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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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, water-activated formula

🔥Blocks direct & conductive heat

♻️Reusable up to 40 times

₱4883

Duties & taxes included

In stock

Sold byAmazon PhilippinesDelivered 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 Philippines.

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Description

🔥 Mold. Protect. Repeat. The pro’s secret weapon against heat damage.

TRUSTED BY PROS - 4.6-star rating from 640+ users who swear by its performance
REUSABLE EFFICIENCY - Use up to 40 times—sustainable and cost-effective
MESS FREE APPLICATION - No sticky residue, re-moisten with just a few drops of water
ULTIMATE HEAT SHIELDING - Protects valves & sensitive parts from extreme heat damage
VERSATILE TORCH COMPATIBILITY - Perfect for MAP/Pro, oxy/acetylene, MIG, TIG, arc & propane welding

The Refrigeration Technologies RT400P Viper Wet Rag Heat Blocking Putty is a high-viscosity, reusable putty designed to shield piping and sensitive components from direct and conductive heat during brazing, soldering, or welding. Its no-mess, water-activated formula ensures easy application and removal, compatible with multiple torch types, and supports up to 40 uses per jar, making it an essential tool for professionals seeking reliable heat protection.

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 (643)
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

Are the products genuine and authentic?+

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.

How long does delivery take and is it reliable?+

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.

What is Desertcart? Is it safe to order from?+

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.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

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₱4883

Duties & taxes included

In stock

Sold byAmazon PhilippinesDelivered 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 Philippines.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

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