---
product_id: 344887226
title: "Bluestar Flexible Concrete Hairline Crack Filler (Light Gray), DIY - No Special Tools Needed. Fill Small Cracks in Concrete Driveways, Sidewalks and Patios."
brand: "blue star"
price: "₩66903"
currency: KRW
in_stock: true
url: https://www.desertcart.kr/products/344887226-bluestar-flexible-concrete-hairline-crack-filler-light-gray-diy-no
store_origin: KR
region: South Korea
---

# Micron-sized precision Weather-flexible formula Proudly made in the USA Bluestar Flexible Concrete Hairline Crack Filler (Light Gray), DIY - No Special Tools Needed. Fill Small Cracks in Concrete Driveways, Sidewalks and Patios.

**Brand:** blue star
**Price:** ₩66903
**Availability:** ✅ In Stock

## Summary

> 🛠️ Fix it like a pro, without the hassle!

## Quick Answers

- **What is this?** Bluestar Flexible Concrete Hairline Crack Filler (Light Gray), DIY - No Special Tools Needed. Fill Small Cracks in Concrete Driveways, Sidewalks and Patios. by blue star
- **How much does it cost?** ₩66903 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/344887226-bluestar-flexible-concrete-hairline-crack-filler-light-gray-diy-no)

## Best For

- blue star enthusiasts

## Why This Product

- Trusted blue star brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **DIY Delight:** No special tools needed for a quick fix.
- • **Color Choice:** Available in two stylish shades of gray.
- • **Generous Size:** 7 Fl. Oz. for multiple applications.
- • **Crack No More!:** Effortlessly fill hairline cracks with precision.
- • **Weather Warrior:** Designed to withstand extreme temperatures.

## Overview

The Bluestar Flexible Concrete Hairline Crack Filler is a user-friendly solution for repairing small cracks in concrete surfaces. Available in two shades of gray, this 7 Fl. Oz. filler is designed to remain flexible in varying weather conditions, making it perfect for DIY enthusiasts looking to enhance their outdoor spaces.

## Description

Bluestar Flexible Concrete Hairline Crack Filler (Light Gray), DIY - No Special Tools Needed. Fill Small Cracks in Concrete Driveways, Sidewalks and Patios.

## Features

- MICRON SIZED TO FILL HAIRLINE CRACKS
- TWO SHADES OF GRAY TO CHOOSE FROM - GRAY & LIGHT GRAY
- FORMULATED TO REMAIN FLEXIBLE IN HOT & COLD WEATHER
- DIY - Fast & Easy to Apply
- 7 Fl. Oz. MADE IN THE U.S.A.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B073ZL6GXN |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #295,174 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #663 in Wall Surface Repair Products |
| Brand | Blue Star |
| Capacity Description | 8 |
| Color | Light Gray |
| Customer Reviews | 4.2 4.2 out of 5 stars (931) |
| Date First Available | July 17, 2017 |
| Included Components | Sealant |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Weight | 8 ounces |
| Item dimensions L x W x H | 3 x 3 x 8 inches |
| Item model number | HL90LG-1 |
| Manufacturer | Bluestar |
| Material | Synthetic Rubber |
| Number of Items | 1 |
| Part Number | MM-92-1 |
| Product Dimensions | 3 x 3 x 8 inches |
| Style | Compact |
| Surface Recommendation | Floor |
| UPC | 866019000154 |
| Unit Count | 16.0 Ounce |
| Usage | Concrete/Masonry |
| Water Resistance Level | Water Resistant |

## Product Details

- **Material:** Synthetic Rubber
- **Brand:** Blue Star
- **Style:** Compact
- **Item weight:** 8 Ounces
- **Item dimensions L x W x H:** 7.6 x 7.6 x 20.3 centimeters

## Images

![Bluestar Flexible Concrete Hairline Crack Filler (Light Gray), DIY - No Special Tools Needed. Fill Small Cracks in Concrete Driveways, Sidewalks and Patios. - Image 1](https://m.media-amazon.com/images/I/71zjbNoQ-TL.jpg)
![Bluestar Flexible Concrete Hairline Crack Filler (Light Gray), DIY - No Special Tools Needed. Fill Small Cracks in Concrete Driveways, Sidewalks and Patios. - Image 2](https://m.media-amazon.com/images/I/51L4rGTfKiL.jpg)
![Bluestar Flexible Concrete Hairline Crack Filler (Light Gray), DIY - No Special Tools Needed. Fill Small Cracks in Concrete Driveways, Sidewalks and Patios. - Image 3](https://m.media-amazon.com/images/I/91AMba9Ik5L.jpg)

## Questions & Answers

**Q: Approximately how many linear feet can i expect from one bottle?**
A: Sir, There is no easy way to calculate the lineal feet of crack coverage.  other than guesstimating the the volume.  It really depends on the depth and width of your crack and Length.  However,  proper preparation of the crack is essential.  I plan on sandblasting my cracks, cleaning them out by using high pressure air or water. and then filling the void with the sealant.  If you use a pressure washer you need to make sure it is allowed to dry thoroughly before putting the sealant with them.  Filling the cracks on a warm day is a must.  Timing helps. Good luck. Michael

**Q: Can this be cleaned up with water while using?  Like using a wet sponge**
A: Yes.  Water clean up can be used.

**Q: I have a 2 tiered water fountain and the second tiered has hairline crack, can this product prevent it from breaking apart?**
A: This product will seal the crack but it will not repair it.  However our Bluestar Concrete Resurfacer may repair it since it is a concrete with added polymer for strength.   Bluestar Concrete Resurfacer is sold on Amazon also.

**Q: Will this work on tile?**
A: Yes. I’ve found it works on concrete, tile, stone and even wood. Great product.

## Frequently Bought Together

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- Bluestar Flexible Concrete Hairline Crack Filler (Gray), DIY - No Special Tools Needed. Fill Cracks in Driveways - Patios - Sidewalks. 8 fl. oz. Bottle.
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**Shop now:** [https://www.desertcart.kr/products/344887226-bluestar-flexible-concrete-hairline-crack-filler-light-gray-diy-no](https://www.desertcart.kr/products/344887226-bluestar-flexible-concrete-hairline-crack-filler-light-gray-diy-no)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-01-27*