--- product_id: 538841897 title: "General Purpose BLACK" brand: "zered" price: "€ 21.73" currency: EUR in_stock: true reviews_count: 8 category: "Zered" url: https://www.desertcart.it/products/538841897-general-purpose-black store_origin: IT region: Italy --- # 100% Waterproof Seal 30-Min Water-Ready 50 Years Durability General Purpose BLACK **Brand:** zered **Price:** € 21.73 **Availability:** ✅ In Stock ## Summary > 🖤 Seal it Black, Seal it Right — Waterproof Confidence That Lasts 50 Years! ## Quick Answers - **What is this?** General Purpose BLACK by zered - **How much does it cost?** € 21.73 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/538841897-general-purpose-black) ## Best For - zered enthusiasts ## Why This Product - Trusted zered brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Odor-Free Application:** Zero smell formula means no need to open windows or disrupt your workspace comfort. - • **Fast 30-Minute Cure Time:** Ready for water exposure in just half an hour—no long waits, no project delays. - • **Professional-Grade Adhesion:** Bonds strongly to tile, glass, metal, marble, and more—trusted by contractors and fabricators alike. - • **Ultimate Waterproof Protection:** Seals flawlessly against water damage indoors and outdoors, perfect for kitchens, bathrooms, and boats. - • **Shrink & Crack-Proof Flexibility:** Withstands extreme temperature changes without cracking or yellowing for decades. ## Overview ZERED General Purpose BLACK is a premium 100% silicone caulk offering a 100% waterproof, odorless seal that cures in 30 minutes. Engineered for durability, it resists yellowing, shrinking, and cracking for up to 50 years. Ideal for professional contractors and DIYers, it bonds securely to a wide range of surfaces including tile, glass, metal, and stone, making it the go-to choice for kitchens, bathrooms, boats, and outdoor projects. ## Description Product description No Odor, period. Can you imagine silicone caulk has no smell at all so you don't need to open windows and doors? Well, BioSeal Kitchen and Bath and General Purpose Silicone don't have any odor. Your customers will love it. And we bet you too. No Color Change No color change. BioSeal Kitchen and Bath silicone and General Purpose silicone won't change yellow. 100% Waterproof BioSeal Kitchen and Bath and General Purpose silicone offer you waterproof so you can use both to outside and inside. They don't have any smell at all. 50 Years Durability BioSeal Kitchen and Bath and General Purpose silicone maintains flexibility after applied. 50 years durability. Door and Metal Provides strong adhesion to cultured marble, tile, glass, vinyl, aluminum, and even sheet metal. BioSeal Silicone is suitable for contractors and stone fabricators. • Glass and Window • Bathroom & Kitchen-top • Long tip 4-1/2 inch • For Contractors and Stone Fabricators • Marble/Granite/Quartz/Tiles/Ceramic/Glass Clean after all You never want this happening to your bathtub and kitchen. BioSeal Silicone provides you it will never happen to your bathtub. 50 Years durability No Odor. No Smell All BioSeal Silicone Caulk products has NO ODOR. Not just odor, It doesn't have any smell. Imagine that you can have advantages from BioSeal Silicone. • You don't need to open windows and doors for hours in hot or cold seasons. • No more headache SOFT Flexibility After dry out, BioSeal Silicone caulk maintains its flexibility. Soft but strong density enough to adhesive glass and shower doors together. BioSeal Silicone caulk is flexible so it can bear vibrating from materials such as tables, sinks, and even sheet of metals too. Review: Excellent product, used in kitchen. - I bought this in black to seal between new countertops and the tiled backsplash I installed in my kitchen. I’ve done a lot of home renovation over the years and I was impressed with how this product worked. Very thick but easily workable. Dried to a matte black so it blended in with my black grout and countertops quite well. Clean up was easy with isopropyl alcohol. Normally I use the