---
product_id: 62030877
title: "Refrigeration Technologies RT400P Viper Wetrag Heat Blocking Putty Jar (1), 12 oz."
brand: "refrigeration technologies"
price: "720 Lei"
currency: RON
in_stock: true
url: https://www.desertcart.ro/products/62030877-refrigeration-technologies-rt400p-viper-wetrag-heat-blocking-putty-jar-1
store_origin: RO
region: Romania
---

# Blocks direct & conductive heat Reusable & mess-free formula Protects surfaces & valves Refrigeration Technologies RT400P Viper Wetrag Heat Blocking Putty Jar (1), 12 oz.

**Brand:** refrigeration technologies
**Price:** 720 Lei
**Availability:** ✅ In Stock

## Summary

> 🛠️ Stay cool under pressure with the ultimate heat-blocking putty!

## Quick Answers

- **What is this?** Refrigeration Technologies RT400P Viper Wetrag Heat Blocking Putty Jar (1), 12 oz. by refrigeration technologies
- **How much does it cost?** 720 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/62030877-refrigeration-technologies-rt400p-viper-wetrag-heat-blocking-putty-jar-1)

## 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 Guardian:** Protects delicate surfaces and valves during high-heat repair or welding tasks, ensuring longevity.
- • **Heat Shield Mastery:** Effectively blocks both direct and conductive heat transfer to safeguard your critical components.
- • **Non-Toxic Confidence:** Safe to use with a non-toxic formula, giving you peace of mind on every job site.
- • **Eco-Smart Reusability:** Reusable putty that keeps your workspace clean with a no-mess formula—sustainability meets efficiency.
- • **Precision Application:** Compact 12 oz jar designed for easy handling and precise placement exactly where you need it.

## Overview

The RT400P Viper Wetrag Heat Blocking Putty is a 12 oz reusable, non-toxic putty designed to protect surfaces and valves by blocking direct and conductive heat transfer. Its no-mess formula ensures clean application during repair and welding tasks, making it an essential tool for professionals seeking reliable thermal protection.

## Description

Viper wet rag heat blocking putty is a reusable heat blocking putty that keeps piping and sensitive components cooler than a traditional wet rag during brazing, soldering or welding. Simply mold putty in front of area that needs to be protected from heat. Braze, solder or weld. Let heated areas cool. Remove putty and place back into jar. Re moisten with a few drops of water if putty becomes dry. Good for up to 40 uses. Features: Reusable protects surfaces, valves and other sensitive parts from heat damage blocks direct and conductive heat transfer no mess formula use with map/pro, oxy/acetylene, mig, tig, arc and propane torches non toxic.

## Features

- It is reusable
- Protects surfaces, valves
- Blocks direct and conductive heat transfer
- No mess formula

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Refrigeration Technologies |
| Part number | REFRIGERATION TECHNOLOGOES - RT400P |
| Item Weight | 45.4 g |
| Product Dimensions | 0.25 x 0.25 x 0.25 cm; 45.36 g |
| Item model number | RT400P |
| Colour | Gray |
| Material | OTHER |
| Item Package Quantity | 1 |
| Number of Pieces | 1 |
| Special Features | Non Toxic |
| Specific uses | Repair, Welding |
| Batteries included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** Refrigeration Technologies
- **Specific uses for product:** Repair, Welding
- **Material:** OTHER
- **Item form:** Putty
- **Special feature:** Non Toxic

## Images

![Refrigeration Technologies RT400P Viper Wetrag Heat Blocking Putty Jar (1), 12 oz. - Image 1](https://m.media-amazon.com/images/I/61SVbN76qCL.jpg)

## Available Options

This product comes in different **Material Type** options.

## 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.
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**Shop now:** [https://www.desertcart.ro/products/62030877-refrigeration-technologies-rt400p-viper-wetrag-heat-blocking-putty-jar-1](https://www.desertcart.ro/products/62030877-refrigeration-technologies-rt400p-viper-wetrag-heat-blocking-putty-jar-1)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-03-02*