--- product_id: 15034017 title: "Heavy-Duty Leak Detection Fluid Concentrate makes one gallon, just add water" brand: "ldf" price: "€ 16.60" currency: EUR in_stock: false reviews_count: 8 url: https://www.desertcart.fr/products/15034017-heavy-duty-leak-detection-fluid-concentrate-makes-one-gallon-just store_origin: FR region: France --- # Bubbles last 10x longer High viscosity formula Accurate gas detection Heavy-Duty Leak Detection Fluid Concentrate makes one gallon, just add water **Brand:** ldf **Price:** € 16.60 **Availability:** ❌ Out of Stock ## Summary > 🔧 Detect leaks like a pro with LDF's game-changing formula! ## Quick Answers - **What is this?** Heavy-Duty Leak Detection Fluid Concentrate makes one gallon, just add water by ldf - **How much does it cost?** € 16.60 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/15034017-heavy-duty-leak-detection-fluid-concentrate-makes-one-gallon-just) ## Best For - ldf enthusiasts ## Why This Product - Trusted ldf brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Long-Lasting Bubbles:** Enjoy extended detection time with bubbles that last ten times longer than competitors. - • **Proudly Made in the USA:** Engineered for American conditions, ensuring safety and reliability in every application. - • **Precision Leak Detection:** Experience unmatched accuracy in identifying even the tiniest gas leaks. - • **Cost-Effective Concentrate:** One bottle makes a full gallon, delivering superior performance at half the cost. - • **Innovative Thin Film Technology:** Our unique formula clings to surfaces, ensuring reliable readings on vertical and challenging areas. ## Overview The Heavy-Duty Leak Detection Fluid Concentrate is a high-performance solution designed to accurately detect gas leaks with its advanced formula. Each 16 fl oz bottle makes a full gallon when mixed with water, providing exceptional value. Its unique thin yet viscous layer allows for precise detection, while long-lasting bubbles enhance usability. Proudly made in the USA, this non-toxic and non-flammable product is perfect for various temperature and pressure applications. ## Description Heavy-Duty Leak Detection Fluid Concentrate (HD-LDF-C) is a new high tech advanced external gas leak detection fluid that has extremely high viscosity to resist flow, but at the same time coats as a very thin film, which makes even the smallest leak detection easy and accurate, even on vertical surfaces. H-D LDF is a concentrated liquid in a 16 oz. bottle and must be diluted with tap or distilled water before use. When diluted at the recommended 7:1 ratio, H-D LDF is viscous (resists flow) and stays in place, even on vertical surfaces. Technicians at Fresno Area Express (FAX) noticed they used half the volume of HD-LDF as compared with Snoop, allowing them to cut the volume of leak detection fluid in half! When you discover a leak with HD-LDF, you'll notice that the bubbles formed by H-D LDF last almost ten times longer than bubbles formed using Snoop or other brands. Our bubbles lasts the longest to make it easier for you to accurately detect ALL gas leaks. ★ Freeze Protected★ Freeze Thaw Stable★ Non-Toxic★ Non-Flammable★ No Chlorine★ No Aliphatic Amine★ No Ammonium CompoundsViscous is Good. Thick is Bad. With a thin viscous layer, it clings strongly in place, and accurately detects even the smallest leaks.Recommended dilution is 7:1 and makes one gallon. For a more viscous leak detection fluid, use a 4:1 dilution rate. Review: Air leak detector. - works better then dish soap, if you work on cars with air suspension you need it. Review: worked great - Had a lot of problems with small gas leaks that we could not find. We smelled gas and the gas meter moved when everything was turned off. We tried soap and water and kids bubble making solution with no luck. The day this stuff arrived was the same day the guy from the gas company gave me a speech about how they were not responsible for finding leaks in the house, just up to the gas meter. Anyway he was able to find the leak in a pipe joint. When the guy who had installed that joint came and tightened it, we could tell right away that it was still leaking. The stuff worked like they say on their web site. The bubbles get big and they last pretty long, maybe 2 or 3 minutes. Really easy to see that a leak is happening. After each attempt at fixing the joint, I was able to test it and tell that it was still leaking. It must have saved me countless hours of noticing a faint odor, thinking there might be a leak, but not being sure. Finally when no bubbles showed up we felt really confident that the issue had been dealt with. I was a bit unsure about buying this since there weren't any real reviews. But I was pretty desperate so gave it a try. Highly recommend it to anyone. BTW, it says to dilute about 4 to 1 or 7 to 1 with distilled water. I used filtered water and didn't really measure. I poured some in a jar and added water. It was sort of thick. Applied with a cheap paintbrush. Put on sort of thick. ## Features - ACCURATELY DETECTS THE TINIEST ESCAPING GASES | LDF’s advanced gas leak detection formula covers and clings smoothly and evenly on all construction materials. This provides incredibly accurate reading of even the most meniscal gas leaks with its high viscosity and extremely thin film that makes it easy to form bubbles, even at very low flows. - COATS AS THIN FILM WITH VERY HIGH VISCOSITY | Thick and sticky soap liquid formulations similar to Rectorseal aren’t able to detect the tiniest leaks. LDF's formula solves this with its Thin BUT Viscous Layer which stays in place and resists flow for longer clinging power on vertical surfaces. This ability allows the concentrate to be EXTREMELY accurate in detecting the smallest leaks of refrigerant gases, air, oxygen, other gases. - BUBBLES FORM AND LASTS 10 TEN TIMES LONGER | LDF makes leak detection an even easier job with its long lasting bubbles which allow you more time to accurately detect the smallest leaks. LDF's bubbles last ten times longer compared to snoop slime and other brands, and clings better to provide a reliable and accurate read even in difficult places. - CONCENTRATED FORMULA GIVES YOU MORE SAVINGS | HD-LDF-C is a concentrate, and each 16 fl oz bottle makes a full gallon of its high tech leak detector solution. It is half the cost and works better compared to Snoop. LDF's formulation is made with both value and performance in mind. - 100% MADE IN USA | Made in America and built to handle American conditions. LDF can be used at various temperature and pressure applications. It is Freeze Protected, Freeze Thaw Stable, Non-Toxic, Non-Flammable, No Chlorine, No Aliphatic Amine, and No Ammonium Compounds. It will not corrode metal surfaces nor damage plastic or rubber. