---
product_id: 375426866
title: "Fiberglass for Cement Mortar Concrete Reinforcement (19MM)-2lb"
brand: "uptthow"
price: "$68.30"
currency: USD
in_stock: true
reviews_count: 13
category: "Uptthow"
url: https://www.desertcart.us/products/375426866-fiberglass-for-cement-mortar-concrete-reinforcement-19mm-2lb
store_origin: US
region: United States of America
---

# Waterproof & impermeable cement mix 19mm fiber length for optimal reinforcement 2lb pack for precise dosage control Fiberglass for Cement Mortar Concrete Reinforcement (19MM)-2lb

**Brand:** uptthow
**Price:** $68.30
**Availability:** ✅ In Stock

## Summary

> 🧱 Reinforce your build, resist the cracks, and own durability like a pro!

## Quick Answers

- **What is this?** Fiberglass for Cement Mortar Concrete Reinforcement (19MM)-2lb by uptthow
- **How much does it cost?** $68.30 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/375426866-fiberglass-for-cement-mortar-concrete-reinforcement-19mm-2lb)

## 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 blend with sand and cement; just 30-60 seconds extra stirring for superior results.
- • **Tailored Dosage:** Use 1 lb per cubic yard, with flexibility to increase for high-impact or freeze-thaw zones.
- • **Crackproof Confidence:** Fiberglass fibers disperse evenly to prevent fine cracks, boosting mortar toughness.
- • **Impact-Ready Strength:** High-strength filaments form a resilient mesh enhancing impact and seismic resistance.
- • **Water-Resistant Wonder:** Dense fiber network seals cement, perfect for basements and exterior walls prone to moisture.

## Overview

UPTTHOW's 19mm Fiberglass for Cement Mortar Concrete Reinforcement is a 2lb commercial-grade additive designed to enhance mortar toughness, waterproofing, and impact resistance. Ideal for wet and high-stress environments, it integrates seamlessly into cement mixes to prevent cracking and improve structural durability.

## Description

UPTTHOW Fiberglass for Cement Mortar Concrete Reinforcement (19MM)-2lb | 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

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 | B099PBY82Y |
| Best Sellers Rank | #66,779 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #37 in Concrete |
| Brand | UPTTHOW |
| Brand Name | UPTTHOW |
| Color | White |
| Customer Reviews | 4.7 out of 5 stars 387 Reviews |
| Grade Rating | Commercial |
| Item Diameter | 19 millimeters |
| Item Dimensions | 9.84 x 7.87 x 1.2 inches |
| Item Form | Fiber |
| 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 | Irregular Shape |
| Item Thickness | 1.2 inches |
| Item Weight | 2 pounds |
| Item dimensions L x W x H | 9.84 x 7.87 x 1.2 inches |
| Manufacturer | UPTTHOW |
| Material | Fiberglass |
| Model Number | Fiberglass 19mm-2lb |
| Number of Items | 2 |
| Number of Packs | 2 |
| Part Number | Fiberglass 19mm-2lb |
| Shape | Irregular Shape |
| Unit Count | 16 Ounce |

## Product Details

- **Brand:** UPTTHOW
- **Color:** White
- **Item Diameter:** 19 Millimeters
- **Material:** Fiberglass
- **Shape:** Irregular Shape

## Images

![Fiberglass for Cement Mortar Concrete Reinforcement (19MM)-2lb - Image 1](https://m.media-amazon.com/images/I/715nRghGIDL.jpg)
![Fiberglass for Cement Mortar Concrete Reinforcement (19MM)-2lb - Image 2](https://m.media-amazon.com/images/I/81XOIowNKOL.jpg)
![Fiberglass for Cement Mortar Concrete Reinforcement (19MM)-2lb - Image 3](https://m.media-amazon.com/images/I/81eubYW9sXL.jpg)
![Fiberglass for Cement Mortar Concrete Reinforcement (19MM)-2lb - Image 4](https://m.media-amazon.com/images/I/81HCtLzu8UL.jpg)
![Fiberglass for Cement Mortar Concrete Reinforcement (19MM)-2lb - 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

### ⭐⭐⭐⭐⭐ Worked well
*by S***E on September 3, 2026*

Worked well. We made a water fountain and added fibers to reinforce the vessel.

## Frequently Bought Together

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-09-16*