--- product_id: 733772926 title: "Refrigeration Technologies RT400P Viper WetRag Heat Blocking Putty 350ml Jar" brand: "refrigeration technologies" price: "KD 22.46" currency: KWD in_stock: true category: "Refrigeration Technologies" url: https://www.desertcart.com.kw/products/733772926-refrigeration-technologies-rt400p-viper-wetrag-heat-blocking-putty-350ml-jar store_origin: KW region: Kuwait --- # Blocks heat transfer instantly Reusable up to 40 times Protects sensitive valves & surfaces Refrigeration Technologies RT400P Viper WetRag Heat Blocking Putty 350ml Jar **Brand:** refrigeration technologies **Price:** KD 22.46 **Availability:** ✅ In Stock ## Summary > 🛠️ Stay cool under fire—protect like a pro with RT400P Viper! ## Quick Answers - **What is this?** Refrigeration Technologies RT400P Viper WetRag Heat Blocking Putty 350ml Jar by refrigeration technologies - **How much does it cost?** KD 22.46 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/733772926-refrigeration-technologies-rt400p-viper-wetrag-heat-blocking-putty-350ml-jar) ## Best For - refrigeration technologies enthusiasts ## Why This Product - Trusted refrigeration technologies brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Surface Savior:** Safeguards valves and delicate components from heat damage - • **Heat Shield Mastery:** Direct conduction heat block for flawless brazing and welding - • **Mess-Free Precision:** No drips, no residue—just clean, effective protection - • **Eco-Smart Reusability:** Use again and again—up to 40 applications per jar - • **Versatile Torch Compatibility:** Perfect for MAP/Pro, oxy/acetylene, MIG, TIG, arc, and propane torches ## Overview The RT400P Viper WetRag Heat Blocking Putty is a reusable, heat-resistant putty designed to protect piping, valves, and sensitive components during brazing, soldering, or welding. It blocks direct heat conduction without mess, supports multiple torch types, and can be reactivated with water for up to 40 uses, making it an essential tool for professionals seeking reliable thermal protection. ## Description VIPER Wet Rag Thermal Block Heat Putty is a reusable putty that wet plumbing and sensitive components and brazing, soldering, or welding in a cooler rag than conventional rag Mold Putty is the front area and needs to be protected from heat. Works with brazing, soldering or welding These heated heats look cool. Leave the putty removed It's like a jar. Dry RE moisture in a Putty that can be a few drops of water. 40 easy instructions on how to use them until they are suitable. Features. Reusable surface protects valves and other sensitive parts from heat damage, direct heat conduction and transfer mess-free use with Map/Pro, oxy/Acetylene, Mig, TIG, Arc, Propane Torch Non-Toxic ## Features - Reusable - Protects surfaces, valves - Direct heat transfer and transfer block - No Mess ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B017T23T18 | | Amazon Bestseller | #264,161 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #5,527 in Pipe Fittings | | Brand Name | Refrigeration Technologies | | Customer Reviews | 3.0 3.0 out of 5 stars (1) | | Global Trade Identification Number | 00017857400082 | | Item Form | Putty | | Item Package Quantity | 1 | | Item Weight | 0.1 Pounds | | Manufacturer | Refrigeration Technologies | | Model | RT400P | | Number of Pieces | 1 | | Other Special Features of the Product | Heat Resistant | | Part Number | REFRIGERATION TECHNOLOGOES - RT400P | | UPC | 696335182315 017857400082 | | Unit Count | 12.0 Ounce | | Volume | 12 Fluid Ounces | ## Product Details - **Brand:** Refrigeration Technologies - **Item Form:** Putty - **Item Package Quantity:** 1 - **Item Volume:** 12 Fluid Ounces - **Special Feature:** Heat Resistant ## Images ![Refrigeration Technologies RT400P Viper WetRag Heat Blocking Putty 350ml Jar - Image 1](https://m.media-amazon.com/images/I/61SVbN76qCL.jpg) ## Questions & Answers **Q: How long does this last or how many times can it be exposed to high heat?** A: As long as you put back in the jar and seal it. it lasts a very long time its been a year and it still works. braze all the time never had a problem its been exposed to high heat for at least 15mins still kept protected area intact. **Q: Does this leave residue or react with metal?** A: No. Just clean off any residual COMPLETELY> **Q: why is this is 20 dollars on ebay?** A: Can't answer that, but the ease of Amazon returns is worth purchasing some products at a higher price from them. I used this product to solder fittings near a TXV valve and it worked great. **Q: Is it conductive? can it be used to shield parts on a pcb while using a heat gun?** A: This is a paste type product. It leaves residue. Idk if its appropriate for a pcb. We use it to protect vulnerable parts when arc welding or torch cutting. It should be capable of protecting from a heat gun. ## Frequently Bought Together - Refrigeration Technologies RT400P Viper Wetrag Heat Blocking Putty Jar (1), 12 oz. - Matace 2 Pack 12x14 Inch Fireproof Welding Blanket & Pad, 5mm Thickened Fire Resistant Carbon Felt Cloth, Flame Retardant Fabric for Stove Wick, Heat Shield for Soldering, Firepit, Smoker, Black - FLASLD Welding Blanket & Heat Shield Mat for Soldering Copper Pipe, 12''x12'' Flame Protector Pad Plumbing Hole Propane Torch (1 Pack) --- ## 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.kw/products/733772926-refrigeration-technologies-rt400p-viper-wetrag-heat-blocking-putty-350ml-jar](https://www.desertcart.com.kw/products/733772926-refrigeration-technologies-rt400p-viper-wetrag-heat-blocking-putty-350ml-jar) --- *Product available on Desertcart Kuwait* *Store origin: KW* *Last updated: 2026-05-23*