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B008MB1ZGW | | Alarm | Audible | | Best Sellers Rank | #232,145 in Pet Supplies ( See Top 100 in Pet Supplies ) #2,858 in Air Conditioning Line Repair Tools #7,701 in Dog Beds & Furniture | | Brand | LDF | | Customer Reviews | 4.3 out of 5 stars 73 Reviews | | Manufacturer | LDF, Inc. | | Mfr Part Number | HD-LDF-C 16oz | | Model Number | HD-LDF-C 16oz | | Product Style | Modern | | Style | Modern | | UPC | 891781001306 | | Unit Count | 16 Fluid Ounces | ## Product Details - **Brand:** LDF - **Manufacturer:** LDF, Inc. - **UPC:** 891781001306 ## Images ![Heavy-Duty Leak Detection Fluid Concentrate makes one gallon, just add water - Image 1](https://m.media-amazon.com/images/I/71QDypzD1ML.jpg) ![Heavy-Duty Leak Detection Fluid Concentrate makes one gallon, just add water - Image 2](https://m.media-amazon.com/images/I/61Y5gpGlcsL.jpg) ![Heavy-Duty Leak Detection Fluid Concentrate makes one gallon, just add water - Image 3](https://m.media-amazon.com/images/I/61sZBXmj6ZL.jpg) ![Heavy-Duty Leak Detection Fluid Concentrate makes one gallon, just add water - Image 4](https://m.media-amazon.com/images/I/61D0npxjSkL.jpg) ![Heavy-Duty Leak Detection Fluid Concentrate makes one gallon, just add water - Image 5](https://m.media-amazon.com/images/I/619f6Oa6QLL.jpg) ## Questions & Answers **Q: Will I detect tire leaks?** A: Also please note, customers confirm our HD-LDF-C blog where it is stated that large air leaks will create large bubbles and very small air leaks will look like foam or shave cream. One distinct advantage of LDF is that the bubbles that are created in detecting leaks last ten times longer than the competition. That makes your air leak testing easier and more effective. **Q: After mixing 7 to 1 what is the freezing temprature?** A: it will freeze at freezing temperature-32 degrees. diluting 5 to one and add 1/4 bottle of Isopropyl Alcohol (rubbing alcohol) will get you to 0 degrees **Q: Is this oil based ?** A: No. HD-LDF-C is water based. No FOG's(Fat, Oil, Grease) and therefore safe for O2 systems. **Q: Does it leave any sticky residue after it dries?** A: I haven't noticed ANY residue really. You're thinning it down quite a bit with water. It's a lot bubblier than dish soap. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Air leak detector. *by B***9 on October 25, 2025* works better then dish soap, if you work on cars with air suspension you need it. ### ⭐⭐⭐⭐⭐ worked great *by M***C on March 14, 2014* Had a lot of problems with small gas leaks that we could not find. We smelled gas and the gas meter moved when everything was turned off. We tried soap and water and kids bubble making solution with no luck. The day this stuff arrived was the same day the guy from the gas company gave me a speech about how they were not responsible for finding leaks in the house, just up to the gas meter. Anyway he was able to find the leak in a pipe joint. When the guy who had installed that joint came and tightened it, we could tell right away that it was still leaking. The stuff worked like they say on their web site. The bubbles get big and they last pretty long, maybe 2 or 3 minutes. Really easy to see that a leak is happening. After each attempt at fixing the joint, I was able to test it and tell that it was still leaking. It must have saved me countless hours of noticing a faint odor, thinking there might be a leak, but not being sure. Finally when no bubbles showed up we felt really confident that the issue had been dealt with. I was a bit unsure about buying this since there weren't any real reviews. But I was pretty desperate so gave it a try. Highly recommend it to anyone. BTW, it says to dilute about 4 to 1 or 7 to 1 with distilled water. I used filtered water and didn't really measure. I poured some in a jar and added water. It was sort of thick. Applied with a cheap paintbrush. Put on sort of thick. ### ⭐⭐⭐⭐ Not Big Blue! *by S***Y on December 16, 2013* I want to try this one again, because I only made a 1.75 Liter bottle instead of a gallon. It says it makes a gallon, and I'm sure you can make a gallon, but I don't know that it would be very effective. My 1.75 Liters was pretty thin. I wanna try again and see how a gallon does.... I like that it's not blue, and it smells great (still not sure this isn't just a bottle of Dawn or something.....) ## Frequently Bought Together - Heavy-Duty Leak Detection Fluid Concentrate makes one gallon, just add water - Square D by Schneider Electric HOM2175SB Homeline SurgeBreaker, Surge Protection Device, 25kA, 120/240V, 1-Phase, 3-Wire - Square D by Schneider Electric QO2175SB QO SurgeBreaker, Surge Protection Device, 25kA, 120/240V, 1-Phase, 3-Wire --- ## 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.fr/products/15034017-heavy-duty-leak-detection-fluid-concentrate-makes-one-gallon-just](https://www.desertcart.fr/products/15034017-heavy-duty-leak-detection-fluid-concentrate-makes-one-gallon-just) --- *Product available on Desertcart France* *Store origin: FR* *Last updated: 2026-09-10*