How long does this last or how many times can it be exposed to high heat?

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.

Does this leave residue or react with metal?

No. Just clean off any residual COMPLETELY>

why is this is 20 dollars on ebay?

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.

Is it conductive? can it be used to shield parts on a pcb while using a heat gun?

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.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Refrigeration Technologies RT400P Viper Wetrag Heat Blocking Putty Jar (1), 12 oz.

Refrigeration Technologies RT400P Viper Wetrag Heat Blocking Putty Jar (1), 12 oz.

Product ID: 46259170

Details

Brand
Refrigeration
Color
Gray
Item Form
Putty
Special Feature
Heat Resistant
Specific Uses For Product
Repair Welding

💧No mess, re-moistens easily

🔥Blocks direct & conductive heat

♻️Reusable up to 40 times

RM271

Duties & taxes included

In stock

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Description

🔥 Mold. Protect. Repeat. The pro’s secret to flawless heat defense.

SAFE NON TOXIC - Work confidently with a formula that’s safe for you and the environment
MESS FREE APPLICATION - No sticky residue or cleanup hassles, keeping your workspace pristine
EFFORTLESS REUSABILITY - Use up to 40 times with simple re-moistening—sustainable and cost-effective
ULTIMATE HEAT SHIELDING - Protects valves & sensitive surfaces from extreme heat damage during brazing and welding
VERSATILE TORCH COMPATIBILITY - Perfect for MAP/Pro, oxy/acetylene, MIG, TIG, arc, and propane torches

The Refrigeration Technologies RT400P Viper Wetrag Heat Blocking Putty is a high-performance, reusable putty designed to shield sensitive components from direct and conductive heat during welding, brazing, or soldering. Compatible with multiple torch types, it offers up to 40 uses with a no-mess, easy re-moistening formula, ensuring professional-grade protection and efficiency on every job.

Specifications

ASIN	B017T23T18
Brand Name	Refrigeration Technologies
Color	Gray
Compatible Material	Ceramic, Metal, Plastic
Container Type	Jar
Customer Reviews	4.6 4.6 out of 5 stars (642)
Global Trade Identification Number	00017857400082
Item Form	Putty
Item Package Quantity	1
Item Weight	1.6 ounces
Manufacturer	Refrigeration Technologies
Model	RT400P
Number of Pieces	1
Other Special Features of the Product	Heat Resistant
Part Number	REFRIGERATION TECHNOLOGOES - RT400P
Specific Uses For Product	Repair, Welding
UPC	696335182315 017857400082
Unit Count	12 Ounce
Viscosity Level	High
Volume	12 fluid ounces
Water Resistance Level	Water Resistant

Common Questions

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

1 week ago

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RM271

Duties & taxes included

In stock

Sold byAmazon MalaysiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Malaysia.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

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TrustScore 4.5 | 7,300+ reviews

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