--- product_id: 373253480 title: "UPTTHOW Fiberglass for Cement Mortar Concrete Reinforcement Anti-Seepage and ..." brand: "uptthow" price: "$41.05" currency: USD in_stock: true category: "Uptthow" url: https://www.desertcart.us/products/373253480-uptthow-fiberglass-for-cement-mortar-concrete-reinforcement-anti-seepage store_origin: US region: United States of America --- # High-impact & seismic resistance Waterproof & impermeable cement mix 19mm fiber length for optimal reinforcement UPTTHOW Fiberglass for Cement Mortar Concrete Reinforcement Anti-Seepage and ... **Brand:** uptthow **Price:** $41.05 **Availability:** ✅ In Stock ## Summary > 🧱 Reinforce your concrete like a pro — because cracks are so last season! ## Quick Answers - **What is this?** UPTTHOW Fiberglass for Cement Mortar Concrete Reinforcement Anti-Seepage and ... by uptthow - **How much does it cost?** $41.05 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/373253480-uptthow-fiberglass-for-cement-mortar-concrete-reinforcement-anti-seepage) ## Best For - uptthow enthusiasts ## Why This Product - Trusted uptthow brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Crack-Defying Toughness:** Fiberglass fibers disperse irregularly to prevent fine cracks and boost mortar durability. - • **Precision Mixing Formula:** Easy integration with sand and cement; just add water and stir 30-60 seconds longer for max effect. - • **Ultimate Waterproof Shield:** Dense fiber network seals cement, perfect for basements, ponds, and exterior walls. - • **Impact & Seismic Powerhouse:** High-strength filaments form a tight net, enhancing impact resistance and structural integrity. - • **Tailored Dosage for Peak Performance:** Use 1 lb per cubic yard, with extra for high-impact or freeze-thaw zones to future-proof your build. ## Overview UPTTHOW's 19mm fiberglass reinforcement enhances cement mortar by preventing cracks, boosting waterproofing, and improving impact resistance. Ideal for wet and high-stress environments, this 1lb pack integrates seamlessly into your mix for stronger, longer-lasting concrete structures. ## Description UPTTHOW Fiberglass for Cement Mortar Concrete Reinforcement (19MM)-1lb | 6/9/19mm length option, 1/2/4 lb weight options, for anti-seepage and anti-cracking cement mix for building walls garden: desertcart.com: Tools & Home Improvement ## Features - Anti-cracking: Mixing fiberglass and mortar together, the irregular distribution of fiberglass in the mortar enhances the toughness of mortar, and inhibits the formation of fine cracks - Waterproof and Impermeable: A large number of fiber filaments increase the density of cement, which can effectively solve the problem of penetration. It is very suitable for wet place such as basements, pond, Exterior wall - Impact Resistance: High-strength fiber filaments are attached to each other as a dense net to hold the cement tightly. It can effectively enhance the impact and seismic performance of cement - How to Use: Evenly mix sand, cement and fiberglass together, then add an appropriate amount of water, and finally stir (the stiring time is 30-60 seconds longer than without fiberglass) - Dosage: Use 1 lb. (1 pkg) per cubic yard (27 cubic feet) of concrete. You can add a little more in the area with strong impact or severe freeze-thaw ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B099NDS6V2 | | Best Sellers Rank | #52,584 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,871 in Building Materials | | Brand Name | UPTTHOW | | Color | White | | Customer Reviews | 4.7 4.7 out of 5 stars (387) | | Grade Rating | Commercial | | Item Diameter | 19 millimeters | | Item Dimensions | 9.84 x 7.87 x 47244.12 inches | | Item Form | Roll | | Item Highlight | 6/9/19mm length option, 1/2/4 lb weight options, for anti-seepage and anti-cracking cement mix for building walls garden | | Item Shape | Fluffy | | Item Thickness | 0.75 inches | | Item Weight | 16 ounces | | Manufacturer | UPTTHOW | | Material | Fiberglass | | Model Number | Fiberglass 19mm-1lb | | Number of Items | 1 | | Number of Packs | 1 | | Part Number | Fiberglass 19mm-1lb | | Unit Count | 16 Ounce | ## Product Details - **Brand:** UPTTHOW - **Color:** White - **Item dimensions L x W x H:** 9.84 x 7.87 x 47244.12 inches - **Material:** Fiberglass - **Shape:** Fluffy ## Images ![UPTTHOW Fiberglass for Cement Mortar Concrete Reinforcement Anti-Seepage and ... - Image 1](https://m.media-amazon.com/images/I/41UqDnxNXWL.jpg) ![UPTTHOW Fiberglass for Cement Mortar Concrete Reinforcement Anti-Seepage and ... - Image 2](https://m.media-amazon.com/images/I/51fwcMz3QZL.jpg) ![UPTTHOW Fiberglass for Cement Mortar Concrete Reinforcement Anti-Seepage and ... - Image 3](https://m.media-amazon.com/images/I/51UM3XhncDL.jpg) ![UPTTHOW Fiberglass for Cement Mortar Concrete Reinforcement Anti-Seepage and ... - Image 4](https://m.media-amazon.com/images/I/51eHa5fh8ZL.jpg) ![UPTTHOW Fiberglass for Cement Mortar Concrete Reinforcement Anti-Seepage and ... - Image 5](https://m.media-amazon.com/images/I/51rcNO1mrdL.jpg) ## Available Options This product comes in different **Size, Item Package Quantity** options. ## Questions & Answers **Q: Are the fibers AR fiberglass (alkali resistant) ?** A: I made hypertufa pots with the fibers in the mixture since they are glass fibersI believe they are alkali resistant **Q: Will this work with self leveling cement?** A: First if your using self leveling cement you most likely are and should be covering it with tile or some type flooring. It should not really need the fiberglass fibers for strength since it is getting covered up. It is possible it will work but don't use a heavy amount. I would try a small test spot on a piece of plywood or somewhere. See what other answers you get back also, or ask the seller too ## Frequently Bought Together - UPTTHOW Fiberglass for Cement Mortar Concrete Reinforcement Anti-Seepage and Anti-Cracking Cement Mix for Building Walls Garden Floor 3/4"(19MM)-1lb - Alpha Pro Fluidizer 1 lb - Dry superplasticizer for Any Concrete Countertop Mix - SIKA - SikaLatex R - Concrete Adhesive Glue, White - Admix for Portland-Cement Mortar/Concrete - Resistant to Freezing and thawing Damage - 1-Gallon --- ## 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/373253480-uptthow-fiberglass-for-cement-mortar-concrete-reinforcement-anti-seepage](https://www.desertcart.us/products/373253480-uptthow-fiberglass-for-cement-mortar-concrete-reinforcement-anti-seepage) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-09-14*