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

478 Lei

Duties & taxes included

In stock

Sold byAmazon RomaniaDelivered 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 Romania.

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Description

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

COMPACT CONVENIENT - Comes in a handy 12 oz jar—easy to mold, apply, and store for on-the-go professionals.
MESS FREE APPLICATION - No sticky residue or cleanup hassles with its clean, water-activated formula.
EFFORTLESS REUSABILITY - Use up to 40 times—just re-moisten and go, saving time and money on replacements.
ULTIMATE HEAT SHIELDING - Protects sensitive surfaces and valves from extreme heat damage during welding or brazing.
VERSATILE TORCH COMPATIBILITY - Perfectly compatible with MAP/PRO, oxy/acetylene, MIG, TIG, arc, and propane torches.

The Refrigeration Technologies RT400P Viper Wet Rag Heat Blocking Putty is a high-viscosity, reusable 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 a wide range of torches, making it an essential tool for professionals seeking reliable, efficient heat protection.

Specifications

Asin	B017T23T18
Best Sellers Rank	#10,164 in Automotive (See Top 100 in Automotive) #131 in Automotive Cleaners
Brand Name	Refrigeration Technologies
Color	Gray
Compatible Material	Metal
Container Type	Jar
Global Trade Identification Number	00017857400082
Item Form	Putty
Item Package Quantity	1
Item Weight	0.1 Pounds
Manufacturer	Refrigeration Technologies
Material Type	OTHER
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
Viscosity Level	High
Volume	12 Fluid Ounces
Water Resistance Level	Water Resistant

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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

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days 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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478 Lei

Duties & taxes included

In stock

Sold byAmazon RomaniaDelivered 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 Romania.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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