--- product_id: 1571161 title: "- ProSeal12 A/C Seal Treatment (4 oz. can)" brand: "red tek" price: "AR$140562" currency: ARS in_stock: true reviews_count: 8 category: "Red Tek" url: https://www.desertcart.com.ar/products/1571161-proseal12-a-c-seal-treatment-4-oz-can store_origin: AR region: Argentina --- # Seals leaks via moisture activation Installs in minutes Reduces refrigerant emissions - ProSeal12 A/C Seal Treatment (4 oz. can) **Brand:** red tek **Price:** AR$140562 **Availability:** ✅ In Stock ## Summary > 🔧 Seal leaks like a pro—fast, safe, and eco-smart! ## Quick Answers - **What is this?** - ProSeal12 A/C Seal Treatment (4 oz. can) by red tek - **How much does it cost?** AR$140562 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/1571161-proseal12-a-c-seal-treatment-4-oz-can) ## Best For - red tek enthusiasts ## Why This Product - Trusted red tek brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Safe & Reliable:** Less toxic than competitors, with no long-term health risks—trusted by top refrigeration pros. - • **Rapid Leak Repair:** Easy, fast installation saves you downtime and hassle. - • **Eco-Friendly Efficiency:** Cuts refrigerant emissions, lowering environmental impact while boosting system performance. - • **Universal Compatibility:** Works seamlessly with R134a, R12, mineral & synthetic lubricants, seals, and hoses. - • **Moisture-Activated Sealant:** Innovative formula chemically seals leaks on metal & rubber parts. ## Overview RED TEK ProSeal12 is a 4 oz. liquid sealant designed for quick, permanent leak repair in A/C and refrigeration systems. Activated by moisture, it seals metal and rubber leaks while eliminating system moisture to improve efficiency and reduce compressor stress. Compatible with common refrigerants and lubricants, it’s a cost-effective, eco-friendly solution trusted by industry leaders. ## Description RED TEK ProSeal is a formulated system designed to seal leaks in both metal and rubber parts of air conditioning and refrigeration systems. ProSeal is chemically activated by moisture at the leak site to form a permanent seal. ProSeal offers several benefits other than self-sealing properties. Moisture is chemically eliminated from the system. Removing moisture reduces compressor head pressure and enhances refrigerant flow which results in lower vent temperatures. RED TEK Pure Zero Patent Pending Technology is a natural, high-efficiency ultra-refined HC gas specifically formulated for use in refrigeration and air conditioning systems. Pure Zero is a Refrigerant Grade Gas made from UL Certified HC gases. Its ultra-refined technology greatly increases efficiency, performance, and reliability. RED TEK PureZero is designed to extend compressor life compared to other lesser refined HC gases that contain impurities not designed for use in air conditioning and refrigeration systems. Some of the largest manufacturers of refrigeration systems have made the switch to RED TEK PUREZERO! IMPORTANT INFORMATION: This product cannot be returned to desertcart.com because it uses flammable liquids and gases, is classified as a hazardous material, or meets other criteria. This is a non refundable, non returnable product. Review: Worksa as intended - Worked great on 30 year old car, seal the leak completely Review: Highly recommend - Excellent item, works exactly as described. ## Features - Operation: Easy to use. Installs in minutes. Remains in system as a liquid lubricant ready to seal any future leaks. - Lower Cost: Less expensive than replacing leaking evaporators, condensers, compressors, and metal lines. - Compatibility: Compatible with most common refrigeration materials and lubricants including R134a, R12, metal components, mineral and synthetic(Ester and PAG) lubricants, seals, gaskets, hoses, compressors, and o-rings. - Environment: Helps environment by reducing refrigerant emissions. - Safety: Safe and easy to use. Less toxic than other seal treatments that contain poisonous methanol. No long term health risks have been attributed to RED TEK ProSeal. - IMPORTANT INFORMATION: This product cannot be returned because it uses flammable liquids and gases, is classified as a hazardous material, or meets other criteria. This is a non refundable, non returnable product. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00DJDYS58 | | Best Sellers Rank | #135,262 in Automotive ( See Top 100 in Automotive ) #335 in Automotive Sealants #3,172 in Oils & Fluids | | Brand Name | RED TEK | | Container Type | Can | | Customer Reviews | 4.2 4.2 out of 5 stars (179) | | Item Form | Liquid | | Item Weight | 6.72 ounces | | Liquid Volume | 2 Fluid Ounces | | Manufacturer | Thermofluid Technologies | | Material | Metal | | Number of Items | 1 | | Part Number | 402 | | Recommended Uses For Product | Lubricant | | Specific Uses For Product | Repairing leaks, maintaining air conditioning and refrigeration system efficiency | | UPC | 819331004027 | | Unit Count | 4 Ounce | | Upper Temperature Rating | 239 Degrees Fahrenheit | ## Product Details - **Brand:** RED TEK - **Item Weight:** 6.72 ounces - **Liquid Volume:** 2 Fluid Ounces - **Material:** Metal - **Package Information:** Can ## Images ![- ProSeal12 A/C Seal Treatment (4 oz. can) - Image 1](https://m.media-amazon.com/images/I/71V7ELe7kHL.jpg) ![- ProSeal12 A/C Seal Treatment (4 oz. can) - Image 2](https://m.media-amazon.com/images/I/71dvTqoG-tL.jpg) ![- ProSeal12 A/C Seal Treatment (4 oz. can) - Image 3](https://m.media-amazon.com/images/I/8128SP-d+mL.jpg) ![- ProSeal12 A/C Seal Treatment (4 oz. can) - Image 4](https://m.media-amazon.com/images/I/51Z+gMv7qoL.jpg) ## Questions & Answers **Q: did i purchased the wrong can? is this compatible with r22? i just found red tek proseal22 on another page, only after i bought this...:/** A: The ProSeal12 is for R12 and R134a systems. You need ProSeal22 for R22 systems **Q: I need 2 cans of R22 refrigerate** A: I am sorry but we do not carry an R22 substitute. **Q: Is this works for R1234YF system** A: Yes, you will need a 134 to 1234yf adapter as this can is threaded for 134a. But it is compatible with your 1234yf system. **Q: Does this work with r1234yf ?** A: Yes ## Customer Reviews ### ⭐⭐⭐⭐⭐ Worksa as intended *by L***Y on December 9, 2025* Worked great on 30 year old car, seal the leak completely ### ⭐⭐⭐⭐⭐ Highly recommend *by M***L on November 25, 2025* Excellent item, works exactly as described. ### ⭐⭐⭐⭐⭐ Worked wonders on my 21 year old truck *by E***R on July 12, 2018* Apparently had a small leak in the evaporator behind the dash. Hundreds of $$ to replace. Put one can of Proseal into the system 2 months ago and it has been putting out very cold air just as it did when new. Did I mention this is a 21 year old Dodge Dakota truck. Excellent product that does just what it promises. How great to find a product that actually works as promised. ## Frequently Bought Together - RED TEK ProSeal12 A/C Seal Treatment (4 oz. can) - Generic Arctic Air for R12, 3 cans and a Brass Charging Gauge - RED TEK LeakStop12 A/C Seal Treatment (4 oz. can) --- ## 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.com.ar/products/1571161-proseal12-a-c-seal-treatment-4-oz-can](https://www.desertcart.com.ar/products/1571161-proseal12-a-c-seal-treatment-4-oz-can) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-05-12*