--- product_id: 527544813 title: "Fiberglass for Cement Mortar Concrete Reinforcement (19MM)-4lb" brand: "uptthow" price: "283.90 DT" currency: TND in_stock: true reviews_count: 13 category: "Uptthow" url: https://www.desertcart.tn/products/527544813-fiberglass-for-cement-mortar-concrete-reinforcement-19mm-4lb store_origin: TN region: Tunisia --- # Waterproof & impermeable cement mix 19mm fiber length for optimal reinforcement Enhanced impact & seismic resistance Fiberglass for Cement Mortar Concrete Reinforcement (19MM)-4lb **Brand:** uptthow **Price:** 283.90 DT **Availability:** ✅ In Stock ## Summary > 🧱 Reinforce your concrete game — build stronger, last longer! ## Quick Answers - **What is this?** Fiberglass for Cement Mortar Concrete Reinforcement (19MM)-4lb by uptthow - **How much does it cost?** 283.90 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/527544813-fiberglass-for-cement-mortar-concrete-reinforcement-19mm-4lb) ## 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 - • **Easy Pro Mix:** Simply mix sand, cement, and fiberglass with water; stir 30-60 seconds longer for max effect. - • **Precision Dosage:** Use 1 lb per cubic yard, or more in high-impact or freeze-thaw zones for ultimate protection. - • **Crackproof Confidence:** Fiberglass disperses evenly to prevent fine cracks, boosting mortar toughness. - • **Impact-Ready Strength:** High-strength fibers form a tight net, enhancing impact and seismic durability. - • **Water-Resistant Shield:** Dense fiber network seals cement, perfect for basements and exterior walls. ## Overview UPTTHOW’s 19mm fiberglass reinforcement (4lb) integrates seamlessly into cement mortar, delivering superior anti-cracking, waterproofing, and impact resistance. Ideal for residential projects requiring durable, long-lasting concrete in wet or high-stress environments. ## Description Please note that 4lb are packed in one bag Review: Home Concrete Slab With Fiberglass - I added this fiberglass to my concrete mix for a slab that was 3’W x 17’L x 4”D and it worked perfectly and made it super durable…. Review: Fiber mesh - Product works great ## 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 | B0BX8P982L | | Best Sellers Rank | #54,189 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #10 in Mortar Mix | | Brand | UPTTHOW | | Brand Name | UPTTHOW | | Color | White | | Customer Reviews | 4.7 out of 5 stars 386 Reviews | | Grade Rating | Residential | | Item Diameter | 0.75 inches | | Item Dimensions | 15.75 x 11.81 x 2 inches | | Item Form | Fiber | | Item Highlight | 6/9/19mm length options, 1/2/4 lb weight options, for anti-seepage and anti-cracking cement mix for building walls garden | | Item Shape | Honeycomb | | Item Thickness | 2 inches | | Item Weight | 4 pounds | | Item dimensions L x W x H | 15.75 x 11.81 x 2 inches | | Manufacturer | UPTTHOW | | Material | fiberglass | | Model Number | JIN-Fiberglass 19mm-4lb | | Number of Items | 4 | | Number of Packs | 1 | | Part Number | JIN-Fiberglass 19mm-4lb | | Shape | Honeycomb | | Unit Count | 64 Ounce | ## Product Details - **Brand:** UPTTHOW - **Color:** White - **Item Diameter:** 0.75 Inches - **Material:** fiberglass - **Shape:** Honeycomb ## Images ![Fiberglass for Cement Mortar Concrete Reinforcement (19MM)-4lb - Image 1](https://m.media-amazon.com/images/I/715nRghGIDL.jpg) ![Fiberglass for Cement Mortar Concrete Reinforcement (19MM)-4lb - Image 2](https://m.media-amazon.com/images/I/81XOIowNKOL.jpg) ![Fiberglass for Cement Mortar Concrete Reinforcement (19MM)-4lb - Image 3](https://m.media-amazon.com/images/I/81eubYW9sXL.jpg) ![Fiberglass for Cement Mortar Concrete Reinforcement (19MM)-4lb - Image 4](https://m.media-amazon.com/images/I/81HCtLzu8UL.jpg) ![Fiberglass for Cement Mortar Concrete Reinforcement (19MM)-4lb - Image 5](https://m.media-amazon.com/images/I/91vaUr-2FKL.jpg) ## Available Options This product comes in different **Size, Item Package Quantity** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Home Concrete Slab With Fiberglass *by R***E on July 13, 2026* I added this fiberglass to my concrete mix for a slab that was 3’W x 17’L x 4”D and it worked perfectly and made it super durable…. ### ⭐⭐⭐⭐⭐ Fiber mesh *by N***. on May 19, 2026* Product works great ### ⭐⭐⭐⭐⭐ Perfect addition to Bondo or fiberglass resin. *by S***V on October 18, 2025* Perfect for adding to Bondo for extra strength. As a taxidermist, I add it to Bondo to make thinner ears in the animals that I taxidermy. It does a great job. ## 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/PACK - 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.tn/products/527544813-fiberglass-for-cement-mortar-concrete-reinforcement-19mm-4lb](https://www.desertcart.tn/products/527544813-fiberglass-for-cement-mortar-concrete-reinforcement-19mm-4lb) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-16*