--- product_id: 662629012 title: "Stanley S420 Aquarium Silicone Sealant Clear - 12x10.1 Fl. Oz. Fish Tank Safe, Waterproof Bond to Glass, High Elasticity, Non-Toxic Aquarium Sealer for Freshwater & Saltwater | 12 Pack" brand: "stanley" price: "¥35452" currency: JPY in_stock: true category: "Stanley" url: https://www.desertcart.jp/products/662629012-stanley-s420-aquarium-silicone-sealant-clear-12x10-1-fl-oz store_origin: JP region: Japan --- # Non-toxic, fish & plant safe 100% solventless waterproof seal UV & chemical resistant durability Stanley S420 Aquarium Silicone Sealant Clear - 12x10.1 Fl. Oz. Fish Tank Safe, Waterproof Bond to Glass, High Elasticity, Non-Toxic Aquarium Sealer for Freshwater & Saltwater | 12 Pack **Brand:** stanley **Price:** ¥35452 **Availability:** ✅ In Stock ## Summary > 🔗 Seal the deal with confidence—where durability meets aquatic safety! ## Quick Answers - **What is this?** Stanley S420 Aquarium Silicone Sealant Clear - 12x10.1 Fl. Oz. Fish Tank Safe, Waterproof Bond to Glass, High Elasticity, Non-Toxic Aquarium Sealer for Freshwater & Saltwater | 12 Pack by stanley - **How much does it cost?** ¥35452 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/662629012-stanley-s420-aquarium-silicone-sealant-clear-12x10-1-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 - • **Fast-Track Repairs:** Rapid curing on contact with moisture means less downtime and quicker aquarium readiness. - • **Aquarium-Grade Safety:** Non-toxic formula keeps your aquatic ecosystem thriving without compromise. - • **Multi-Surface Mastery:** Perfect adhesion on glass, aluminum, and more—versatility that fits all your sealing needs. - • **Sun & Chemical Shield:** Engineered to resist UV rays and harsh chemicals, maintaining integrity in any environment. - • **Ultimate Waterproof Bond:** 100% solventless silicone ensures a flexible, long-lasting seal that withstands underwater pressure. ## Overview Stanley S420 Aquarium Silicone Sealant Clear is a premium, 100% solventless silicone designed for secure, flexible, and waterproof bonding in freshwater and saltwater aquariums. Non-toxic to fish and plants, it offers rapid curing, UV and chemical resistance, and versatile adhesion on glass and aluminum surfaces, making it the go-to sealant for professional-grade aquarium construction and repairs. ## Description Stanley S420 Aquarium Silicone Sealant Clear - 12x10.1 Fl. Oz. Fish Tank Safe, Waterproof Bond to Glass, High Elasticity, Non-Toxic Aquarium Sealer for Freshwater & Saltwater | 12 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 | B0D6Z9NXG4 | | Best Sellers Rank | #393,038 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #558 in Silicone Adhesives | | Brand Name | STANLEY | | Color | Clear | | Compatible Material | Glass | | Customer Reviews | 4.5 4.5 out of 5 stars (29) | | Included Components | 12 Silicone Sealant Cartridge | | Item Form | Liquid | | Manufacturer | StanleyChem | | Material Type | Silicone | | Number of Items | 12 | | Number of Packs | 12 | | Part Number | SXSE1092US-AquarSlc | | Surface Recommendation | Window, Door, Walls | | UPC | 810125461088 | | Unit Count | 121.2 Ounce | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** STANLEY - **Item Form:** Liquid - **Material:** Silicone - **UPC:** 810125461088 - **Water Resistance Level:** Waterproof ## Images ![Stanley S420 Aquarium Silicone Sealant Clear - 12x10.1 Fl. Oz. Fish Tank Safe, Waterproof Bond to Glass, High Elasticity, Non-Toxic Aquarium Sealer for Freshwater & Saltwater | 12 Pack - Image 1](https://m.media-amazon.com/images/I/41ZqsK5GFvL.jpg) ![Stanley S420 Aquarium Silicone Sealant Clear - 12x10.1 Fl. Oz. Fish Tank Safe, Waterproof Bond to Glass, High Elasticity, Non-Toxic Aquarium Sealer for Freshwater & Saltwater | 12 Pack - Image 2](https://m.media-amazon.com/images/I/51Jfvg60cEL.jpg) ![Stanley S420 Aquarium Silicone Sealant Clear - 12x10.1 Fl. Oz. Fish Tank Safe, Waterproof Bond to Glass, High Elasticity, Non-Toxic Aquarium Sealer for Freshwater & Saltwater | 12 Pack - Image 3](https://m.media-amazon.com/images/I/413nux8V24L.jpg) ![Stanley S420 Aquarium Silicone Sealant Clear - 12x10.1 Fl. Oz. Fish Tank Safe, Waterproof Bond to Glass, High Elasticity, Non-Toxic Aquarium Sealer for Freshwater & Saltwater | 12 Pack - Image 4](https://m.media-amazon.com/images/I/51FZK57EWAL.jpg) ![Stanley S420 Aquarium Silicone Sealant Clear - 12x10.1 Fl. Oz. Fish Tank Safe, Waterproof Bond to Glass, High Elasticity, Non-Toxic Aquarium Sealer for Freshwater & Saltwater | 12 Pack - Image 5](https://m.media-amazon.com/images/I/51kyldH1TjL.jpg) ## Available Options This product comes in different **Color, Size** options. --- ## 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.jp/products/662629012-stanley-s420-aquarium-silicone-sealant-clear-12x10-1-fl-oz](https://www.desertcart.jp/products/662629012-stanley-s420-aquarium-silicone-sealant-clear-12x10-1-fl-oz) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-15*