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Silicone RTV 4500 Food Contact Safe High Strength Silicone Sealant, Clear (2.8 FL. Ounce)

4.4 4.4 out of 5 stars 4,755 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Silicone Adhesives by Silco
$7.42 with 24 percent savings $2.65 per Fl Oz
List Price: $9.78

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Purchase options and add-ons

Brand Silco
Material Rubber
Compatible Material Silicone
Item Form Paste
Color Clear

About this item

  • Food Contact Safe 350F high temp
  • Impervious to all weather conditions
  • Bonds to most surfaces
  • Excellent for sealing or creating gaskets
  • Self curing, easy to app

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Silicone RTV 4500 Food Contact Safe High Strength Silicone Sealant, Clear (2.8 FL. Ounce)
$7.42 ($2.65/Fl Oz)
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Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Package Dimensions ‏ : ‎ 6.54 x 2.6 x 1.18 inches; 2.8 ounces
  • Item model number ‏ : ‎ FDA-RTV-3oz-cl
  • Date First Available ‏ : ‎ September 23, 2014
  • Manufacturer ‏ : ‎ Silco incorporated
  • ASIN ‏ : ‎ B00NU6VN6G
  • Customer Reviews:
    4.4 4.4 out of 5 stars 4,755 ratings

Product Description

ITEM_NAME: Food safe NSF RTV Silicone Sealant Adhesive Clear 2.8oz PRODUCT_DESCRIPTION: Sil Bond 4500 NSF Clear 100% RTV Silicone Adhesive/Sealant (2.8 oz Squeeze Tube) Clear Sil Bond 100% RTV Silicone Adhesive sealant meets specs for NSF approved non-slump silicone paste which has excellent resistance to extreme temperature, moisture, ozone, vibration, and weathering. Product Specs: One-part acetoxy silicone rubber sealant Approved as a food grade silicone - NSF/ANSI Standard 51, USDA approved Will not crack or become brittle with age Application temperature -35 to 140° F Ex. The BOD or Born On Date is stamped on the bottom of the tube. The BOD is not the expiration date. The product should be used within 2 years of the BOD.

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Customer reviews

4.4 out of 5 stars
4.4 out of 5
4,755 global ratings

Customers say

Customers like that the silicone is food-safe and can be used among food products. They also appreciate that it performs well and is perfect on the first try. However, some customers report durability issues with the product. Opinions are mixed on ease of use, value, adhesion, and seal.

AI-generated from the text of customer reviews

187 customers mention164 positive23 negative

Customers like the quality of the bonding adhesive. They say it performs well, is perfect on the first try, and holds up for weeks. Some mention that it's awesome and works great for a few glasses and vases they needed to repair.

"Worked well, but kind of hard to get out." Read more

"...The odor indoors has disappeared in about 18 hours and it is no longer tacky.So far so good...." Read more

"Good product" Read more

"...But it works well enough that I'm willing to poke all the dry adhesive out of the nozzle to use it again...." Read more

44 customers mention33 positive11 negative

Customers are happy with the safety of the bonding adhesive. They mention that it's food-safe, non-toxic, and easy to apply. Some say that it is rated kitchen safe and can be used on dishes.

"...caps with it waited for it to dry and problem solved, and because it's food grade I don't have to worry about it leaching anything into my drinks." Read more

"It is sticky. It is clear. It hasn't made me sick. It is fine." Read more

"Product listing claims this is food safe. It’s not. “Suspect of damaging fertility” is only the beginning…see photo of actual packaging...." Read more

"...was able to secure the lid and do so in a manner that was safe to use among food products. A lot cheaper than buying a replacement lid!" Read more

62 customers mention28 positive34 negative

Customers are mixed about the adhesion of the product. Some mention that it works as advertised, and adheres to glass and wood seams well. However, others say that it doesn't stick very well, and barely adheres.

"...It is not a super glue or Gorilla glue. As an example, the bead inside an aquarium...." Read more

"It is sticky. It is clear. It hasn't made me sick. It is fine." Read more

"...more of a silicon/caulk/self gasket type of product, and not really an adhesive...." Read more

"...I have heated the fryer to 400 degrees many times and it is still holding perfect. Exactly what I needed to repair my air fryer." Read more

58 customers mention35 positive23 negative

Customers have mixed opinions about the seal. Some say it's effective in creating an airtight seal, and works well for functional glass pieces. However, others say it doesn't create an air tight seal and the sealant is more inclined to come out in the back of the tube.

"Worked well to seal leaking coffee carafe, but most of tube was dried up and couldn’t be used. I luckily didn’t need much to fix the coffee carafe." Read more

"...pump ran down the base of the fountain eroded and the water from the fountain drained empty...." Read more

"...This made the crocs completely waterproof again, and sealed the cracks and divits I had in them the only reason giving for four stars is because I..." Read more

"Perfect seal for functional glass pieces." Read more

53 customers mention34 positive19 negative

Customers have mixed opinions about the ease of use of the bonding adhesive. Some mention that it's fairly easy to apply, goes on very smoothly, and sets quickly. However, others say that it was a pain to apply due to limited room to work, and that it gets tacky.

"...It is easy to use, and is perfectly crystal clear. As a product, there is nothing wrong with it and it does what it should...." Read more

"...lot of reviews for this product that indicate that it stinks, that it is tacky and that it doesn't hold strong with pressure or force applied...." Read more

"...Silicon is food-grade, easy to apply, and clear to the eye. The tube comes with a lot so it can be used for multiple projects...." Read more

"We used this to create a seal on a metal pet fountain. Went on easily enough. Let it cure for 24 hours and voila!..." Read more

37 customers mention18 positive19 negative

Customers are mixed about the value of the outdoor recreation product. Some mention it's great value, saving a bunch of money for a repair call. However, others say that it'd be a waste of money, overpriced for such little volume, and useless.

