10 Best High Temp Silicone Sealants
for June 2021

Recommendations are independently chosen by MOOZ’s editors. Purchases you make through our links may earn us a commission.

1
9.9
SCORE
Hi-Temp RED RTV High Temperature Silicone Sealant FDA Rated Food Contact Safe BBQ Grill Smoker HVAC Gasket 2.8 OZ

JQuad Hi-Temp RED RTV High Temperature Silicone Sealant FDA Rated Food Contact Safe BBQ Grill Smoker HVAC Gasket 2.8 OZ

by JQuad
What We like

Will Remain Permanently Flexible And Provides Excellent Resistance To Aging, Vibration And Shock

more infoarrow_drop_down

Product Features

  • Formulated For Where Operating Temperatures Up To 600F (310C) Are Reached Intermittently
  • Excellent Adhesion And Versatility
  • Ready To Use And Requires No Mixing Or Additives 1/4 Bead Will Cure Within 24 Hours

Ready to use and requires no mixing or additives 1/4 bead will cure within 24 hours Formulated for where operating temperatures up to 600f (310c) are reached intermittently Excellent adhesion and versatility

2
9.5
SCORE
Surebond-SB-188 T High-Temp Silicone Sealant, 10.3 fl. oz. Cartridge - Black

Surebond-SB-188 T High-Temp Silicone Sealant, 10.3 fl. oz. Cartridge

Black

by SUREBOND
What We like

Item Package Weight: 10.0 lb

more infoarrow_drop_down

Product Features

  • Insulates electrically and thermally
  • Item Package Dimension: 8.0" L x 6.0" W x 11.5" H
  • High-temperature silicone sealant

High-temperature silicone sealant Item package dimension: 8.0" l x 6.0" w x 11.5" h Insulates electrically and thermally

3
9.2
SCORE
Hi-Temp RED RTV High Temperature Silicone Sealant - BBQ Smoker HVAC Gasket 10.2 OZ

JQuad Hi-Temp RED RTV High Temperature Silicone Sealant

BBQ Smoker HVAC Gasket 10.2 OZ

by JQuad
What We like

Will Remain Permanently Flexible And Provides Excellent Resistance To Aging, Vibration And Shock

more infoarrow_drop_down

Product Features

  • Excellent Adhesion And Versatility
  • Formulated For Where Operating Temperatures Up To 600F (310C) Are Reached Intermittently
  • Ready To Use And Requires No Mixing Or Additives 1/4 Bead Will Cure Within 24 Hours
  • Meets The Requirements Of FDA Regulation No. 21 CFR 177.2600 For Food Grade Applications

Ready to use and requires no mixing or additives 1/4 bead will cure within 24 hours Meets the requirements of fda regulation no. 21 cfr 177.2600 for food grade applications Formulated for where operating temperatures up to 600f (310c) are reached intermittently Excellent adhesion and versatility

4
9.1
SCORE
Surebond-SB-188 T High-Temp Silicone Sealant, 10.3 fl. oz. Cartridge

Surebond-SB-188 T High-Temp Silicone Sealant

10.3 fl. oz. Cartridge

by SUREBOND
What We like

Country of Origin : United States

more infoarrow_drop_down

Product Features

  • Package Dimensions: 28.0 H x 4.7 L x 5.0 W (centimetres)
  • Package Weight: 0.355 kilograms
  • High-temperature silicone sealant

Package dimensions: 28.0 h x 4.7 l x 5.0 w (centimetres) High-temperature silicone sealant Package weight: 0.355 kilograms

5
8.6
SCORE
J-B Weld 31314 High Temperature RTV Silicone Gasket Maker and Sealant - Red - 3 oz.

J-B Weld 31314 High Temperature RTV Silicone Gasket Maker and Sealant

Red, 3 oz.

by JBWeld
What We like

VERSATILE & DEPENDABLE: Ideal for automotive, metal, oil pans, exhaust manifolds, water pumps, timing covers, differential covers, drive housings and oven doors

more infoarrow_drop_down

Product Features

  • COUNT ON US: For more than 40 years, our products have earned a loyal following from people who take pride in their work. With each product we innovate, we continue to provide the world's strongest bond for your projects
  • DO IT YOURSELF: Big or small, you can DIY it with J-B. Our heavy duty adhesives repair & restore it right the first time. JB Weld delivers the legendary performance of the World's Strongest Bond
  • HI TEMP RED SILICONE GASKET MAKER & SEALANT: Is an RTV (Room Temperature Vulcanized) Silicone gasketing material, designed for use in mechanical assemblies where the existence of higher, continuous temperatures up to 550 F or 650 F intermittent might exist
  • EASY TO USE: Curing when the product is exposed to the moisture in air, it forms a tough, waterproof seal on most surfaces. It will not shrink or crack, resists weathering and is sensor safe