silicone sealers from the home improvement stores but I found this stuff was a lot easier to work with, especially the clean up end. It does give off an odor but gone once dried. I’ll be using it again in the future. Review: Great product for boats - Works well for boat. Fills in holes and seals well great value. Has a slight smell but is not bad. Easy to put on with a basic caulk gun. ## Features - 100% WATERPROOF: This 100% silicone formula offers ultimate protection from water damage, providing a reliable seal in areas prone to consistent water exposure - 50 Years PRODUCT PROTECTION: No Yellow No Color Change - No Odor = No Smell - 30-MINUTE WATER-READY: Ready for water exposure in as little as 30 minutes - SHRINK & CRACK-PROOF: Withstands extreme expansion or contraction associated with temperature fluctuations ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BFCHRMFB | | Best Sellers Rank | #129,757 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #151 in Silicone Caulk | | Brand | ZERED | | Brand Name | ZERED | | Color | Black | | Customer Reviews | 4.6 out of 5 stars 120 Reviews | | Global Trade Identification Number | 00196852472208 | | Included Components | 100% RTV Silicone | | Initial Hardening Time | 30 Minutes | | Item Form | Liquid | | Item Weight | 10.1 Ounces | | Liquid Volume | 10.1 Fluid Ounces | | Manufacturer | zered | | Material Type | Silicone | | Number of Items | 1 | | Part Number | Bioseal-GP-BK | | Surface Recommendation | Tile | | Unit Count | 1.0 Count | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** ZERED - **Color:** Black - **Initial Hardening Time:** 30 Minutes - **Item Weight:** 10.1 Ounces - **Liquid Volume:** 10.1 Fluid Ounces ## Images ![General Purpose BLACK - Image 1](https://m.media-amazon.com/images/I/61jfWSPMMQL.jpg) ![General Purpose BLACK - Image 2](https://m.media-amazon.com/images/I/71ix6IXWmyL.jpg) ![General Purpose BLACK - Image 3](https://m.media-amazon.com/images/I/81vq3HSlhGL.jpg) ![General Purpose BLACK - Image 4](https://m.media-amazon.com/images/I/61TFn4uCVzS.jpg) ![General Purpose BLACK - Image 5](https://m.media-amazon.com/images/I/71HGHd4vjXS.jpg) ## Available Options This product comes in different **Number Of Items** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent product, used in kitchen. *by H***R on October 22, 2025* I bought this in black to seal between new countertops and the tiled backsplash I installed in my kitchen. I’ve done a lot of home renovation over the years and I was impressed with how this product worked. Very thick but easily workable. Dried to a matte black so it blended in with my black grout and countertops quite well. Clean up was easy with isopropyl alcohol. Normally I use the silicone sealers from the home improvement stores but I found this stuff was a lot easier to work with, especially the clean up end. It does give off an odor but gone once dried. I’ll be using it again in the future. ### ⭐⭐⭐⭐⭐ Great product for boats *by J***E on July 29, 2025* Works well for boat. Fills in holes and seals well great value. Has a slight smell but is not bad. Easy to put on with a basic caulk gun. ### ⭐⭐⭐⭐⭐ Great product for the RV *by 2***S on August 1, 2025* Easy to use and easy clean up with mineral spirits. I want to thank my friends over at RV TrueTopper for recommending this product. ## Frequently Bought Together - Black BioSeal 100% Silicone Sealant Caulk General Purpose, Waterproof and No Odor 10.1 Ounce Cartridge -Black (1) - Clear BioSeal 100% Silicone Sealant Caulk General Purpose, Waterproof and Low Odor 10.1 Ounce Cartridge, Clear, (Pack of 1) - Bates- Caulking Gun, 10:1 Thrust Ratio, Orange, Caulking Tool Gun, Caulk Gun No Drip, Hand Caulking Guns, Silicone Gun, Caulking Gun Tool, No Drip Caulk Gun, Caulk Guns, Caulking Gun Dripless --- ## 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.it/products/538841897-general-purpose-black](https://www.desertcart.it/products/538841897-general-purpose-black) --- *Product available on Desertcart Italy* *Store origin: IT* *Last updated: 2026-06-23*