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, not your style!

GASKET GRADE SEAL - Creates durable, flexible seals perfect for smokers, fireplaces, and heat shields.
VERSATILE ADHESION - Bonds effortlessly to glass, metal, plastics, wood, brick, and stone—your all-in-one sealant.
CRYSTAL CLEAR FINISH - Dries transparent to maintain a sleek, professional look on any surface.
GENEROUS CARTRIDGE SIZE - 10.3 fl oz capacity ensures you have enough sealant for multiple projects without constant refills.
HEAT RESISTANT POWERHOUSE - Endures extreme temperatures up to 500°F for reliable, long-lasting seals.

Rutland's 500°F RTV High Heat Silicone is a clear, acetoxy-cure sealant designed to withstand extreme heat up to 500°F. Ideal for creating gasket-like seals on fireplaces, smokers, and heat shields, it bonds to a wide range of materials and dries clear for a professional finish. Packaged in a 10.3 fl oz cartridge, it offers durability and versatility for all your high-temperature sealing needs.

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Manufacturer	Rutland Products
Part Number	76C
Product Dimensions	4.76 x 4.76 x 28.58 cm; 292 g
Item model number	76C
Size	4.9225199999999996 x 4.9225199999999996 x 28.574999999999999 cm
Colour	Clear
Material	Liquid
Item Package Quantity	1
Special Features	Dries Clear
Batteries included?	No
Batteries Required?	No
Item Weight	291 g

RUTLAND PRODUCTS 500°F RTV HIGH Heat Silicone (Clear) Cartridge, 10.3 fl oz, Liquid, 4.92 x 4.92 x 28.57 cm

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