Hi temp red silicone gasket maker & sealant: is an rtv (room temperature vulcanized) silicone gasketing material, designed for use in mechanical assemblies where the existence of higher, continuous temperatures up to 550 f or 650 f intermittent might exist Count on us: for more than 40 years, our products have earned a loyal following from people who take pride in their work. with each product we innovate, we continue to provide the world's strongest bond for your projects Easy to use: curing when the product is exposed to the moisture in air, it forms a tough, waterproof seal on most surfaces. it will not shrink or crack, resists weathering and is sensor safe Do it yourself: big or small, you can diy it with j-b. our heavy duty adhesives repair & restore it right the first time. jb weld delivers the legendary performance of the world's strongest bond

6
8.5
SCORE
ASI Hi-Temp RED RTV High Temperature Silicone Sealant FDA Rated Food Contact Safe BBQ Smoker HVAC Gasket 10.2 OZ

ASI Hi-Temp RED RTV High Temperature Silicone Sealant FDA Rated Food Contact Safe BBQ Smoker HVAC Gasket 10.2 OZ

by ASI
What We like

Will Remain Permanently Flexible And Provides Excellent Resistance To Aging, Vibration And Shock

more infoarrow_drop_down

Product Features

  • Ready To Use And Requires No Mixing Or Additives 1/4 Bead Will Cure Within 24 Hours
  • Tube size: 10.2 Oz Color Red
  • Formulated For Where Operating Temperatures Up To 600F (310C) Are Reached Intermittently

Ready to use and requires no mixing or additives 1/4 bead will cure within 24 hours Tube size: 10.2 oz color red Formulated for where operating temperatures up to 600f (310c) are reached intermittently

7
7.6
SCORE
Sil-Bond RTV 6500 High Temperature Industrial Construction Grade Silicone - Red (2.8oz)

Sil-Bond RTV 6500 High Temperature Industrial Construction Grade Silicone

Red (2.8oz)

by Silco
What We like

Will Remain Permanently Flexible And Provides Excellent Resistance To Aging, Vibration And Shock

more infoarrow_drop_down

Product Features

  • Formulated For Where Operating Temperatures Up To 650F
  • Ready To Use And Requires No Mixing Or Additives 1/4 Bead Will Cure Within 24 Hours

Formulated for where operating temperatures up to 650f Ready to use and requires no mixing or additives 1/4 bead will cure within 24 hours

8
7.6
SCORE
DAP 8013 80133 High Temperature 100% Rtv Silicone Sealant, 10.3 Fl-Oz, Red

DAP 8013 80133 High Temperature 100% Rtv Silicone Sealant

10.3 Fl-Oz, Red

by DAP PRODUCTS INC.
What We like

100 % RTV Silicone Professional Grade

more infoarrow_drop_down

Product Features

  • Protect and seal with 100% RTV silicone
  • Can be used indoors or outdoors

Can be used indoors or outdoors Protect and seal with 100% rtv silicone

9
7.6
SCORE
Red Devil 0897 Extreme Temperature HVAC/R Silicone Sealant (Clear), 280 ml, 1 Pack

Red Devil 0897 Extreme Temperature HVAC/R Silicone Sealant (Clear)

280 ml, 1 Pack

by Red Devil
What We like

Solvent clean up

more infoarrow_drop_down

Product Features

  • Excellent adhesion
  • Long lasting flexibility
  • Will not crack, shrink or peel
  • Temperature range of -60 degrees Fahrenheit to 400 degrees Fahrenheit

Long lasting flexibility Excellent adhesion Temperature range of -60 degrees fahrenheit to 400 degrees fahrenheit Will not crack, shrink or peel

10
7.2
SCORE
Food Grade NSF FDA RTV Silicone Sealant Adhesive Red High Temp 10.3oz (Standard Version) (Standard Version)

Sil-Bond Food Grade NSF FDA RTV Silicone Sealant Adhesive Red High Temp 10.3oz (Standard Version) (Standard Version)

by Sil-Bond
What We like

Self cureing, easy to apply

more infoarrow_drop_down

Product Features

  • Food Safe (NSF & FDA Food Grade approval) 650F high temp
  • Waterproof
  • Bonds to All gaskets and all surfaces
  • Impervious to all weather conditions

Bonds to all gaskets and all surfaces Impervious to all weather conditions Food safe (nsf & fda food grade approval) 650f high temp Waterproof

expand_less

I Agree
We use cookies to enhance and personalise your experience with us by collecting information about the pages you visit and actions taken on the site. More details