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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Rutland Clear High Temp Silicone Sealant RTV Gasket Maker - Heat Resistant Glue & Clear RTV Silicone Sealant Adhesive, Gasket Sealer 500F

Product ID: 2943069

Details

Brand
RUTLAND
Item Weight
10.3 ounces
Item dimensions L x W x H
1.88 x 1.88 x
Material
Silicone
Style
Industrial

🔥Withstands up to 500°F heat

🛠️Professional-grade flexible gasket seal

🛢️Resists fuel, oil & chemicals

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Description

🔥 Seal the heat, skip the stress — clear, tough, and built to last!

INVISIBLE STRENGTH - Clear formula blends seamlessly on metal, glass, and composites—no more ugly sealant lines, just sleek, professional finishes.
EXTREME HEAT DEFENSE - Engineered to endure scorching 500°F temps without cracking or shrinking—perfect for high-stress engine and stove seals.
FUEL PROOF RELIABILITY - Advanced chemical resistance keeps seals intact against gasoline, oil, coolant, and transmission fluids—built for harsh environments.
VERSATILE INDUSTRIAL POWER - Ideal for automotive, fireplace, and industrial gasket applications—one sealant to rule all your high-temp bonding needs.
MADE IN THE USA TRUSTED WORLDWIDE - Crafted by Rutland since 1883, combining heritage quality with modern performance for pros and DIYers alike.

Rutland Clear High Temp Silicone Sealant is a professional-grade RTV gasket maker designed to withstand extreme temperatures up to 500°F. Its clear, flexible silicone formula resists fuels, oils, and chemicals, making it ideal for automotive, fireplace, and industrial sealing applications. Trusted since 1883 and made in the USA, this 10.3 oz cartridge delivers durable, invisible seals that won’t crack, shrink, or peel—perfect for millennial pros who demand reliability and sleek finishes.

Specifications

ASIN	B000DZBLNC
Best Sellers Rank	#12,347 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Industrial Gasket Makers
Brand	RUTLAND PRODUCTS
Brand Name	RUTLAND PRODUCTS
Color	Clear
Compatible Material	All Surfaces
Customer Reviews	4.6 out of 5 stars 2,158 Reviews
Global Trade Identification Number	00022624003762
Included Components	Silicone Sealant
Item Dimensions	1.88 x 1.88 x 11.25 inches
Item Form	High Temp Silicone
Item Type Name	Rutland Products 76C 500-Degree RTV High Heat Silicone Seal, 10.3-Ounce Cartridge, Clear
Item Weight	10.3 ounces
Item dimensions L x W x H	1.88 x 1.88 x 11.25 inches
Manufacturer	Rutland Products
Material	Silicone
Material Type	Silicone
Model	76C
Number of Items	1
Number of Packs	1
Part Number	76C
Style	Industrial
Style Name	Industrial
UPC	022624003762
Unit Count	10.3 Fluid Ounces
Warranty Description	12 months.
Water Resistance Level	Waterproof

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TrustScore 4.5 | 7,300+ reviews

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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33151CFA

Duties & taxes included

In stock

Sold byAmazon Cote D' IvoireDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cote D' Ivoire.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

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Perfect platform for hard-to-find items. Delivery was prompt.

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