--- product_id: 36117644 title: "Synthetic U/V Leak Detection Dye, 1 oz, 1 Application" brand: "tsi supercool" price: "€ 12.33" currency: EUR in_stock: true reviews_count: 13 category: "Tsi Supercool" url: https://www.desertcart.pt/products/36117644-synthetic-u-v-leak-detection-dye-1-oz-1-application store_origin: PT region: Portugal --- # Detectable with any U/V light Quickly finds cooling system leaks 1 oz per vehicle - precise dosing Synthetic U/V Leak Detection Dye, 1 oz, 1 Application **Brand:** tsi supercool **Price:** € 12.33 **Availability:** ✅ In Stock ## Summary > 🔍 Illuminate your ride’s secrets with precision and speed! ## Quick Answers - **What is this?** Synthetic U/V Leak Detection Dye, 1 oz, 1 Application by tsi supercool - **How much does it cost?** € 12.33 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/36117644-synthetic-u-v-leak-detection-dye-1-oz-1-application) ## Best For - tsi supercool enthusiasts ## Why This Product - Trusted tsi supercool brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Engineered for pros:** TSI Supercool’s highest standards guarantee reliable, professional-grade results. - • **Save time and money:** Cut diagnostic hours and costly repairs by identifying leaks fast. - • **Pinpoint leaks in a flash:** Supercharged UV formula reveals hidden cooling system leaks instantly. - • **Universal UV compatibility:** Works seamlessly with any UV light for effortless leak detection. - • **Precision dosing, zero waste:** 1-ounce single-use vial ensures exact application every time. ## Overview TSI Supercool Synthetic U/V Leak Detection Dye is a 1-ounce, single-application liquid designed to quickly and accurately detect cooling system leaks. Compatible with any UV light, this professional-grade synthetic dye meets TSI Supercool’s highest standards, making leak detection faster, easier, and more precise for automotive maintenance. ## Description TSI Supercool 16532 Radiator Dye - 1-Ounce - Single Application is a Synthetic U/V Leak Detection Dye that is engineered to quickly find cooling system leaks. It is detectable with any U/V light. It is conveniently designed for easy measuring, use 1-Ounce per vehicle. Review: Great results - This stuff worked great, one ounce was more than enough. For those who said the product didn’t fluoresce in the bottle, I believe it needs to mix with the coolant/water to really light up. Remember this is to be used with a black light/UV light to see the leak. While it was bright enough to see some areas with no artificial UV light, it is ideally used with a UV light. Super bright for me, showed the leak clearly and was in an area that I never would have thought of or found without the leak detector. Review: Works well. - Works great. I would rather not use it because is is colorful enough even without UV that I think of it as messy, and drain and flush after finding and fixing leaks, but maybe I add too much, or maybe I should just not worry about that and rinse everything when done. It is quite water soluble and rinses clean off. My son calls it "predator blood", looks the same. Definitely helps finding obscure leaks on messy engines. Be sure to put it in the radiator. If put into an overflow tank, especially a non pressurized type, it may require a few heat cycles to transfer enough to where it matters to be useful. Obviously, won't help with a head gasket leak to the combustion chamber, unless you look with a borescope, maybe after letting it sit pressurized a while. Head gasket leak to crankcase (oil contamination), you shouldn't need this stuff for. The milkshake is perfectly fine for that. ## Features - Includes Synthetic U/V Leak Detection Dye - Offers to Quickly Find Cooling System Leaks - Features a Formula that is Detectable with any U/V Light - Use 1-Ounce Per Vehicle - Engineered to Supercool' s Highest Standards ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B008PKV0TM | | Best Sellers Rank | #4,998 in Automotive ( See Top 100 in Automotive ) #8 in Air Conditioning Line Repair Tools | | Brand | TSI Supercool | | Brand