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🖤 Seal it like a pro—black silicone, endless possibilities!
Silicone RTV 4500 is a premium FDA-grade black silicone sealant designed for high-strength, high-temperature applications up to 350°F. Its weatherproof, self-curing formula bonds to most surfaces, making it ideal for food-safe sealing, automotive repairs, and home projects. The 2.8 fl.oz tube with a precision nozzle delivers a consistent 1/8" bead, ensuring professional-grade results every time.
| Customer Reviews | 4.4 out of 5 stars 932 Reviews |
S**L
good stuff
The smell is horrid, but silicone curing usually is. That said it worked great as "gasket maker" for a large broken silicone o-ring on a stainless steel water pipe fitting.
G**D
Great Product
Great Product
A**E
Good product
I have a use for this stuff, but only a little bit at a time, over time. Now the problem with products like this is the amount you have left over in the tube - invariably it sets up. So I'm trying something different this time, since it is clearly a reaction with oxygen. I've got the whole tube immersed in water, kept in an old spaghetti sauce jar. No air at all. We'll see who wins this round! (so far, so good after a little more than a month).
F**R
Recommend for a BBQ smoker
Sealed the inside of my smoker around all the seams and joints (Not against the fire). Matches the black paint. I applied this prior to the first use/seasoning of my new smoker and wiped down the areas with rubbing alcohol prior to the application. It worked perfectly. Search the internet for how and why to apply this.It makes it much easier to maintain even temps.
G**O
Funciona.
Buen producto, cumplió la función en debida forma!
S**R
Food safe is misleading, for most people's usage
I got this to rig up a seal on an aging keurig and it worked ok, but I did some research into "food grade" silicone shortly after and this description is misleading. This product has a rating of NSF 51, which means it's safe for "incidental" food contact, i.e. brief. For a product that will be operating in a wet environment in continuous food contact, or immersed in liquid (which a lot of people are getting this for) you want NSF 61 rated products. Feel free to look it up if you want more information, there's plenty out there. Everyone can't be expected to know about every safety standard, and do all the research, when companies expect us to take everything at face value.
G**O
High Temperature and Food Safe sealant.
I have assembled together with this sealant four peaces of the broken lid of my donabe (Japanese soup pot made of clay).
A**R
Excellent product, works as advertised!
Used this to fill the leaks around my chimney and fire box on my 15 year old New Braunfels smoker. Thing works like it's brand new. Had been loosing smoke and control of the temperature. Have put about 15 cooks on it since using the product. 6 or 7 big grilling cooks with high temps and the rest 10-15 hour long smokes for briskets, ribs, and pork loins. Used Lavaloc gasket material and this leak sealer, loosing almost no smoke and have perfect control of the temperature again. Looks like my old smoker I almost gave up on, will last another 15 years. Great product!!
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