Permatex81160 High-Temp Red RTV Silicone Gasket, 3 oz
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Permatex81160 High-Temp Red RTV Silicone Gasket, 3 oz

4.7/5
Product ID: 1707785
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Details

  • Brand
    Permatex
  • Material
    Silicone
  • Compatible Material
    Aluminum Metal
  • Item Form
    Gel
  • Color
    Red
💧Water resistant for lasting durability
🔥Withstands up to 650°F
🛠️High-viscosity gel for heavy-duty sealing

Description

🔥 Seal the deal with heat-proof confidence!

  • EXTREME HEAT DEFENDER - Operates flawlessly from -65°F to 650°F, perfect for high-temp environments.
  • HEAVY DUTY GEL FORMULA - High-viscosity silicone ensures a tough, long-lasting seal under pressure.
  • VERSATILE COMPATIBILITY - Seals aluminum, plastic, and metal surfaces with unmatched reliability.
  • FORMED IN PLACE PERFECTION - Creates custom gaskets that resist cracking, shrinking, and migration.
  • WATER RESISTANT RELIABILITY - Keeps your seals intact even in wet or humid conditions.

Permatex 81160 High-Temp Red RTV Silicone Gasket is a premium 3 oz gel designed for extreme temperature applications (-65°F to 650°F). It forms durable, custom-fit gaskets that resist cracking and shrinking, compatible with aluminum, plastic, and metal surfaces. Water resistant and heavy-duty, it ensures reliable sealing for professional-grade repairs and maintenance.

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Specifications

BrandPermatex
MaterialSilicone
Compatible MaterialAluminum, Plastic, Metal
Item FormGel
ColorRed
Item Package Quantity1
Package InformationTube or small jar
Item Volume3 Fluid Ounces
ViscosityHigh
Full Cure Time24 Hours
Water Resistance LevelWater Resistant
Unit Count3.0 Ounce
UPC686226811608
Global Trade Identification Number00686226811608
ManufacturerPermatex
ModelPermatex 81160
Item Weight3.21 ounces
Product Dimensions1.25 x 3.81 x 8 inches
Item model number81160
Is Discontinued By ManufacturerNo
ExteriorPainted
Manufacturer Part Number81160
OEM Part Number81160
National Stock Number8030-01-212-9622

Have a Question? See What Others Asked

can it be used on shingles
is this food grade? or can i use this on ovens and BBQ grills? it will not directly touch the food but there is a chance that it will. thanks
Is this compatible with differential fluid?
Can I use red etc for interior application on a tin ceiling with exstream heat from the Fl sun ?

Reviews

4.7

All from verified purchases

M**W

Great sealant

Flawless victory. No really, used the product to make a needed RTV seal for a furnace blower install and did the job perfectly. This one sets immediately so be quick on the install.

H**.

Excellant

Works well. Can withstand 15 psi for 20 minutes under heat for many uses. I never had to repair it after many uses. Dries well. It can be a little messy but I use gloves. For what I need to seal you do not need a lot to get job done.

C**.

Admittedly Use this for YoYo Response Grooves

I'd like to start by saying that I use this specifically to fill the grooves for response systems in YoYo's, but it's fantastic for this. It's a little thicker than the clear flowable silicone, but that makes it a little easier to work with as well admittedly. You just have to make sure that you use an old card or something when you are done to smooth out the top layer, then let it set and you are good to go. Good response and grip to the string, and lasts much longer than the flowable, with minimal extra effort. All in all, works great, would recommend!

F**D

Good product, just be sure to wipe the treads at the top before you put the lid back on.

Product does what it is supposed to. My only complaint, is that the lid broke... This is probably my own fault being that I was messy and replaced the plastic white lid to the bottle without wiping down the treads. Because the treads were covered with the silicone and I screwed the lid on while it was covered, the lid melded to the metal. The next time I went to take the plastic lid off it cracked because it has sealed so tightly to the bottle.... I guess it did what it was supposed to do, but I was bummed because I was now lid-less. I had to toss the cap. I did find somewhat of an easy solution though to being lidless... I just squeeze out an extra blob and use it as a makeshift lid. When it dried it sealed the the exit hole nicely without ruining the rest of what is in the bottle. I then just reuse the blob each time, resealing it to the bottle... My advice to you though, save yourself the trouble and wipe down the metal treads before screwing the plastic cap back on. :-)

R**M

Great

Works really good put it directly where the exhaust manifold mounts to the engine sealed up the gap checked it right after it had been running it’s really high temperature good stuff

S**F

Pellet stove sealant

Worked very well for sealing up connections on our interior pipes for our pellet stove

P**W

Performs as Advertised

First thing to be aware of: this silicone is a bit thicker than colorless RTV silicone. I'd describe its consistency as being more paste-like than gel-like. It's also nearly odorless compared to general-purpose colorless RTV silicones.It does hold up well at high temperatures. I've used and abused this stuff at temperatures that I know were in excess of its rated continuous-duty temperature, and it held up regardless.Although my application was not automotive, this product would definitely be suitable for automotive applications downstream of the exhaust headers. If you have an installed turbo, it could be used downstream of the turbo...perhaps even at the turbo outlet.

T**O

ABS Bleed works

I bought this specifically to bleed the abs unit on my 2005 Chevrolet Silverado of which the 99-05 model years are generally considered the same (or GMC Sierra). My brake lines rusted through from the master cylinder to the abs unit. Upon repairing the lines I bled the brakes til' my face turned blue to no avail. After googling and finding the abs unit needs to be bled I went directly to smile.amazon.com to find an affordable tool that would do the job and save money and time from taking it to a shop. The menus were ok to go through and I almost didn't think this had abs bleed for a moment but then fiddled a second and got to the special function. I am happy to report that this works as indicated for this particular function. As I have not attempted any other vehicle I cannot report either way on another make and model. I did not try any other functions at this time but will add to this review as I use the tool more. A shop would easily charge what this cost just to bleed the abs/brakes alone without the repair. And unless you wanted to risk driving on faulty brakes the tow would cost what this tool cost as well. I recommend giving it a go!

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TrustScore 4.5 | 7,300+ reviews

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Permatex81160 High Temp Red Rtv Silicone Gasket 3 Oz | Desertcart Tanzania