---
product_id: 489495832
title: "Momentive RTV103 One Part Silicone Sealant"
brand: "momentive"
price: "406.39 DT"
currency: TND
in_stock: true
reviews_count: 5
url: https://www.desertcart.tn/products/489495832-momentive-rtv103-one-part-silicone-sealant
store_origin: TN
region: Tunisia
---

# Water resistant & FDA compliant Temp range -75°F to +400°F One-part, no primer needed Momentive RTV103 One Part Silicone Sealant

**Brand:** momentive
**Price:** 406.39 DT
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal the deal with pro-grade strength and versatility!

## Quick Answers

- **What is this?** Momentive RTV103 One Part Silicone Sealant by momentive
- **How much does it cost?** 406.39 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/489495832-momentive-rtv103-one-part-silicone-sealant)

## Best For

- momentive enthusiasts

## Why This Product

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

## Key Features

- • **Trusted by Pros:** Preferred by aquarium builders and industrial users for superior tensile strength and reliability.
- • **Food-Safe & Certified:** Meets FDA, USDA, NSF, and Military specs for safe use in sensitive environments.
- • **Extreme Temperature Resilience:** Withstands from -75°F up to 400°F for unmatched durability indoors and out.
- • **Effortless Application Anywhere:** One-part paste consistency sticks to vertical and overhead surfaces without sagging.
- • **Universal Surface Compatibility:** Bonds seamlessly to metal, glass, ceramic, silicone rubber, and select plastics—no primer required.

## Overview

Momentive RTV103 is a premium one-part white silicone sealant designed for filling gaps up to 1/4" in both indoor and outdoor settings. Its paste consistency enables application on vertical and overhead surfaces without primer, adhering to a wide range of materials including metals, glass, and plastics. Engineered to endure extreme temperatures from -75°F to 400°F, it meets rigorous FDA, USDA, NSF, and Military standards, making it ideal for food-contact and industrial uses. Highly rated for its durability and trusted by professionals, it offers water resistance and UL recognition for peace of mind.

## Description

General purpose, one-part silicone sealant that cures to a tough, durable, resilient silicone rubber on exposure to atmospheric moisture at room temperature. Standard strength paste consistency product that can be applied to vertical and overhead surfaces where pourable / self-leveling sealants are not practical. Has excellant low and high temperature performance (-75° to 400°F). Can be used in food contact applications where FDA regulations apply (Reference: CDS4319). Recognized by UL under UL FIle # E-36952.

Review: Perfect for aquarium rebuilding - This is the same product that many of the aquarium builders use. This is an adhesive, which has a much higher tinsel strength and adhesion strength than the average sealant you get at the pet store. The working time is around 12 minutes. You need to plan out your assembly and go through a dry run or two before actually attempting to put it together for real. The tube was well within date, it was only a couple months old when i got it. If you are doing a tank bigger than 5 gallons, consider the calking tube. This is not the easiest to use to lay down a long even thin bead and keep it smooth and straight. It takes a decent amount of pressure with a thinner bead, you may run into hand fatigue by the time you are finishing up.
Review: Worked perfectly - Performed the function as seen on the back of the instructions. Excellent buy

## Features

- One-part white RTV silicone sealant for filling and sealing gaps or cracks up to 1/4" wide in indoor and outdoor applications
- Paste consistency allows for application on vertical or overhead surfaces
- Adheres to many metals, glass, ceramic, silicone rubber, and some rigid plastics without the use of primer
- Continuous service range is -75 to +400 degrees F (-60 to +204 degrees C) and intermittent service range is -75 to +500 degrees F (-60 to +260 degrees C)
- Meets Military Specification MIL-A-46106 and NSF Standard 51, is FDA 21 CFR 177.2600 compliant, is USDA compliant, and has UL recognized components

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004V40CDG |
| Best Sellers Rank | #43,312 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #48 in Silicone Caulk |
| Brand | Momentive |
| Brand Name | Momentive |
| Colour | White |
| Compatible Material | Glass, Metal, Plastic, Wood |
| Customer Reviews | 4.4 out of 5 stars 15 Reviews |
| Item Form | Liquid |
| Item Type Name | Silicone Sealant |
| Item Weight | 0.1 Pounds |
| Manufacturer | Momentive |
| Manufacturer Part Number | RTV103-2.8 |
| Material | Silicone |
| Material Type | Silicone |
| Model | RTV 103 |
| Number of Items | 1 |
| Style | RTV103 |
| Style Name | RTV103 |
| UPC | 013161053655 |
| Unit Count | 82.8 Grams |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Momentive
- **Item Weight:** 0.1 Pounds
- **Material:** Silicone Rubber
- **Style:** RTV103
- **Water Resistance Level:** Waterproof

## Images

![Momentive RTV103 One Part Silicone Sealant - Image 1](https://m.media-amazon.com/images/I/41LqMN9EwTL.jpg)

## Questions & Answers

**Q: What are the expiration dates for the 12 in stock?**
A: 11 are 7/19 and the last one is 3/20.
I am not the seller.
I bought this 4 years ago and don't remember it.

**Q: i just purchased rtv 108. i need a manufacturers certification and msds sheets please**
A: http://www.farnell.com/datasheets/1797719.pdf

**Q: Is this safe for terrariums?**
A: This is a food safe silicone sealant that many use for aquariums so it should be fine for a terrarium.  It is definitely waterproof.

**Q: Does this product have a shelf life?**
A: Any RTV product I've ever used eventually dries up if not used within a period of time but i'm not sure how long that takes. You should only buy what you think you'll need for the job. They make this in a smaller tube if the calk gun size seems too much.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect for aquarium rebuilding
*by S***W on 26 March 2014*

This is the same product that many of the aquarium builders use. This is an adhesive, which has a much higher tinsel strength and adhesion strength than the average sealant you get at the pet store. The working time is around 12 minutes. You need to plan out your assembly and go through a dry run or two before actually attempting to put it together for real. The tube was well within date, it was only a couple months old when i got it. If you are doing a tank bigger than 5 gallons, consider the calking tube. This is not the easiest to use to lay down a long even thin bead and keep it smooth and straight. It takes a decent amount of pressure with a thinner bead, you may run into hand fatigue by the time you are finishing up.

### ⭐⭐⭐⭐⭐ Worked perfectly
*by A***R on 30 April 2024*

Performed the function as seen on the back of the instructions. Excellent buy

### ⭐⭐⭐ Excellent product, but the tube broke open on the ...
*by R***R on 28 March 2016*

Excellent product, but the tube broke open on the end and made a big mess. I ended up throwing it away.

## Frequently Bought Together

- Momentive RTV103 One Part Silicone Sealant, 2.8 Ounce Tube, Black
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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-07-25*