--- product_id: 355408369 title: "CRC Knock'er Loose Penetrating Solvent, 13 oz Aerosol Can, Reddish" brand: "crc" price: "244.63 DT" currency: TND in_stock: true reviews_count: 5 category: "Crc" url: https://www.desertcart.tn/products/355408369-crc-knocker-loose-penetrating-solvent-13-oz-aerosol-can-reddish store_origin: TN region: Tunisia --- # fast-acting rust penetration distinctive reddish formula 13 oz precision aerosol CRC Knock'er Loose Penetrating Solvent, 13 oz Aerosol Can, Reddish **Brand:** crc **Price:** 244.63 DT **Availability:** ✅ In Stock ## Summary > 🔧 Unlock Rust’s Grip with the Reddish Elixir of Freedom! ## Quick Answers - **What is this?** CRC Knock'er Loose Penetrating Solvent, 13 oz Aerosol Can, Reddish by crc - **How much does it cost?** 244.63 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/355408369-crc-knocker-loose-penetrating-solvent-13-oz-aerosol-can-reddish) ## Best For - crc enthusiasts ## Why This Product - Trusted crc brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Dual-Action Formula:** Penetrates rust and lubricates simultaneously for lasting protection and smooth operation. - • **Visible Red Application:** Easily track coverage with the unique reddish tint—never miss a stubborn spot again. - • **Versatile Heavy-Duty Use:** Trusted across automotive, marine, agricultural, and industrial settings for all your stuck parts. - • **Precision Aerosol Delivery:** Controlled spray reaches tight, hard-to-access areas minimizing waste and mess. - • **Industrial-Strength Rust Penetration:** Break free seized bolts and parts in minutes with powerful corrosion dissolving action. ## Overview CRC Knock’er Loose is a 13 oz industrial-grade penetrating solvent that rapidly dissolves rust, corrosion, and grime to free stuck nuts, bolts, and metal parts. Featuring a dual-action formula with long-lasting lubrication and a distinctive red tint for precise application, it’s ideal for automotive, marine, agricultural, and industrial maintenance. NSF H2 registered and 50-state compliant, this aerosol spray delivers professional-grade performance for both DIY enthusiasts and pros. ## 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: It works AMAZINGLY!!! - 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!!! ## 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 | |---------------|-------| | ASIN | B000LEVE00 | | Best Sellers Rank | #390,963 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #245 in Rust Prevention | | Brand | CRC | | Brand Name | CRC | | Container Type | Tin | | Customer Reviews | 4.7 out of 5 stars 1,478 Reviews | | Flash Point | 64 Degrees Celsius | | Global Trade Identification Number | 00078254030203 | | Item Form | Spray | | Item Weight | 454 g | | Liquid Volume | 16 Fluid Ounces | | Model Number | 03020 | | Package Information | Tin | | Part Number | 03020 | | Recommended Uses For Product | General maintenance, loosening stuck parts, removing rust, cleaning | | Specific Uses For Product | Prevent Corrosion | | UPC | 078254030203 | | Unit Count | 13.0 Ounce | ## Product Details - **Brand:** CRC - **Package Information:** Tin - **Liquid Volume:** 16 Fluid Ounces - **Item Weight:** 1 Pounds - **Recommended Uses For Product:** General maintenance, loosening stuck parts, removing rust, cleaning ## Images ![CRC Knock'er Loose Penetrating Solvent, 13 oz Aerosol Can, Reddish - Image 1](https://m.media-amazon.com/images/I/71aBGRJDV5L.jpg) ![CRC Knock'er Loose Penetrating Solvent, 13 oz Aerosol Can, Reddish - Image 2](https://m.media-amazon.com/images/I/81xW4kKCECL.jpg) ![CRC Knock'er Loose Penetrating Solvent, 13 oz Aerosol Can, Reddish - Image 3](https://m.media-amazon.com/images/I/81yUQPD+ApL.jpg) ![CRC Knock'er Loose Penetrating Solvent, 13 oz Aerosol Can, Reddish - Image 4](https://m.media-amazon.com/images/I/91XA2r+CZKL.jpg) ![CRC Knock'er Loose Penetrating Solvent, 13 oz Aerosol Can, Reddish - Image 5](https://m.media-amazon.com/images/I/81yUr+QcCOL.jpg) ## 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 29 May 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! ### ⭐⭐⭐⭐⭐ It works AMAZINGLY!!! *by L***R on 21 April 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!!! ### ⭐⭐⭐⭐⭐ loosens rusted bolts *by K***L on 12 June 2026* Works better than other oils ## 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/355408369-crc-knocker-loose-penetrating-solvent-13-oz-aerosol-can-reddish](https://www.desertcart.tn/products/355408369-crc-knocker-loose-penetrating-solvent-13-oz-aerosol-can-reddish) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-08*