---
product_id: 372877720
title: "6MM-1Lb Fiberglass for Cement Mortar Concrete Reinforcement Anti-Seepage and Anti-Cracking Cement Mix for Building Walls Garden Floor"
brand: "uptthow"
price: "$56"
currency: NZD
in_stock: true
reviews_count: 13
category: "Uptthow"
url: https://www.desertcart.nz/products/372877720-6mm-1lb-fiberglass-for-cement-mortar-concrete-reinforcement-anti-seepage
store_origin: NZ
region: New Zealand
---

# Anti-seepage waterproof density 1 lb per cubic yard dosage 6mm thick fiberglass rods 6MM-1Lb Fiberglass for Cement Mortar Concrete Reinforcement Anti-Seepage and Anti-Cracking Cement Mix for Building Walls Garden Floor

**Brand:** uptthow
**Price:** $56
**Availability:** ✅ In Stock

## Summary

> 🧱 Reinforce your build with the fiber power that pros trust!

## Quick Answers

- **What is this?** 6MM-1Lb Fiberglass for Cement Mortar Concrete Reinforcement Anti-Seepage and Anti-Cracking Cement Mix for Building Walls Garden Floor by uptthow
- **How much does it cost?** $56 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/372877720-6mm-1lb-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

- • **Easy Pro Mix:** Simply blend sand, cement, and fiberglass with water; just 30-60 seconds extra stirring for superior strength.
- • **Precision Dosage:** Use 1 lb per cubic yard, or increase in high-impact or freeze-thaw zones to future-proof your build.
- • **Waterproof Warrior:** Dense fiber network seals cement, making it perfect for basements, ponds, and exterior walls prone to moisture.
- • **Crackproof Confidence:** Fiberglass fibers disperse evenly to prevent fine cracks, boosting mortar toughness for long-lasting walls.
- • **Impact-Resistant Backbone:** High-strength filaments form a resilient net, enhancing seismic and impact resistance for safer structures.

## Overview

UPTTHOW 6MM-1Lb Fiberglass rods are engineered to reinforce cement mortar by preventing cracks, enhancing waterproofing, and boosting impact resistance. Ideal for walls, garden floors, and wet environments, this 1 lb pack integrates seamlessly into your mix, delivering professional-grade durability and longevity.

## Description

UPTTHOW 6MM-1Lb Fiberglass for Cement Mortar Concrete Reinforcement Anti-Seepage and Anti-Cracking Cement Mix for Building Walls Garden Floor: desertcart.com: Tools & Home Improvement

Review: Perfect addition to Bondo or fiberglass resin. - 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.
Review: worked well - worked well; not to fluffy, be sure to add a little at a time, or it clumps up will buy again if required

## 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 | B09DT651WG |
| Best Sellers Rank | #82,720 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #33 in Concrete |
| Date First Available | August 27, 2021 |
| Item Form | Flat Rod, Roll |
| Item Thickness | 6 Millimeters |
| Item Weight | 1.21 pounds |
| Item model number | UWFiberglass 6mm-1lb US |
| Manufacturer | UPTTHOW |
| Number of Items | 1 |
| Package Dimensions | 8.23 x 7.28 x 1.65 inches |

## Product Details

- **Brand:** UPTTHOW
- **Color:** White
- **Item Diameter:** 6 Millimeters
- **Material:** Fiberglasss
- **Shape:** Rectangular

## Images

![6MM-1Lb Fiberglass for Cement Mortar Concrete Reinforcement Anti-Seepage and Anti-Cracking Cement Mix for Building Walls Garden Floor - Image 1](https://m.media-amazon.com/images/I/71Ky0YD+2aL.jpg)
![6MM-1Lb Fiberglass for Cement Mortar Concrete Reinforcement Anti-Seepage and Anti-Cracking Cement Mix for Building Walls Garden Floor - Image 2](https://m.media-amazon.com/images/I/81XOIowNKOL.jpg)
![6MM-1Lb Fiberglass for Cement Mortar Concrete Reinforcement Anti-Seepage and Anti-Cracking Cement Mix for Building Walls Garden Floor - Image 3](https://m.media-amazon.com/images/I/81eubYW9sXL.jpg)
![6MM-1Lb Fiberglass for Cement Mortar Concrete Reinforcement Anti-Seepage and Anti-Cracking Cement Mix for Building Walls Garden Floor - Image 4](https://m.media-amazon.com/images/I/81HCtLzu8UL.jpg)
![6MM-1Lb Fiberglass for Cement Mortar Concrete Reinforcement Anti-Seepage and Anti-Cracking Cement Mix for Building Walls Garden Floor - Image 5](https://m.media-amazon.com/images/I/91vaUr-2FKL.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

## Customer Reviews

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ worked well
*by J***Y on December 20, 2025*

worked well; not to fluffy, be sure to add a little at a time, or it clumps up will buy again if required

### ⭐⭐⭐⭐⭐ It works!
*by T***M on October 17, 2025*

If you want an easy way to make concrete stronger this is what you need!

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-28*