Name | TSI Supercool | | Color | Red | | Compatible Material | Metal | | Customer Reviews | 4.5 out of 5 stars 506 Reviews | | Global Trade Identification Number | 00672264016532 | | Included Components | TSI Supercool 16532 Radiator Dye, 1 oz (Single Application) | | Item Form | Liquid | | Item Type Name | TSI Supercool 16532 Radiator Dye, 1 oz (Single Application) | | Item Weight | 0.04 Kilograms | | Manufacturer | TSI Supercool | | Manufacturer Part Number | 16532 | | Model Number | 16532 | | Number of Items | 1 | | UPC | 672264016532 | | Warranty Description | manufacturer warranty | ## Product Details - **Brand:** TSI Supercool - **Color:** Red - **Compatible Material:** Metal - **Item Form:** Liquid - **Number of Items:** 1 ## Images ![Synthetic U/V Leak Detection Dye, 1 oz, 1 Application - Image 1](https://m.media-amazon.com/images/I/71Y22bu38iL.jpg) ![Synthetic U/V Leak Detection Dye, 1 oz, 1 Application - Image 2](https://m.media-amazon.com/images/I/71tdIlRg-aL.jpg) ![Synthetic U/V Leak Detection Dye, 1 oz, 1 Application - Image 3](https://m.media-amazon.com/images/I/71rRbhkrUaL.jpg) ![Synthetic U/V Leak Detection Dye, 1 oz, 1 Application - Image 4](https://m.media-amazon.com/images/I/715BGI7XLyL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great results *by T***I on January 15, 2026* This stuff worked great, one ounce was more than enough. For those who said the product didn’t fluoresce in the bottle, I believe it needs to mix with the coolant/water to really light up. Remember this is to be used with a black light/UV light to see the leak. While it was bright enough to see some areas with no artificial UV light, it is ideally used with a UV light. Super bright for me, showed the leak clearly and was in an area that I never would have thought of or found without the leak detector. ### ⭐⭐⭐⭐⭐ Works well. *by J***. on April 17, 2026* Works great. I would rather not use it because is is colorful enough even without UV that I think of it as messy, and drain and flush after finding and fixing leaks, but maybe I add too much, or maybe I should just not worry about that and rinse everything when done. It is quite water soluble and rinses clean off. My son calls it "predator blood", looks the same. Definitely helps finding obscure leaks on messy engines. Be sure to put it in the radiator. If put into an overflow tank, especially a non pressurized type, it may require a few heat cycles to transfer enough to where it matters to be useful. Obviously, won't help with a head gasket leak to the combustion chamber, unless you look with a borescope, maybe after letting it sit pressurized a while. Head gasket leak to crankcase (oil contamination), you shouldn't need this stuff for. The milkshake is perfectly fine for that. ### ⭐⭐⭐⭐⭐ Worked great, fast leak detection *by B***K on February 1, 2026* I had a coolant leak. My mechanic said that they couldn't determine where the leak was because it was very slow. After a while, the rate of leaking increased. Rather than using a leak-seal product, I wanted a real fix, so I added this dye and drove around. My mechanic said that the dye made it very easy to see where the leak was. This saved a considerable amount of diagnostic time... and saved me a considerable money. It was really easy to use. The only issue was that my mechanic said that the dye had made a mess on the bottom side of my truck. ## Frequently Bought Together - TSI Supercool Synthetic U/V Leak Detection Dye, 1 oz, 1 Application - REALHUNLEE Air Conditioner UV Dye Leak Detector, Pro Auto Oil AC UV Dye Leak Test Detection Tool Kit 68 LED A/C UV Flashlight Detector with Protective Glasses - InterDynamics Certified Auto Pro Oil and Fuel System UV Dye Leak Detection for Cars & Trucks & More, 1 Oz, 374CS, Universal --- ## 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.pt/products/36117644-synthetic-u-v-leak-detection-dye-1-oz-1-application](https://www.desertcart.pt/products/36117644-synthetic-u-v-leak-detection-dye-1-oz-1-application) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-05-18*