---
product_id: 89079685
title: "DOW Corning Glass Silicone Aquarium Sealant (300 ML, Rust Resistant)"
brand: "dowsil"
price: "$20.21"
currency: USD
in_stock: true
reviews_count: 8
category: "Dowsil"
url: https://www.desertcart.us/products/89079685-dow-corning-glass-silicone-aquarium-sealant-300-ml-rust-resistant
store_origin: US
region: United States of America
---

# aquarium-safe, fish-friendly 100% waterproof seal fast curing, professional grade DOW Corning Glass Silicone Aquarium Sealant (300 ML, Rust Resistant)

**Brand:** dowsil
**Price:** $20.21
**Availability:** ✅ In Stock

## Summary

> 🐠 Seal it right, seal it tight — your aquarium’s best friend!

## Quick Answers

- **What is this?** DOW Corning Glass Silicone Aquarium Sealant (300 ML, Rust Resistant) by dowsil
- **How much does it cost?** $20.21 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/89079685-dow-corning-glass-silicone-aquarium-sealant-300-ml-rust-resistant)

## Best For

- dowsil enthusiasts

## Why This Product

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

## Key Features

- • **Fish-Safe Formula:** Guaranteed non-toxic for all aquarium inhabitants—keep your aquatic friends safe.
- • **Versatile Application:** Perfect for aquariums of any size and multiple materials like glass, ceramic, and aluminum.
- • **Rust-Resistant Durability:** Built to last with rust-resistant properties, ensuring long-term reliability.
- • **Fast Curing for Efficiency:** Professional-grade silicone that sets quickly, saving you time on every project.
- • **Ultimate Waterproof Protection:** Seals glass and non-porous surfaces with 100% waterproof confidence.

## Overview

DOWSIL DOW Corning Glass Silicone Aquarium Sealant is a 300ml, fast-curing, rust-resistant silicone sealant designed for professional use. It offers 100% waterproof protection, is completely safe for all fish species, and adheres strongly to glass and other non-porous materials, making it ideal for aquariums of any size.

## Description

Dow Corning Glass Sealant Is A Fast Curing High Performance, Acetic Cure Silicone Sealant For Professional Trade Application. It Adheres To Glass, Ceramic, Fiberglass, Aluminum And Many Other Non-Porous Building Materials. It May Be Used To Glaze And Waterproof For Windows, Doors, Shopfronts, Internal Fixture And Fittings, Skylights.

Review: Good - Good product serves the purpose
Review: Okay - Okay

## Features

- Silicone and waterproof
- Nog sag, 100 % aquarium safe
- Not harmful for any kind of fishes
- Any size aquarium can be made with this

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07JFQZY7Q |
| Best Sellers Rank | #2,445 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #7 in Silicone Caulk |
| Brand | Dowsil |
| Brand Name | Dowsil |
| Colour | multicolor |
| Customer Reviews | 4.2 out of 5 stars 438 Reviews |
| Included Components | 1 |
| Item Form | Liquid |
| Item Type Name | Silicone Aquarium Sealant |
| Item Weight | 365 Grams |
| Liquid Volume | 300 Millilitres |
| Manufacturer | DOW CORNING ®, DOW CORNING ® |
| Manufacturer Contact Information | DOW CORNING ® |
| Material Type | Silicone |
| Maximum Gap Fill | 1 Mils |
| Packer Contact Information | Packer: Eagle Network Supply Pvt. Ltd. , Khasra No. 399 Delhi - 110030 ; +91 1143528338 |
| Size of liquid in ounces | 300 Millilitres |
| Surface Recommendation | Fixture |
| Unit Count | 300 Milliliters |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Dowsil
- **Colour:** multicolor
- **Item Form:** Liquid
- **Item Weight:** 365 Grams
- **Liquid Volume:** 300 Millilitres

## Images

![DOW Corning Glass Silicone Aquarium Sealant (300 ML, Rust Resistant) - Image 1](https://m.media-amazon.com/images/I/51lo92xD10L.jpg)

## Questions & Answers

**Q: Amazon is not accepting order for 3 pieces, as only one product is left**
A: Then order one .. you also bought it from local aquarium seller .. I  300 rs

**Q: Wich cantri med this prodak ?    Korya or japan**
A: Korea

**Q: Can we use to fix glass for acquarium as a platform for turtles?**
A: Yes it can be done

**Q: Expiry date??**
A: ... after date of delievery you can use after 1 year ... .. if you opened it .. then pack good with tap

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good
*by J***. on 29 March 2025*

Good product serves the purpose

### ⭐⭐⭐⭐ Okay
*by A***D on 3 September 2025*

Okay

### ⭐⭐⭐⭐⭐ Good
*by N***E on 7 February 2026*

Good

## Frequently Bought Together

- DOWSIL DOW Corning Glass Silicone Aquarium Sealant (300 ML, Rust Resistant)
- Spartan RT1 Royal Tools, Hand Caulking Gun, Heavy Duty Silicone Glue Gun | Steel Half-Open Sealant Gun (9 Inch, Blue)
- Wacker 121 Professional Aquarium, Fish Tank Silicone Sealant | Small to Large Tanks | Bonding, Gap Filling & Repair | Safe for Fish (310ml - Clear)

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**Shop now:** [https://www.desertcart.us/products/89079685-dow-corning-glass-silicone-aquarium-sealant-300-ml-rust-resistant](https://www.desertcart.us/products/89079685-dow-corning-glass-silicone-aquarium-sealant-300-ml-rust-resistant)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-07*