---
product_id: 670698580
title: "Stanley S420 Aquarium Silicone Sealant Clear - 2x10.1 Fl. Oz. Fish Tank Safe, Waterproof Bond to Glass, High Elasticity, Non-Toxic Aquarium Sealer for Freshwater & Saltwater | 2 Pack"
brand: "stanley"
price: "21344CFA"
currency: XOF
in_stock: true
category: "Stanley"
url: https://www.desertcart.sn/products/670698580-stanley-s420-aquarium-silicone-sealant-clear-2x10-1-fl-oz
store_origin: SN
region: Senegal
---

# fast 2-hour full cure time non-toxic, fish-safe formula 100% solventless waterproof seal Stanley S420 Aquarium Silicone Sealant Clear - 2x10.1 Fl. Oz. Fish Tank Safe, Waterproof Bond to Glass, High Elasticity, Non-Toxic Aquarium Sealer for Freshwater & Saltwater | 2 Pack

**Brand:** stanley
**Price:** 21344CFA
**Availability:** ✅ In Stock

## Summary

> 🐟 Seal the deal with Stanley: Clear, safe, and fast for flawless aquariums!

## Quick Answers

- **What is this?** Stanley S420 Aquarium Silicone Sealant Clear - 2x10.1 Fl. Oz. Fish Tank Safe, Waterproof Bond to Glass, High Elasticity, Non-Toxic Aquarium Sealer for Freshwater & Saltwater | 2 Pack by stanley
- **How much does it cost?** 21344CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/670698580-stanley-s420-aquarium-silicone-sealant-clear-2x10-1-fl-oz)

## 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

- • **Sun & Chemical Warrior:** UV and chemical resistant for long-lasting performance, no matter the environment.
- • **Versatile Adhesion Power:** Perfect for glass, aluminum, and more—ideal for aquariums, windows, and display cases alike.
- • **Unbreakable Underwater Bond:** 100% solventless silicone ensures a flexible, durable seal that lasts through every splash and dive.
- • **Aquarium-Safe & Eco-Friendly:** Non-toxic formula keeps your aquatic friends thriving in both freshwater and saltwater habitats.
- • **Speedy Seal, Minimal Downtime:** Rapid curing with atmospheric moisture means your tank is ready to go in just 2 hours.

## Overview

Stanley S420 Aquarium Silicone Sealant is a clear, 100% solventless silicone designed for durable, waterproof bonding to glass and aluminum. Non-toxic and safe for all aquatic life, it cures rapidly in 2 hours and resists UV and chemicals, making it perfect for freshwater and saltwater aquariums as well as versatile sealing applications.

## Description

Stanley S420 Aquarium Silicone Sealant Clear - 2x10.1 Fl. Oz. Fish Tank Safe, Waterproof Bond to Glass, High Elasticity, Non-Toxic Aquarium Sealer for Freshwater & Saltwater | 2 Pack: desertcart.com: Industrial & Scientific

## 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 | B0D6Z9MJBC |
| Best Sellers Rank | #156,518 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #267 in Silicone Adhesives |
| Brand Name | STANLEY |
| Color | Clear |
| Compatible Material | Glass |
| Container Type | Tube |
| Customer Reviews | 3.8 3.8 out of 5 stars (14) |
| Full Cure Time | 2 hours |
| Item Form | Liquid |
| Item Package Quantity | 2 |
| Manufacturer | StanleyChem |
| Material Type | Silicone |
| Model | S420 |
| Number of Pieces | 2 |
| Other Special Features of the Product | Fast Drying, Non Toxic, Waterproof |
| Part Number | SXSE1092US-AquarSlc |
| Specific Uses For Product | Aquarium, Glazing, Shop Displays, Windows and Doors |
| UPC | 810125469169 |
| Unit Count | 2 Count |
| Volume | 10.1 fluid ounces |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** STANLEY
- **Item Form:** Liquid
- **Material:** Silicone
- **Special Feature:** Fast Drying, Non Toxic, Waterproof
- **Specific Uses For Product:** Aquarium, Glazing, Shop Displays, Windows and Doors

## Images

![Stanley S420 Aquarium Silicone Sealant Clear - 2x10.1 Fl. Oz. Fish Tank Safe, Waterproof Bond to Glass, High Elasticity, Non-Toxic Aquarium Sealer for Freshwater & Saltwater | 2 Pack - Image 1](https://m.media-amazon.com/images/I/51MXwZ2dnaL.jpg)
![Stanley S420 Aquarium Silicone Sealant Clear - 2x10.1 Fl. Oz. Fish Tank Safe, Waterproof Bond to Glass, High Elasticity, Non-Toxic Aquarium Sealer for Freshwater & Saltwater | 2 Pack - Image 2](https://m.media-amazon.com/images/I/51Jfvg60cEL.jpg)
![Stanley S420 Aquarium Silicone Sealant Clear - 2x10.1 Fl. Oz. Fish Tank Safe, Waterproof Bond to Glass, High Elasticity, Non-Toxic Aquarium Sealer for Freshwater & Saltwater | 2 Pack - Image 3](https://m.media-amazon.com/images/I/413nux8V24L.jpg)
![Stanley S420 Aquarium Silicone Sealant Clear - 2x10.1 Fl. Oz. Fish Tank Safe, Waterproof Bond to Glass, High Elasticity, Non-Toxic Aquarium Sealer for Freshwater & Saltwater | 2 Pack - Image 4](https://m.media-amazon.com/images/I/51FZK57EWAL.jpg)
![Stanley S420 Aquarium Silicone Sealant Clear - 2x10.1 Fl. Oz. Fish Tank Safe, Waterproof Bond to Glass, High Elasticity, Non-Toxic Aquarium Sealer for Freshwater & Saltwater | 2 Pack - Image 5](https://m.media-amazon.com/images/I/51kyldH1TjL.jpg)

## Frequently Bought Together

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

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.sn/products/670698580-stanley-s420-aquarium-silicone-sealant-clear-2x10-1-fl-oz](https://www.desertcart.sn/products/670698580-stanley-s420-aquarium-silicone-sealant-clear-2x10-1-fl-oz)

---

*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-08-24*