD-40 Specialist formula to deliver professional grade protection every single time

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00631GQGW |
| Best Sellers Rank | #101 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Industrial Lubricants |
| Brand | WD-40 Specialist |
| Customer Reviews | 4.8 4.8 out of 5 stars (17,568) |
| Date First Available | May 25, 2017 |
| Flash Point | 40 Degrees Celsius |
| Global Trade Identification Number | 30079567300008 |
| Is Discontinued By Manufacturer | No |
| Item Form | Spray |
| Item Weight | 11 ounces |
| Item model number | 300004 |
| Liquid Volume | 11 Fluid Ounces |
| Manufacturer | The WD-40 Company |
| Manufacturer Part Number | 300007 |
| Material | Plastic |
| Model | 300004 |
| Number of Items | 1 |
| Package Information | Can |
| Product Dimensions | 24 x 8 x 8 inches |
| Recommended Uses For Product | Industrial |
| Specific Uses For Product | Prevent Corrosion |
| UPC | 079567300007 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** WD-40 Specialist
- **Item Weight:** 11 Ounces
- **Liquid Volume:** 11 Fluid Ounces
- **Material:** Plastic
- **Package Information:** Can

## Images

![WD-40 Specialist Penetrant with Smart Straw, Penetrant for Metal, Rubber and Plastic Threads, Locks and Nuts, Industrial Strength Fast-Acting Formula, 11 Oz. - Image 1](https://m.media-amazon.com/images/I/71ZC7ay+mHL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Is this formula very different from original wd 40 (which didn't work on my rusted outdoor light fixture screws)?**
A: This version is better at loosening rusted parts.  But you have  to remember it take time to creep into the threads and work. You can not just spray it on and start unscrewing, I have had severely rusted fittings that I sprayed every day for a week before they busted loose. There is no miracle product that you can spray and go instantly.

**Q: What makes it better than standard wd 40 for rusted bolt and screw removal?  Also does it work better or worse with a torch compared to original wd 40**
A: No idea what makes it better, if you spray a locked up bolt/nut wait 5-10 min then remove it. 
I’ve had very good luck with it

**Q: Could this be used to release rust and be followed up an application of WD-40 long term corrosion inhibitor?**
A: This product released rust. but I don't believe WD-40 long term corrosion inhibitor is any better as it only lasts one year outdoor use, I used than 3M or NAPA products those are more permanent inhibitors (more like paint)

**Q: will this remove rust on a table saw table?**
A: Not by itself but if you use steel or brass wool with it, it will help remove rust

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent product and allow time for reaction with stuck parts by repetitive applications.
*by R***E on January 2, 2026*

RE: WD-40 Specialist Penetrant With Smart Straw, Penetrant For Metal, Rubber, And Plastic Threads Excellent product and by applying repeititively for several days, saved a dozen expensive locks for re-use saving lots of money. Also works really well on loosening up manifold bolts to remove boat manifold bolts in order to remove manifold gaskets and then install new gaskets able to save all bolts. Will use to loosen boat control cables to prevent stretching and destroying them as well saving lots of money.

### ⭐⭐⭐⭐⭐ Excellent Lubricant for Household Projects
*by A***A on December 30, 2025*

This lubricant works very well for any of those pesky home projects that need a bit of loosening and oiling and is a GREAT price.

### ⭐⭐⭐⭐⭐ Smart Straw, Smarter Fix
*by E***S on August 19, 2025*

Smart Straw, Smarter Fix I’ve used a lot of penetrating oils over the years, and this WD-40 Specialist Penetrant really stood out as one of the better ones. The “Smart Straw” design makes a surprising difference—you can flip it down for a wide spray or snap it up for a precise stream, which saves both time and waste. I used it on a stubborn garden hose fitting, some squeaky hinges, and even a rusted nut on my lawnmower, and in each case it loosened things up quickly. The formula seems to work fast, cutting through rust and corrosion so you don’t have to force anything and risk breaking parts. Another big plus is its versatility. I felt comfortable using it not just on metal, but also around plastic and rubber parts where I’d normally hesitate with harsher sprays. It dries fairly cleanly and doesn’t leave a sticky residue that attracts dirt, which is often a problem with cheaper sprays. The can size feels generous and should last through many household and garage projects. If I had to nitpick, the smell is strong—like most products in this category—so I recommend using it outdoors or in a ventilated area. But in terms of performance, it does exactly what you want: frees things up without fuss. Bottom line: A reliable, fast-acting penetrant that’s made my life easier on everything from locks to mower parts. The Smart Straw alone makes it worth choosing over generic brands.

## Frequently Bought Together

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---

*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-02-19*