Hi-Temp Red & Blue 100% RTV Silicone Sealant & Gasket-Maker

5 reviews Write a Review
Price $8.49



Hi-Temp Red 100% RTV Sealant Acetoxy Curing 10.1oz makes a great gasket sealant and for high temp projects like pipes, ducts/vents, gaskets, tanks flues and so much more. Each cartridge comes with a re-sealable tip and is Sensor-Safe. This silicone sealant/adhesive has excellent elasticity and flexibility properties making them ideal for all your projects. Our silicone sealants are known for withstanding high temperatures, making them ideal for creating the perfect seal on your gaskets. It can be used as a superior adhesive for bonding surfaces together. It is the #1 choice by manufacturers to assemble their products. The 100% premium RTV comes in a 10.1 oz. tube or pals for larger jobs. This High-Temperature Silicone rates at 650 Degrees Fahrenheit for Intermittent exposure, which means that it can withstand temperatures this high for hours at a time. It can withstand up to 550 degrees continuously and is also available in blue.

This high-temp red and blue 100% RTV silicone sealant rubber is ideal for commercial, residential, and automotive applications.


Safety Data Sheet 


 Warranty and Shelf Life:

  Each application should be pre-tested for suitability of this product for the 
  intended use. When stored in the original, unopened container at temperatures 
  less than 90 degrees F (32 degrees C), our Silicones are guaranteed for one 
  year from date of purchase

Extra Information


5 Reviews

  • Posted by Dennis H. on Oct 8th 2023


    High temperature RTV silicone

    Used on outdoor wood stove to seal top plate on stove. I will also be using on door gasket replacements. Good product and a very good price. Thanks!!!

  • Posted by Steve Zandi on May 17th 2023


    good stuff

    cost effective, good quality sealant. Will continue to use in future. Thanks! Response: Thank you, Steve. We appreciate your feedback.

  • Posted by john chesarek on Mar 7th 2023


    RTV silicone

    does exactly what it is intended to do and for a great price

  • Posted by Mitch on Jun 10th 2020


    Works as intended

    We used this to seal up a custom batch oven in our facility. So far it's working very well. Quick shipping too. I plan to buy more when we build the next oven.

  • Posted by Michael Thomas on Jun 16th 2018


    Just like the higher priced brands but at a way better price

    Thank you Silicone Depot your high temp silicone is great. we pay almost 3 times the amount for the other guys. Everyone needs to buy from you guys for the fast shipping and the great price for the same product. Way to go.