I am looking for a product that will still have that rubbery traction but able to withstand temperature. I am trying to be able to attachan object to a piece of metal with magnets so that it can be attached and detached. I need the surface to keep it from slipping I.E. silicone.

Google "Curie Temperature" before using magnets on any type of homemade smoker,grill or stove repair. Because you chose this high heat sealant, I assume you'll be cooking or at least burning something. The sealant may hold the magnet to the desired object, but at a certain temperature, the magnet itself will fail.

would this work to repair a wooden boat? Is it waterproof?

I believe it probably would, not sure you would need 500 degree temperatures though. you can buy a regular black silicone at the auto parts store. regular black silicone should work great on a wooden boat.

linear crack small on car radiator

This would not work. Car radiators hold water under pressure as it heats up. Radiator caps generally are rated at 15 pound per square inch before they realese pressure.

Does it smell? After or before?

It smells like silicone sealer for a while then it fades after a day or so to nothing.

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🔥 Seal the heat, own the moment!

UV OIL RESISTANT - Engineered to stay clear and strong even under sun exposure and oily conditions—no fading, no corrosion.
READY TO USE NO FUSS - Comes in a 10.3 fl oz cartridge, no assembly or batteries needed—get your project done fast.
UNMATCHED HEAT DEFENSE - Withstands scorching temperatures up to 500°F, perfect for high-heat repairs and projects.
VERSATILE SURFACE GRIP - Bonds seamlessly to glass, metal, wood, plastics, and more—your all-in-one sealant solution.
DURABLE FLEXIBLE SEAL - Creates a tough yet flexible rubbery seal that resists cracking and wear over time.

Rutland 500°F RTV High Heat Silicone Sealant is a premium, USA-made adhesive designed to withstand extreme temperatures up to 500°F. Its clear, flexible formula bonds to a wide range of surfaces including metal, glass, wood, and plastics, making it ideal for high-heat repairs like fireplace inserts and stove heat shields. UV stable, oil resistant, and non-corrosive, this sealant ensures durable, long-lasting protection with easy application.

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€ 78.61

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Product Dimensions	4.76 x 4.76 x 28.58 cm; 292 g
Item Weight	10.3 Ounces
Specific uses	Repair
Item volume	10.3 Fluid Ounces
Resistance temperature	500 Degrees Fahrenheit
Is assembly required	No
Batteries required	No
Included components	Silicone Sealant
Import designation	Made in the USA

Rutland 500°F RTV High Heat Silicone Sealant Clear, USA-Made High Temperature Gasket Maker Adhesive - UV Stable, Oil Resistant & Non-Corrosive

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