---
product_id: 28560969
title: "Silicone RTV 4500 FDA Grade High Strength Silicone Sealant, Black (2.8 fl.oz)"
brand: "bbqgaskets.com"
price: "$15.89"
currency: USD
in_stock: true
reviews_count: 8
category: "Bb Qgaskets.Com"
url: https://www.desertcart.us/products/28560969-silicone-rtv-4500-fda-grade-high-strength-silicone-sealant-black
store_origin: US
region: United States of America
---

# 350°F continuous heat resistance FDA food contact safe Bonds to most surfaces seamlessly Silicone RTV 4500 FDA Grade High Strength Silicone Sealant, Black (2.8 fl.oz)

**Brand:** bbqgaskets.com
**Price:** $15.89
**Availability:** ✅ In Stock

## Summary

> 🖤 Seal smart, last long — the black silicone that never quits.

## Quick Answers

- **What is this?** Silicone RTV 4500 FDA Grade High Strength Silicone Sealant, Black (2.8 fl.oz) by bbqgaskets.com
- **How much does it cost?** $15.89 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/28560969-silicone-rtv-4500-fda-grade-high-strength-silicone-sealant-black)

## Best For

- bbqgaskets.com enthusiasts

## Why This Product

- Trusted bbqgaskets.com brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Food-Safe Confidence:** FDA-grade formula ensures safe use in kitchens and food prep areas without compromise.
- • **Heatproof Reliability:** Withstands up to 350°F for relentless performance in high-temp environments.
- • **Effortless Application:** Self-curing and easy to apply with included nozzle for precise, professional results every time.
- • **Universal Bonding Power:** Adheres effortlessly to metal, glass, ceramics, and more—your all-surface solution.
- • **Weatherproof Durability:** Impervious to rain, sun, and extreme weather—seal with confidence year-round.

## Overview

Silicone RTV 4500 is a premium FDA-grade, high-strength black silicone sealant designed for versatile use across food, automotive, and home applications. It withstands continuous temperatures up to 350°F, bonds to most surfaces, and cures on its own for easy, durable sealing and gasket creation. Perfect for professionals and DIYers seeking reliable, weatherproof performance with food-safe assurance.

## Description

2.8 ounce tube, BLACK color. Creates a 1/8" bead, 29' long nozzle included. Works for a wide variety of applications including restaurant, automotive, home, appliance and repair. 350F continuos temperature rating

Review: 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.
Review: 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!!

## Features

- Food Contact Safe (FDA grade) 350F high temp
- Impervious to all weather conditions
- Bonds to most surfaces
- Excellent for sealing or creating gaskets
- Self curing, easy to apply

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01F9HCFEC |
| Best Sellers Rank | #70,615 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #133 in Silicone Adhesives |
| Date First Available | September 23, 2014 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 3.52 ounces |
| Item model number | rtv4500B |
| Manufacturer | Silco |
| Package Dimensions | 5.91 x 2.4 x 1.14 inches |

## Product Details

- **Material:** Silicone
- **Brand:** Silco Incorporated
- **Style:** Compact
- **Item Weight:** 0.1 Kilograms
- **Compatible Material:** Silicone

## Images

![Silicone RTV 4500 FDA Grade High Strength Silicone Sealant, Black (2.8 fl.oz) - Image 1](https://m.media-amazon.com/images/I/71xaeCuR+xL.jpg)
![Silicone RTV 4500 FDA Grade High Strength Silicone Sealant, Black (2.8 fl.oz) - Image 2](https://m.media-amazon.com/images/I/31RC9IZ2DYL.jpg)
![Silicone RTV 4500 FDA Grade High Strength Silicone Sealant, Black (2.8 fl.oz) - Image 3](https://m.media-amazon.com/images/I/9102BUEPqsL.jpg)

## Questions & Answers

**Q: Do I have to prep the surface since I've used my grill several times?**
A: Yes, the grease and oils from cooking will effect the ability of the sealer to adhere to the surface. I used a spray degreaser and a stiff bristle brush and then finished with rubbing alcohol on a paper towel.

**Q: Is this applied inside or outside the smoker?**
A: Either one would work. The best application is inside the smoker so that the sealant isn't seen from the outside.

**Q: would this seal on a granite counter top joint?**
A: As a contactor that lays counter tops  I'd use a non-sanded grout with a latex mixing compound. It shouldn't take much.

**Q: Can it be used to adhere silacon feet to the grates of a cooktop?**
A: It should work fine as long as it is not expected to actually provide support.

## Customer Reviews

### ⭐⭐⭐⭐⭐ good stuff
*by S***L on June 10, 2025*

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.

### ⭐⭐⭐⭐⭐ Excellent product, works as advertised!
*by A***R on September 29, 2016*

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!!

### ⭐⭐⭐⭐ Works
*by H***S on November 5, 2024*

This was bought to adhere a fridge door seal which would not stop coming off. It works well and the seal has not displaced since the sealant was used.

## Frequently Bought Together

- Silicone RTV 4500 FDA Grade High Strength Silicone Sealant, Black (2.8 fl.oz)
- Dyna-Glo DGO1890BDC-D Wide Body Vertical Offset Charcoal Smoker,Black
- Dyna-Glo DG1890CSC Premium Vertical Offset Charcoal Smoker Cover Black

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-02*