---
product_id: 643944473
title: "S420 Aquarium Silicone Sealant Clear - 1x10.1 Fl. Oz. Fish Tank Safe, Waterproof Bond to Glass, High Elasticity, Non-Toxic Aquarium Sealer for Freshwater & Saltwater | 1 Pack"
brand: "stanley"
price: "891491₫"
currency: VND
in_stock: true
reviews_count: 8
category: "Stanley"
url: https://www.desertcart.vn/products/643944473-s420-aquarium-silicone-sealant-clear-1x10-1-fl-oz-fish
store_origin: VN
region: Vietnam
---

# Non-toxic, fish & plant safe 100% solventless waterproof seal UV & chemical resistant S420 Aquarium Silicone Sealant Clear - 1x10.1 Fl. Oz. Fish Tank Safe, Waterproof Bond to Glass, High Elasticity, Non-Toxic Aquarium Sealer for Freshwater & Saltwater | 1 Pack

**Brand:** stanley
**Price:** 891491₫
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal Smart, Swim Safe – The Clear Choice for Aquatic Excellence!

## Quick Answers

- **What is this?** S420 Aquarium Silicone Sealant Clear - 1x10.1 Fl. Oz. Fish Tank Safe, Waterproof Bond to Glass, High Elasticity, Non-Toxic Aquarium Sealer for Freshwater & Saltwater | 1 Pack by stanley
- **How much does it cost?** 891491₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/643944473-s420-aquarium-silicone-sealant-clear-1x10-1-fl-oz-fish)

## Best For

- stanley enthusiasts

## Why This Product

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

## Key Features

- • **Built to Endure:** Resistant to UV rays and harsh chemicals, maintaining strength and elasticity even in extreme conditions.
- • **Versatile Sealing Power:** Perfect for glass, aluminum, windows, doors, and more—your all-in-one solution for professional-grade sealing.
- • **Fast-Track Repairs & Builds:** Rapid curing with atmospheric moisture means less downtime and quicker project completion.
- • **Safe Haven for Aquatic Life:** Non-toxic formula ensures your fish and plants thrive without harmful chemicals disrupting their ecosystem.
- • **Ultimate Aquarium Protection:** Crafted from 100% solventless silicone for a durable, flexible, and waterproof bond that lasts underwater.

## Overview

Stanley S420 Aquarium Silicone Sealant is a 10.1 fl. oz. clear, 100% solventless silicone designed for waterproof, flexible, and non-toxic sealing in freshwater and saltwater aquariums. It offers UV and chemical resistance, rapid curing, and versatile adhesion to glass and aluminum, ensuring a durable, fish-safe bond that supports thriving aquatic environments.

## Description

Stanley S420 Aquarium Silicone Sealant Clear - 1x10.1 Fl. Oz. Fish Tank Safe, Waterproof Bond to Glass, High Elasticity, Non-Toxic Aquarium Sealer for Freshwater & Saltwater | 1 Pack: desertcart.com: Industrial & Scientific

Review: Works well - Works great.
Review: Good product - Works well

## Features

- 100% Solventless Silicone - This sealant is formulated from 100% solventless silicone, ensuring a robust and durable seal that maintains flexibility over time. It’s perfect for aquariums, providing a secure and reliable bond that withstands the pressures of underwater environments and various conditions without degradation.
- Non-Toxic to Fish and Plants - Specifically designed to be safe for all aquatic life, this silicone sealant is non-toxic, making it ideal for use in both freshwater and saltwater aquariums. It ensures that fish, plants, and other aquatic organisms remain healthy and unaffected by the sealant, promoting a thriving ecosystem.
- Resistant to Water, UV and Chemicals - Engineered to resist water, ultraviolet light, and many chemicals, this sealant delivers exceptional longevity and performance. It remains effective in various environmental conditions, including continuous underwater use and exposure to harsh sunlight, without losing its adhesive properties or flexibility.
- Rapid Curing with Atmospheric Moisture - This one-component sealant cures quickly upon exposure to atmospheric moisture, providing a fast and efficient bonding solution. Its rapid curing process ensures that the sealant sets quickly, allowing for immediate use and minimal downtime in both construction and repair projects
- Versatile Application for Various Surfaces - This versatile silicone sealant is suitable for a wide range of applications, including the construction and repair of aquariums, glazing on aluminum frames, shop displays, and sealing windows and doors. It adheres well to glass, aluminum, and many other surfaces, making it an essential tool for various sealing needs.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D6NBDPJF |
| Best Sellers Rank | #296,993 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #459 in Silicone Adhesives |
| Brand | STANLEY |
| Color | Clear |
| Date First Available | June 10, 2024 |
| Item Form | Liquid |
| Item Weight | 12.6 ounces |
| Liquid Volume | 10.1 Fluid Ounces |
| Manufacturer | StanleyChem |
| Material | Silicone |
| Number of Items | 1 |
| Package Dimensions | 9.02 x 2.24 x 2.24 inches |
| Surface Recommendation | Window, Door, Walls |
| Tensile Strength | 200 Pounds Per Square Inch |
| UPC | 810125460128 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** STANLEY
- **Color:** Clear
- **Item Form:** Liquid
- **Item Weight:** 0.36 Kilograms
- **Liquid Volume:** 10.1 Fluid Ounces

## Images

![S420 Aquarium Silicone Sealant Clear - 1x10.1 Fl. Oz. Fish Tank Safe, Waterproof Bond to Glass, High Elasticity, Non-Toxic Aquarium Sealer for Freshwater & Saltwater | 1 Pack - Image 1](https://m.media-amazon.com/images/I/71sHngU+mxL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works well
*by R***R on November 7, 2025*

Works great.

### ⭐⭐⭐⭐⭐ Good product
*by T***A on September 10, 2025*

Works well

### ⭐ Lacking quality for the namesake
*by A***A on January 16, 2026*

Did not hold at all! Had to redo project

## Frequently Bought Together

- Stanley Aquarium Silicone Sealant Clear - 2x10.1 Fl. Oz. Fish Tank Safe, Waterproof Bond to Glass, High Elasticity, Non-Toxic Aquarium Sealer for Freshwater & Saltwater | 1 Pack.
- GREAT STUFF 99112849 Smart Dispenser Pond & Stone, 12 oz, Black

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**Shop now:** [https://www.desertcart.vn/products/643944473-s420-aquarium-silicone-sealant-clear-1x10-1-fl-oz-fish](https://www.desertcart.vn/products/643944473-s420-aquarium-silicone-sealant-clear-1x10-1-fl-oz-fish)

---

*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-23*