--- product_id: 672965288 title: "Black BioSeal 100% Silicone Sealant Caulk General Purpose, Waterproof and No Odor 10.1 Ounce Cartridge -Black (1)" brand: "zered" price: "$9.17" currency: USD in_stock: false reviews_count: 5 url: https://www.desertcart.us/products/672965288-black-bioseal-100-silicone-sealant-caulk-general-purpose-waterproof-no store_origin: US region: United States of America --- # 100% Waterproof Seal 30-Min Water-Ready 50-Year Durability Black BioSeal 100% Silicone Sealant Caulk General Purpose, Waterproof and No Odor 10.1 Ounce Cartridge -Black (1) **Brand:** zered **Price:** $9.17 **Availability:** ❌ Out of Stock ## Summary > 🖤 Seal it once, seal it right—Black BioSeal means business. ## Quick Answers - **What is this?** Black BioSeal 100% Silicone Sealant Caulk General Purpose, Waterproof and No Odor 10.1 Ounce Cartridge -Black (1) by zered - **How much does it cost?** $9.17 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/672965288-black-bioseal-100-silicone-sealant-caulk-general-purpose-waterproof-no) ## 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:** No unpleasant smells, making your workspace comfortable and professional. - • **Built to Last 50 Years:** No yellowing, cracking, or shrinking—maintains sleek black finish over decades. - • **Fast-Track Your Projects:** Ready for water exposure in just 30 minutes—no downtime, no delays. - • **Versatile Surface Bonding:** Adheres flawlessly to marble, tile, glass, vinyl, aluminum, and more without primer. - • **Ultimate Waterproof Defense:** Seals out water completely for lasting protection in wet environments. ## Overview Black BioSeal is a premium 100% silicone sealant caulk designed for general-purpose waterproof sealing. It cures rapidly to form a durable, shrink- and crack-proof bond that lasts up to 50 years without yellowing or odor. Ideal for multiple surfaces including tile, glass, and metal, it’s ready for water exposure in just 30 minutes, making it the go-to choice for professionals demanding fast, reliable, and clean sealing solutions. ## Description BioSeal General Purpose Silicone Caulk provides excellent adhesion to cultured marble, tile, glass, vinyl, aluminum, and sheet metal without the need for a primer. The product is engineered to cure rapidly when exposed to atmospheric moisture, to form a durable tight bond that contractors and installers count on. 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. Review: Works great - Thank you ## Features - Causes serious eye irritation. - May cause an allergic skin reaction. - 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 | | Brand | ZERED | | Colour | Black | | Customer Reviews | 4.6 out of 5 stars 64 Reviews | | Full Cure Time | 30 Minutes | | Full cure time | 30 Minutes | | Global Trade Identification Number | 00196852472208 | | Included Components | 100% RTV Silicone | | Initial Hardening Time | 30 Minutes | | Initial hardening time | 30 Minutes | | Item Form | Liquid | | Item Weight | 10.1 Ounces | | Item weight | 10.1 Ounces | | Liquid Volume | 10.1 Fluid Ounces | | Liquid volume | 10.1 Fluid Ounces | | Manufacturer | zered | | Manufacturer Part Number | Bioseal-GP-BK | | Material | Silicone | | Number of Items | 1 | | Surface Recommendation | Tile | | Unit Count | 1.0 count | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** ZERED - **Colour:** Black - **Full cure time:** 30 Minutes - **Item weight:** 10.1 Ounces - **Liquid volume:** 10.1 Fluid Ounces ## Images ![Black BioSeal 100% Silicone Sealant Caulk General Purpose, Waterproof and No Odor 10.1 Ounce Cartridge -Black (1) - Image 1](https://m.media-amazon.com/images/I/61jfWSPMMQL.jpg) ![Black BioSeal 100% Silicone Sealant Caulk General Purpose, Waterproof and No Odor 10.1 Ounce Cartridge -Black (1) - Image 2](https://m.media-amazon.com/images/I/71ix6IXWmyL.jpg) ![Black BioSeal 100% Silicone Sealant Caulk General Purpose, Waterproof and No Odor 10.1 Ounce Cartridge -Black (1) - Image 3](https://m.media-amazon.com/images/I/81vq3HSlhGL.jpg) ![Black BioSeal 100% Silicone Sealant Caulk General Purpose, Waterproof and No Odor 10.1 Ounce Cartridge -Black (1) - Image 4](https://m.media-amazon.com/images/I/61TFn4uCVzS.jpg) ![Black BioSeal 100% Silicone Sealant Caulk General Purpose, Waterproof and No Odor 10.1 Ounce Cartridge -Black (1) - Image 5](https://m.media-amazon.com/images/I/71HGHd4vjXS.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great product for boats *by J***E on 29 July 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. ### ⭐⭐⭐⭐⭐ Works great *by J***E on 3 March 2026* Thank you ### ⭐⭐⭐⭐⭐ Seals *by N***E on 9 March 2026* If you need black silicone this is it! Slight shrinking but looks great. Price wasn't terrible and it was packaged nicely. ## 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.us/products/672965288-black-bioseal-100-silicone-sealant-caulk-general-purpose-waterproof-no](https://www.desertcart.us/products/672965288-black-bioseal-100-silicone-sealant-caulk-general-purpose-waterproof-no) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-06-08*