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

Product ID: 273707167

Details

Brand
Refrigeration
Item form
Putty
Material
OTHER
Special features
Non Toxic
Specific uses for product
Repair Welding

💧No mess, water-activated formula

🔥Blocks direct & conductive heat

♻️Reusable up to 40 times

₨36638

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In stock

Sold byAmazon Sri LankaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔥 Mold. Protect. Repeat. Stay cool under fire.

REUSABLE EFFICIENCY - Use up to 40 times—just re-moisten and go, saving time and money
COMPACT CONVENIENT - 12 oz jar fits easily in your toolkit for on-the-go heat protection
MESS FREE APPLICATION - No sticky residue or cleanup hassles with its clean, water-activated formula
ULTIMATE HEAT SHIELDING - Protects sensitive surfaces and valves from extreme heat 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 reusable, high-viscosity putty designed to shield metal surfaces and valves from direct and conductive heat during welding, brazing, or soldering. Its no-mess, water-activated formula allows up to 40 uses per 12 oz jar, compatible with various torch types, making it an essential, efficient heat protection tool for professionals.

Specifications

ASIN	B017T23T18
Best Sellers Rank	#37,298 in Automotive ( See Top 100 in Automotive ) #366 in Automotive Cleaners
Brand	Refrigeration Technologies
Brand Name	Refrigeration Technologies
Color	Gray
Colour	Gray
Compatible Material	Metal
Container Type	Jar
Global Trade Identification Number	00017857400082
Item Form	Putty
Item Package Quantity	1
Item Weight	45 g
Item form	Putty
Manufacturer	Refrigeration Technologies
Material	OTHER
Material Type	OTHER
Model	RT400P
Number of Pieces	1
Other Special Features of the Product	Heat Resistant
Part Number	REFRIGERATION TECHNOLOGOES - RT400P
Special features	Heat Resistant
Specific Uses For Product	Repair, Welding
Specific uses for product	Repair, Welding
UPC	696335182315 017857400082
Viscosity Level	High
Volume	12 Fluid Ounces
Water Resistance Level	Water Resistant

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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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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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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

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Great experience from order to delivery. Highly recommended!

1 week ago

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Fantastic and great service. Shipping was faster than expected.

1 week ago

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₨36638

Duties & taxes included

In stock

Sold byAmazon Sri LankaDelivered 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 Sri Lanka.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

View all Trustpilot reviews