---
product_id: 3925708
title: "WD-40 Specialist Penetrant, Smart Straw, Fast-Acting, 11 OZ [1-Pack] | Penetrant for Metal, Rubber & Plastic Threads, Locks, Nuts, Industrial Strength for Automotive & Heavy-Duty Construction"
brand: "wd-40 specialist"
price: "87.61 DT"
currency: TND
in_stock: true
category: "Wd 40 Specialist"
url: https://www.desertcart.tn/products/3925708-wd-40-specialist-penetrant-smart-straw-fast-acting-11-oz
store_origin: TN
region: Tunisia
---

# Smart Straw dual spray precision Fast-acting rust penetrant Protects against future corrosion WD-40 Specialist Penetrant, Smart Straw, Fast-Acting, 11 OZ [1-Pack] | Penetrant for Metal, Rubber & Plastic Threads, Locks, Nuts, Industrial Strength for Automotive & Heavy-Duty Construction

**Brand:** wd-40 specialist
**Price:** 87.61 DT
**Availability:** ✅ In Stock

## Summary

> 🛠️ Unlock stuck parts and keep your gear corrosion-free—because every second counts!

## Quick Answers

- **What is this?** WD-40 Specialist Penetrant, Smart Straw, Fast-Acting, 11 OZ [1-Pack] | Penetrant for Metal, Rubber & Plastic Threads, Locks, Nuts, Industrial Strength for Automotive & Heavy-Duty Construction by wd-40 specialist
- **How much does it cost?** 87.61 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/3925708-wd-40-specialist-penetrant-smart-straw-fast-acting-11-oz)

## 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

- • **Break Rust in Seconds:** Penetrates up to 2x faster than competitors for rapid rust release
- • **Long-Lasting Protection:** Leaves a thin, dust-resistant layer that prevents future corrosion
- • **Precision or Power Spray:** Smart Straw sprays 2 ways—target tight spots or cover broad areas effortlessly
- • **Safe on Multiple Materials:** Formulated for metal, rubber, and plastic without damage or residue
- • **Trusted Industrial Strength:** Used by pros worldwide, VOC compliant in all 50 states

## Overview

WD-40 Specialist Penetrant is a professional-grade, fast-acting lubricant spray designed to break rust and corrosion on nuts, bolts, locks, and more. Featuring a Smart Straw for dual spray modes, it penetrates up to twice as fast as competitors and leaves a protective layer to prevent future rust. Safe on metal, rubber, and plastic, this 11 oz aerosol is VOC compliant nationwide and trusted by experts for industrial and home use.

## 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.

## 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 | #36 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Industrial Lubricants |
| Brand Name | WD-40 Specialist |
| Container Type | Can |
| Customer Reviews | 4.8 4.8 out of 5 stars (18,686) |
| Flash Point | 40 °C |
| Global Trade Identification Number | 30079567300008 |
| Included Components | WD-40 Specialist Rust Release Penetrant Spray with Blu Torch and SMART STRAW SPRAYS 2 WAYS, 11 OZ |
| Item Form | Spray |
| Item Type Name | WD40 300004 Specialist Penetrant Spray Smart Straw - 11 oz. |
| Item Weight | 11 ounces |
| Liquid Volume | 11 fluid ounces |
| Manufacturer | The WD-40 Company |
| Material | Plastic |
| Model Number | 300004 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | 300007 |
| Recommended Uses For Product | Industrial |
| Specific Uses For Product | Prevent Corrosion |
| UPC | 079567300007 |
| Unit Count | 1 Count |
| Warranty Description | As Labeled |

## 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, Smart Straw, Fast-Acting, 11 OZ [1-Pack] | Penetrant for Metal, Rubber & Plastic Threads, Locks, Nuts, Industrial Strength for Automotive & Heavy-Duty Construction - Image 1](https://m.media-amazon.com/images/I/51xzyiTUkOL.jpg)
![WD-40 Specialist Penetrant, Smart Straw, Fast-Acting, 11 OZ [1-Pack] | Penetrant for Metal, Rubber & Plastic Threads, Locks, Nuts, Industrial Strength for Automotive & Heavy-Duty Construction - Image 2](https://m.media-amazon.com/images/I/81YKJKlRIWL.jpg)
![WD-40 Specialist Penetrant, Smart Straw, Fast-Acting, 11 OZ [1-Pack] | Penetrant for Metal, Rubber & Plastic Threads, Locks, Nuts, Industrial Strength for Automotive & Heavy-Duty Construction - Image 3](https://m.media-amazon.com/images/I/81xi9bV5b-L.jpg)
![WD-40 Specialist Penetrant, Smart Straw, Fast-Acting, 11 OZ [1-Pack] | Penetrant for Metal, Rubber & Plastic Threads, Locks, Nuts, Industrial Strength for Automotive & Heavy-Duty Construction - Image 4](https://m.media-amazon.com/images/I/81gXxuzHFgL.jpg)
![WD-40 Specialist Penetrant, Smart Straw, Fast-Acting, 11 OZ [1-Pack] | Penetrant for Metal, Rubber & Plastic Threads, Locks, Nuts, Industrial Strength for Automotive & Heavy-Duty Construction - Image 5](https://m.media-amazon.com/images/I/81dn5jc9vaL.jpg)

## Available Options

This product comes in different **Size, Style** 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

## Frequently Bought Together

- WD-40 Specialist Penetrant with Smart Straw, Penetrant for Metal, Rubber and Plastic Threads, Locks and Nuts, Industrial Strength Fast-Acting Formula, 11 Oz.
- WD-40 Specialist Silicone Lubricant with SMART STRAW SPRAYS 2 WAYS, 11 OZ
- WD-40 Specialist White Lithium Grease Spray with SMART STRAW SPRAYS 2 WAYS, 10 OZ

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-08-05*