--- product_id: 12984494 title: "CRC Knock’er Loose Penetrating Solvent 03020 – [Reddish] 13 WT. Oz., Industrial Grade Penetrating Solvent and Lubricant" price: "148.10 DT" currency: TND in_stock: true reviews_count: 8 url: https://www.desertcart.tn/products/12984494-crc-knock-er-loose-penetrating-solvent-03020-reddish-13-wt store_origin: TN region: Tunisia --- # Fast-acting rust penetration Visible reddish formula for precise application 13 oz aerosol for targeted spray CRC Knock’er Loose Penetrating Solvent 03020 – [Reddish] 13 WT. Oz., Industrial Grade Penetrating Solvent and Lubricant **Price:** 148.10 DT **Availability:** ✅ In Stock ## Summary > 🛠️ Unlock the power of precision rust relief — don’t let stuck bolts hold you back! ## Quick Answers - **What is this?** CRC Knock’er Loose Penetrating Solvent 03020 – [Reddish] 13 WT. Oz., Industrial Grade Penetrating Solvent and Lubricant - **How much does it cost?** 148.10 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/12984494-crc-knock-er-loose-penetrating-solvent-03020-reddish-13-wt) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Dual-Action Defense:** Penetrates deeply while providing long-lasting lubrication to prevent future rust and friction. - • **Precision Red Spray:** Distinctive red color ensures you never miss a spot, guaranteeing thorough coverage every time. - • **Mess-Free Application:** 13 oz aerosol delivers controlled spray to reach tight, hard-to-access areas with minimal waste. - • **Rust-Busting Powerhouse:** Industrial-strength formula rapidly dissolves rust, corrosion, and grime to free stuck bolts and parts. - • **Versatile Industrial Champion:** Perfect for automotive, marine, agricultural, and workshop use on nuts, bolts, hinges, chains, and more. ## Overview CRC Knock’er Loose Penetrating Solvent 03020 is an industrial-grade, fast-acting rust penetrant and lubricant featuring a unique reddish formula for visible application. Its dual-action formula not only frees seized nuts, bolts, and hinges but also protects against future corrosion. Packaged in a 13 oz aerosol can, it delivers precise spray for professional and DIY use across automotive, marine, agricultural, and manufacturing settings. Trusted by over 1,500 users with a 4.7-star rating, it’s the go-to solution for tackling stubborn rust with confidence. ## Description CRC Knock’er Loose penetrates cracks, machine assemblies, frozen connections, and fittings to quickly dissolve rust, corrosion, grime, and grease. The 50-state compliant formula makes it easy to disassemble tools, automobile engines, plant machinery, and other equipment for routine maintenance. This industrial-grade penetrating solvent is NSF H2 registered for use in meat and poultry plants. It works effectively on various metal fittings, hinges, bushings, washers, lugs, nuts, bolts, metal joints, and couplings. Review: CRC Knock’er Loose: The Superhero of Starter Bolts! - So, picture this: My husband, the fearless shade tree mechanic, facing off against the stubborn starter bolts of his beloved Ford F150 pickup. These bolts, determined to defy his every effort, seemed to be mocking him with their unyielding grip. Enter stage left: CRC Knock’er Loose Penetrating Solvent 03020 – the trusty sidekick in his battle against rust and resistance! Let me tell you, folks, this stuff is like a superhero in a can. With a mere squirt, it swoops in to save the day, penetrating even the tightest of spaces with its industrial-grade might. As my husband affectionately calls it, this "reddish elixir of liberation" works miracles, loosening those stubborn bolts with a satisfying pop that signals victory! Now, I'm no stranger to the drama that unfolds in the garage when my husband is knee-deep in his DIY escapades. But let me tell you, CRC Knock’er Loose turned what could have been a comedy of errors into a triumph worthy of its own action movie sequel. With each bolt that surrendered to its powers, my husband's confidence soared higher than a superhero taking flight. And the best part? The humor! Oh, the laughter that ensued as my husband regaled me with tales of his epic battles with the bolts, complete with sound effects and dramatic reenactments. Who knew a can of penetrating oil could bring so much joy to our lives? So, to all the shade tree mechanics out there, I wholeheartedly recommend CRC Knock’er Loose Penetrating Solvent 03020. Whether you're facing off against starter bolts, rusty hinges, or any other stubborn foe, this superhero in a can is here to save the day – and provide a good laugh along the way! Review: Awesome product - This stuff is awesome works great will definitely be buying more ## Features - FAST-ACTING RUST PENETRATION: Industrial-strength solvent rapidly penetrates rust, scale, and corrosion to help loosen stubborn seized nuts, bolts, hinges, and threaded components. - DUAL-ACTION FORMULA: Combines a penetrating solvent with long-lasting lubrication to help free frozen parts and continue protecting them from future rust and friction. - DISTINCTIVE REDDISH FORMULA: The visible red color makes it easy to see where you've applied the product, helping ensure thorough coverage on rusted parts. - VERSATILE INDUSTRIAL USE: Suitable for automotive, marine, agricultural, manufacturing, and home workshop applications — works on nuts, bolts, chains, hinges, and linkages. - 13 OZ AEROSOL SPRAY: Precision spray delivery reaches tight, hard-to-access areas with controlled application, helping reduce waste and mess in professional and DIY settings. ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.7 out of 5 stars 1,518 Reviews | ## Product Details - **Brand:** CRC - **Item Weight:** 1 Pounds - **Liquid Volume:** 16 Fluid Ounces - **Material:** Metal - **Package Information:** Can ## Images ![CRC Knock’er Loose Penetrating Solvent 03020 – [Reddish] 13 WT. Oz., Industrial Grade Penetrating Solvent and Lubricant - Image 1](https://m.media-amazon.com/images/I/71aBGRJDV5L.jpg) ![CRC Knock’er Loose Penetrating Solvent 03020 – [Reddish] 13 WT. Oz., Industrial Grade Penetrating Solvent and Lubricant - Image 2](https://m.media-amazon.com/images/I/81xW4kKCECL.jpg) ![CRC Knock’er Loose Penetrating Solvent 03020 – [Reddish] 13 WT. Oz., Industrial Grade Penetrating Solvent and Lubricant - Image 3](https://m.media-amazon.com/images/I/81yUQPD+ApL.jpg) ![CRC Knock’er Loose Penetrating Solvent 03020 – [Reddish] 13 WT. Oz., Industrial Grade Penetrating Solvent and Lubricant - Image 4](https://m.media-amazon.com/images/I/91XA2r+CZKL.jpg) ![CRC Knock’er Loose Penetrating Solvent 03020 – [Reddish] 13 WT. Oz., Industrial Grade Penetrating Solvent and Lubricant - Image 5](https://m.media-amazon.com/images/I/81yUr+QcCOL.jpg) ## Available Options This product comes in different **Number Of Items** options. ## Questions & Answers **Q: Why do so many more people seem to use and recommend pb blaster, compared to knock'er loose? is pb just hype or is kl actually better?** A: Its all opinion. But I am a 30 professional auto technician/shop owner and my opinion is KL or aerokroil is best. PB does great advertising. **Q: does this work on cast iron?** A: Not sure what you are trying to do, but we use the Knocker loose for rusted and hard to remove fasteners from various types of material, if you are having an issue with a bolt or some sort of fastener that you are trying to remove this product works great for that aspect,,hope this helps **Q: How does this compare to Kroil?** A: I prefer this to Kroil **Q: does this contain silicone? We are an auto body paint shop and must have silicone free** A: Contains petroleum distillates. Does not mention silicone on ingredient label. ## Customer Reviews ### ⭐⭐⭐⭐⭐ CRC Knock’er Loose: The Superhero of Starter Bolts! *by U***7 on May 29, 2024* So, picture this: My husband, the fearless shade tree mechanic, facing off against the stubborn starter bolts of his beloved Ford F150 pickup. These bolts, determined to defy his every effort, seemed to be mocking him with their unyielding grip. Enter stage left: CRC Knock’er Loose Penetrating Solvent 03020 – the trusty sidekick in his battle against rust and resistance! Let me tell you, folks, this stuff is like a superhero in a can. With a mere squirt, it swoops in to save the day, penetrating even the tightest of spaces with its industrial-grade might. As my husband affectionately calls it, this "reddish elixir of liberation" works miracles, loosening those stubborn bolts with a satisfying pop that signals victory! Now, I'm no stranger to the drama that unfolds in the garage when my husband is knee-deep in his DIY escapades. But let me tell you, CRC Knock’er Loose turned what could have been a comedy of errors into a triumph worthy of its own action movie sequel. With each bolt that surrendered to its powers, my husband's confidence soared higher than a superhero taking flight. And the best part? The humor! Oh, the laughter that ensued as my husband regaled me with tales of his epic battles with the bolts, complete with sound effects and dramatic reenactments. Who knew a can of penetrating oil could bring so much joy to our lives? So, to all the shade tree mechanics out there, I wholeheartedly recommend CRC Knock’er Loose Penetrating Solvent 03020. Whether you're facing off against starter bolts, rusty hinges, or any other stubborn foe, this superhero in a can is here to save the day – and provide a good laugh along the way! ### ⭐⭐⭐⭐⭐ Awesome product *by J***L on May 28, 2026* This stuff is awesome works great will definitely be buying more ### ⭐⭐⭐⭐⭐ It works AMAZINGLY!!! *by L***R on April 21, 2026* I have a PTO shaft that had sat out in the weather for 10 years, I soaked it every night for a month, smacked it with a hammer and it never moved, I sprayed this on it and after one night It is apart! This stuff is AMAZING!!! ## Frequently Bought Together - CRC Knock’er Loose Penetrating Solvent 03020 – [Reddish] 13 WT. Oz., Industrial Grade Penetrating Solvent and Lubricant - CRC Screwloose Super Penetrant 03060 – 11 WT OZ, Plastic Safe Aerosol for Corroded Fasteners, Seized Mechanical Components - CRC Knock’er Loose Plus Penetrating Solvent 03027 – [Reddish] 11.5 WT. Oz., Industrial Grade Penetrating Solvent and Lubricant w/ Freeze Shock Action --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/12984494-crc-knock-er-loose-penetrating-solvent-03020-reddish-13-wt](https://www.desertcart.tn/products/12984494-crc-knock-er-loose-penetrating-solvent-03020-reddish-13-wt) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-24*