Refrigeration Technologies Viper WetRag Reusable Heat Blocking Putty
Ditch the dripping, messy shop towels and upgrade to the ultimate thermal barrier. Viper WetRag is a reusable heat-blocking putty engineered to keep piping, sensitive valves, and delicate system components safely cool during high-temperature brazing, soldering, or welding. Made from advanced ceramic materials used in the thermal heat shields of aerospace shuttles, it blocks direct and conductive heat transfer up to 2000°F (1093°C).
Simply mold the putty around the section you want to isolate, perform your weld or braze, let it cool, and pack it right back into the jar. It is a zero-mess, high-efficiency essential for every HVAC technician, plumber, and metal fabricator.
Key Features & Benefits
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Aerospace-Grade Thermal Shielding: Formulated from the same heat-defending technology used in space exploration to isolate and block conductive heat transfer.
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Reusable Up to 40 Times: Built for long-term cost savings. If the putty begins to dry out, simply revive it with a few drops of fresh water to restore its original consistency.
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Smart Wear-Indicator Dye: Features a built-in color-tracking indicator. The putty changes color as it breaks down over dozens of uses, letting you know exactly when it is time to grab a fresh jar.
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Universal Torch Compatibility: Safe and highly effective for use with MAP-Pro, Oxy/Acetylene, MIG, TIG, Arc, and standard Propane setups.
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Non-Toxic & Safe Formula: Completely free of toxic silica or harmful off-gassing agents, ensuring absolute safety when exposed to open, direct flames.
Applications & Use Cases
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HVAC/R Maintenance: Protects sensitive TXV valves, reversing valves, ball valves, and moisture indicators while brazing service lines.
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Plumbing Installation: Isolates copper pipes near finished drywall, wood framing, or vinyl backing to eliminate fire hazards.
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Automotive Repair: Shields nearby wiring harnesses, plastic clips, and painted surfaces during body welding or exhaust work.
Simple 4-Step Instructions
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Mold: Press and pack a generous layer of Viper WetRag putty onto the pipe or component immediately preceding the zone being heated.
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Torched: Solder, braze, or weld your joint normally—the compound holds its shape flawlessly.
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Cool: Allow the heated metal surfaces to cool naturally down to a safe handling temperature.
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Pack: Peel the putty away and drop it back into the storage tub. Add a few drops of water if it requires re-moistening.
Technical Specifications
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Part Number: RT400P
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Container Size: 12 oz. (346g) jar
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Maximum Temperature Rating: Exceeds 2000°F (1100°C)
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Chemical Base: High-temperature non-toxic ceramic putty
- Consistency: Medium-to-high viscosity, non-sagging moldable paste