"...A lot cheaper than buying a replacement lid!" Read more

"...It's a bit more expensive, but... this is food-safe silicone, so depending on your projects, this is well worth the price." Read more

"...sealant as it is food-grade, rated for freezing temps, and at a LOT better price than the Samsung sealant!" Read more

"...No good for that job at all. It takes a long time to start curing, and then when it does it doesn't really harden, but gets tacky...." Read more

41 customers mention0 positive41 negative

Customers are dissatisfied with the durability of the bonding adhesive. They mention that it feels like it will tear at any moment, the door bins cracked easily, and the freezer drawer base broke. The made-in-China plastic cap broke apart upon first use.

"...that indicate that it stinks, that it is tacky and that it doesn't hold strong with pressure or force applied...." Read more

"...a week the front broke off one of the drawers and the handle broke off the ice bucket. This actually worked to fix both...." Read more

"...Last week the blade assembly came apart after decades of service. Needless to say, replacement parts are not available...." Read more

"...After 2+ years, one of the plastic pillars broke off, coffee was spilling everywhere. So I called Zura, they said they would fix it for $500!!..." Read more

Great watertight sealant!
5 Stars
Great watertight sealant!
When I had to change the motor pump for my patio fountain I used a plumbing calk leftover from a recent bath remodel. After a few days of water exposure, the other sealant I used to watertight the small hole where the power cord from the pump ran down the base of the fountain eroded and the water from the fountain drained empty. I tried this Silco silicone sealant and it I still doing the job after one month.
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Top reviews from the United States

Gregory Crase
5.0 out of 5 stars Good Product
Reviewed in the United States on March 16, 2024
Verified Purchase
I bought some glass drinking bottles and some of the caps leaked no matter how I tighten them, so I got this and went around the inside of the caps with it waited for it to dry and problem solved, and because it's food grade I don't have to worry about it leaching anything into my drinks.
5 people found this helpful
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Gofish
5.0 out of 5 stars Good Stuff
Reviewed in the United States on April 1, 2024
Verified Purchase
Worked well, but kind of hard to get out.
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jmoonx14
4.0 out of 5 stars It Is a Silicone Sealant Folks
Reviewed in the United States on April 15, 2023
Verified Purchase
I see a lot of reviews for this product that indicate that it stinks, that it is tacky and that it doesn't hold strong with pressure or force applied. This sealant is intended for creating gaskets and for thin beads intended for sealing. It is not a super glue or Gorilla glue. As an example, the bead inside an aquarium. It will be water tight and do its job but it can easily be removed or pulled apart after curing. The smell is of vinegar as that is the acid that gasses out during the cure. This is normal and anyone that has used RTV in the past is aware. You have to be patient and let it cure before using it in an environment where the odor will be an issue. I suggest 48 hours per every 1/8" of bead thickness, room temperature and to use a good vent fan.

The tube is hard to squeeze as others have stated and I suggest rolling it from the bottom up to assist in getting the pressure up. I made a thin seam between two perpendicular aluminum sheets and the bead was about 1/16" thick and 10 feet in length. It wore my hand out but I took my time. The odor indoors has disappeared in about 18 hours and it is no longer tacky.

So far so good.

Some of the negative reviews seem to come from those who have never used silicone caulking or RTV in general. This stuff acted and smelled just like every other similar product I have ever used. If you are using it as a waterproof gasket it works fine. If you are using it to hold a broken coffee cup handle, hold tensile weight or resist breaking under a lot of torque...it is not going to perform well.
90 people found this helpful
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Kim Sullivan
5.0 out of 5 stars Works as intended
Reviewed in the United States on April 8, 2024
Verified Purchase
Good product
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K.R. Smith
5.0 out of 5 stars Great watertight sealant!
Reviewed in the United States on March 27, 2024
Verified Purchase
When I had to change the motor pump for my patio fountain I used a plumbing calk leftover from a recent bath remodel. After a few days of water exposure, the other sealant I used to watertight the small hole where the power cord from the pump ran down the base of the fountain eroded and the water from the fountain drained empty. I tried this Silco silicone sealant and it I still doing the job after one month.
Customer image
K.R. Smith
5.0 out of 5 stars Great watertight sealant!
Reviewed in the United States on March 27, 2024
When I had to change the motor pump for my patio fountain I used a plumbing calk leftover from a recent bath remodel. After a few days of water exposure, the other sealant I used to watertight the small hole where the power cord from the pump ran down the base of the fountain eroded and the water from the fountain drained empty. I tried this Silco silicone sealant and it I still doing the job after one month.
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Customer image
Customer image
2 people found this helpful
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Bj
5.0 out of 5 stars Easy to use and it has worked so far.
Reviewed in the United States on April 8, 2024
Verified Purchase
Repair a pottery pie dish.
2 people found this helpful
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Rachael Yingst
3.0 out of 5 stars Works well but was mostly dried up
Reviewed in the United States on February 28, 2024
Verified Purchase
Worked well to seal leaking coffee carafe, but most of tube was dried up and couldn’t be used. I luckily didn’t need much to fix the coffee carafe.
3 people found this helpful
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Katharine
5.0 out of 5 stars It worked!
Reviewed in the United States on December 21, 2023
Verified Purchase
I guess our fridge is just at that age because within a week the front broke off one of the drawers and the handle broke off the ice bucket. This actually worked to fix both. I'm not sure how you're supposed to close it or seal it after you put the long nozzle on the tube. Take the nozzle off full of goo and put the small top back on? But it works well enough that I'm willing to poke all the dry adhesive out of the nozzle to use it again. Since I had it, I used it to fix a flip flop too.
6 people found this helpful
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