Top 10 Best Glue For High Heat [2024]

No	Product	Score	Action
1	Rutland 500-Degree RTV High Heat Silicone Seal	9.8	Buy On Amazon
2	Permatex 84102 High Heat Epoxy - 500 Degree	9.8	Buy On Amazon
3	Rutland Products 76C 500-Degree RTV High Heat Silicone Seal	9.6	Buy On Amazon
4	J-B Weld 8297 HighHeat 500 Degree Epoxy Putty Stick - 2 oz	9.4	Buy On Amazon
5	Rutland 500°RTV High Heat Silicone (Black) 2.7 Oz. Tube	9.2	Buy On Amazon
6	J-B Weld 31314 High Temperature RTV Silicone Gasket Maker and Sealant - Red - 3 oz	8.8	Buy On Amazon
7	LavaLock Black Food Safe BBQ Adhesive 3 oz Grill Smoker High Temp RTV Silicon	8.8	Buy On Amazon
8	Aron Alpha Industrial Krazy Glue-AA900 Aron Alpha 414TXZ (6,000 cps) High Heat (250 F) and Impact Resistant Instant Adhesive 50 g (1.76 oz) Bottle	8.4	Buy On Amazon
9	Sil-Bond RTV 6500 High Temperature Industrial Construction Grade Silicone - Red (2.8oz)	8.4	Buy On Amazon
10	J-B Weld 37901 ExtremeHeat High Temperature Resistant Metallic Paste - 3 oz	8.2	Buy On Amazon

Disclaimer: As An Amazon Associate I Earn From Qualifying Purchases.

Rutland High Temperature Silicone is a great solution to your sealant and adhesive needs
Forms a tough and flexible seal
Will adhere to most clean surfaces including: glass, metal, plastics, fiberglass, wood, brick, and stone.
Seal fireplace inserts, repair solar panels, apply ceramic tiles to your fireplace surround or heat shielding behind your stove, the uses are endless.
Rated to withstand up to 500° F (260° C)

Rutland High Temperature Silicone is a great solution to your sealant and adhesive needs
Forms a tough and flexible seal
Will adhere to most clean surfaces including: glass, metal, plastics, fiberglass, wood, brick, and stone.
Seal fireplace inserts, repair solar panels, apply ceramic tiles to your fireplace surround or heat shielding behind your stove, the uses are endless.
Rated to withstand up to 500° F (260° C)

J-B WELD HIGHHEAT: A hand mixable two part epoxy putty stick that is formulated to repair and rebuild materials that will be exposed to high temperatures in automotive and industrial maintenance applications.
CURE AND SET TIME: After kneading the two part formula together by hand, HighHeat takes 1 hour to set and cures in 8 hours.
PRODUCT FEATURES AND STRENGTH: J-B Weld HighHeat has lap shear strength of 800 PSI at room temperature and 600 PSI at 400oF (204oC) or more.
MAJOR USES: Exhaust Manifolds, Tail Pipes, Mufflers, Engine Blocks, Duct Work, Machinery and other high temperature equipment.
DO IT YOURSELF: Big or small, you can DIY it with J-B Weld.
3 times stronger at high temperatures
Withstands continuous heat up to 450 degrees Fahrenheit, and intermittent heat up to 500 degrees Fahrenheit.
Strength of 800 PSI at room temperature and 600 PSI at 400 degrees Fahrenheit
Perfect for tail pipes, mufflers, machinery, engine blocks, and exhaust manifolds
Special Shipping Information: This item cannot be returned and has additional shipping restrictions

Rutland High Temperature Silicone is a great solution to your sealant and adhesive needs
Forms a tough and flexible seal
Will adhere to most clean surfaces including: glass, metal, plastics, fiberglass, wood, brick, and stone.
Seal fireplace inserts, repair solar panels, apply ceramic tiles to your fireplace surround or heat shielding behind your stove, the uses are endless.
Rated to withstand up to 500° F (260° C)

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 550º F or 650º 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.
EASY TO USE: Curing when the product is exposed to the moisture in air, it forms a tough, waterproof seal on most surfaces.
VERSATILE & DEPENDABLE: Ideal for automotive, metal, oil pans, exhaust manifolds, water pumps, timing covers, differential covers, drive housings and oven doors.
DO IT YOURSELF: Big or small, you can DIY it with J-B.

FOOD CONTACT SAFE – Meets Specs for FDA Food Contact Safe High, temp BBQ smoker grill & wood stove sealer.
HIGH TEMP – Black color 450F Max temp. 3 oz tube (2.8 fl. ounce)
PREMIUM GRADE – RTV adhesive Super High Tack & Self Curing
SUPERIOR BOND – Bonds to all gaskets, smoker doors, lids and all grill surfaces.
EASY TO USE – Includes applicator tip. One tube makes a 1/8” bead at 29 feet long!

Fast curing, ethyl-2 cyanoacrylate instant adhesive; Designed for applications requiring high heat resistance, high peeling resistance, high impact resistance and thermal shock resistance.
No run, gel viscosity (6,000 cps) for gap filling up to 0.008 inches
Fixture time within 3 seconds on rigid PVC; 5 seconds on Neoprene; 10 seconds on Steel and 30 seconds on Aluminum; Full cure 24 hours.
Shear strength (PSI) on rigid PVC, : 3,600, Steel: 4,300; Impact resistance bonding steel to steel is 7 ft-lbs per square inch; Heat resistance bonding steel to steel after exposure 248 F x 24 hours is 1,700 PSI.
Designed for metal and rubber surfaces and can withstand extreme hot and cold temperatures

JB WELD EXTREME HEAT: Is formulated for repairs to iron, steel and metal in high temperature environments 1000°F / 537°C.
THE ORIGINAL COLD WELD: JB Weld was developed as an alternative to torch welding.
SIMPLE TO USE: When fully cured, this metallic compound can be drilled, machined or sanded.
VERSATILE & DEPENDABLE: Ideal for repair work on : exhaust manifolds, pipe connections, mufflers, catalytic converters, outdoor grills, fire boxes, gas and commercial furnaces and water heaters.
DO IT YOURSELF: Big or small, you can DIY it with J-B.