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Heat Tolerant
Elastic
Durable

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

"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."
– Michael Thomas
7 reviews Write a Review
SKU:
11106
Price $8.49
1+
$8.49
96+
$7.93
360+
$7.47
720+
$7.05
1440+
$6.79
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Description

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

Starts:
From
Benefit 1:
Heat Tolerant
Benefit 2:
Elastic
Benefit 3:
Durable
Review text:
"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."
Review person:
– Michael Thomas
faq_question_1:
What payment methods do you accept? Will you keep my card information on file?
faq_answer_1:
We accept all major credit cards (Visa, Mastercard, American Express, Discover), PayPal, and Apple Pay. We do not keep your card information on file to protect your privacy.
faq_question_2:
Do you offer same-day shipping?
faq_answer_2:
We pride ourselves on industry-leading shipping speeds. Most smaller orders placed before 3:00 PM EST ship the same business day. Orders placed later in the day typically ship the next business day.
faq_question_3:
How fast will my order ship?
faq_answer_3:
You can expect your order within 3-5 business days. If you experience shipping issues or need your order sooner, contact us at info@siliconedepot.com or call 812-824-8000.
faq_question_4:
Can your silicone be painted?
faq_answer_4:
Most silicones cannot be painted with standard paints because paint won’t adhere properly. If paintability is important, we recommend using our Painter's Caulk.
faq_question_5:
What’s the shelf life of your silicone products?
faq_answer_5:
Most silicone sealants have a shelf life of 2 years from the date of manufacture. Always check the product label for the exact expiration date. Proper storage in a cool, dry place will help maximize performance.
faq_question_6:
What is your return or exchange policy?
faq_answer_6:
We offer a 1-year warranty on product quality within accordance to each product's labeled manufactured date. If you experience product issues, contact us at info@siliconedepot.com or call 812-824-8000.
faq_question_7:
How do you ship pallet-sized orders?
faq_answer_7:
By freight. If you need specific shipping accomdations, notated it within your order comments or contact us at info@siliconedepot.com or call 812-824-8000.
faq_question_8:
How much does shipping cost?
faq_answer_8:
All orders over $35 ship for free in the continential U.S.
faq_question_9:
Can I request a quote for a large order?
faq_answer_9:
Yes, click here for a custom quote, and our team will reach out.
faq_question_10:
Can this product be used on vinyl surfaces?
faq_answer_10:
Yes, this product can be used on vinyl surfaces
faq_question_11:
Does this product have an odor?
faq_answer_11:
Yes, this product releases acetic acid as it cures (vinegar smell).
faq_question_12:
Can this product be used around electrical wire?
faq_answer_12:
No, this product cannot be used around electrical wire.
faq_question_13:
Is this product safe for chimneys?
faq_answer_13:
This product is safe to use outside the chimney.
faq_question_14:
Do you offer bulk discounts? How does tiered pricing work?
faq_answer_14:
Yes! We offer tiered pricing, which means the more you buy, the more you save. Each product page shows price breaks at different quantity levels.

See what the community says

  • Posted by Doug on May 29th 2025

    5

    High temp silicone

    Working well. Let’s see if it holds up for 20 years. Price was great

  • Posted by JOE CARTER on May 9th 2024

    5

    Your Red High Temp Silicone Sealant

    This material is ideal for the sealing and potting of relatively low temperature glass textiles we use as gaskets on some of our equipment.

  • Posted by Dennis H. on Oct 8th 2023

    5

    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

    5

    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

    5

    RTV silicone

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

  • Posted by Mitch on Jun 10th 2020

    5

    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

    5

    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.