---
product_id: 346403605
title: "Bluestar Flexible Concrete Crack Filler (Gray), DIY - No Special Tools Needed, Fill Cracks in Concrete Driveways, Sidewalks, Patios, Garage and Basement Floors. 16 fl. oz. Bottle."
brand: "blue star"
price: "€ 69.44"
currency: EUR
in_stock: true
reviews_count: 10
category: "Blue Star"
url: https://www.desertcart.nl/products/346403605-bluestar-flexible-concrete-crack-filler-gray-diy-no-special-tools
store_origin: NL
region: Netherlands
---

# Seals & flexes with concrete cracks Flexible in hot & cold weather DIY-friendly, no special tools needed Bluestar Flexible Concrete Crack Filler (Gray), DIY - No Special Tools Needed, Fill Cracks in Concrete Driveways, Sidewalks, Patios, Garage and Basement Floors. 16 fl. oz. Bottle.

**Brand:** blue star
**Price:** € 69.44
**Availability:** ✅ In Stock

## Summary

> 🧱 Seal the cracks, not your style—flexible concrete repair made simple!

## Quick Answers

- **What is this?** Bluestar Flexible Concrete Crack Filler (Gray), DIY - No Special Tools Needed, Fill Cracks in Concrete Driveways, Sidewalks, Patios, Garage and Basement Floors. 16 fl. oz. Bottle. by blue star
- **How much does it cost?** € 69.44 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/346403605-bluestar-flexible-concrete-crack-filler-gray-diy-no-special-tools)

## 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

- • **Long-Lasting Seal:** Prevents further damage by locking out moisture and debris.
- • **Compact & Portable:** Easy to store and carry for quick fixes anywhere around your home.
- • **Dual Color Options:** Choose Gray or Light Gray for a seamless, natural finish.
- • **Effortless DIY Repair:** No special tools required—fix cracks like a pro in minutes.
- • **Weatherproof Flexibility:** Formulated to expand and contract with concrete in any climate.

## Overview

Bluestar Flexible Concrete Crack Filler is a versatile, rubber-based sealant designed for DIY enthusiasts to easily repair cracks in concrete surfaces. Available in two natural shades, it flexes with temperature changes to prevent further damage, requires no special tools, and is ideal for driveways, patios, garages, and basements. Made in the USA, this 16 fl. oz. bottle offers a durable, weather-resistant solution for maintaining your concrete’s integrity.

## Description

Bluestar Flexible Concrete Crack Filler is a one of a kind proprietary crack filler. The unique blend fills and seals cracks in concrete. This product is flexible therefore it flexes with the contraction and expansion of concrete. It also remains flexible in hot and cold temperatures. It is DIY fast and easy to apply. No special tools required. Seals to prevent further damage. Two colors to choose from (Gray & Light Gray). Also use to fill cracks on concrete steps, garage, and basement floors. Made in USA.

Review: Perfect concrete crack filler - Excellent product easy to use and does the job.goes a long way .
Review: Good for small cracks - Easy to use and does what it says

## Features

- Causes skin irritation.
- Two colors to choose from - (Gray & Light Gray)
- Flexes with the contraction and expansion of concrete.
- Formulated to remain flexible in hot and cold weather.
- DIY - Fast & Easy to Apply
- No special tools required

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B074P94G54 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 243,035 in DIY & Tools ( See Top 100 in DIY & Tools ) 41 in Concrete |
| Colour | Gray |
| Customer Reviews | 4.2 4.2 out of 5 stars (788) |
| Date First Available | 6 July 2017 |
| Item Package Quantity | 1 |
| Item Weight | 453 g |
| Item model number | MM90GR-1 |
| Manufacturer | Smith-Flex Technology |
| Material | Rubber |
| Number of Pieces | 1 |
| Part number | MM90GR-1 |
| Pattern | Solid |
| Product Dimensions | 7.62 x 7.62 x 20.32 cm; 453.59 g |
| Special Features | Portable |
| Style | Compact |

## Product Details

- **Brand:** Blue Star
- **Item dimensions L x W x H:** 7.6 x 7.6 x 20.3 centimetres
- **Item weight:** 16 Ounces
- **Material:** Rubber
- **Style:** Compact

## Images

![Bluestar Flexible Concrete Crack Filler (Gray), DIY - No Special Tools Needed, Fill Cracks in Concrete Driveways, Sidewalks, Patios, Garage and Basement Floors. 16 fl. oz. Bottle. - Image 1](https://m.media-amazon.com/images/I/71BSs-+OXRL.jpg)
![Bluestar Flexible Concrete Crack Filler (Gray), DIY - No Special Tools Needed, Fill Cracks in Concrete Driveways, Sidewalks, Patios, Garage and Basement Floors. 16 fl. oz. Bottle. - Image 2](https://m.media-amazon.com/images/I/51q7yl6YJQL.jpg)
![Bluestar Flexible Concrete Crack Filler (Gray), DIY - No Special Tools Needed, Fill Cracks in Concrete Driveways, Sidewalks, Patios, Garage and Basement Floors. 16 fl. oz. Bottle. - Image 3](https://m.media-amazon.com/images/I/9197wjg3DML.jpg)
![Bluestar Flexible Concrete Crack Filler (Gray), DIY - No Special Tools Needed, Fill Cracks in Concrete Driveways, Sidewalks, Patios, Garage and Basement Floors. 16 fl. oz. Bottle. - Image 4](https://m.media-amazon.com/images/I/91AMba9Ik5L.jpg)
![Bluestar Flexible Concrete Crack Filler (Gray), DIY - No Special Tools Needed, Fill Cracks in Concrete Driveways, Sidewalks, Patios, Garage and Basement Floors. 16 fl. oz. Bottle. - Image 5](https://m.media-amazon.com/images/I/81Fmo7+pEZL.jpg)

## Questions & Answers

**Q: Can this be used on interior concrete basement walls and floors, or is this strictly for exterior use?**
A: Both no problem. It is good for any temp  so you are good to go. I have used it on driveway and for cracks in basement floor.

**Q: Is this paintable?**
A: Yes

**Q: Does it produce strong smells, fumes? I need to apply on holes and uneven setting on indoor apt ceiling. Would it set properly or is the product runny**
A: No smell but I don't know about applying it on a ceiling!

**Q: Do I need a tool to push filler into crack?**
A: This was used to fill cracks in our basement floor. We used a tool to smooth it, but not to force it into the crack, which is great if you can do that. It has been on the floor for some time now and has not cracked again.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect concrete crack filler
*by D***E on 27 August 2025*

Excellent product easy to use and does the job.goes a long way .

### ⭐⭐⭐⭐⭐ Good for small cracks
*by M***L on 2 September 2024*

Easy to use and does what it says

### ⭐⭐⭐⭐ Appears to work, at present
*by M***N on 21 October 2024*

More a rubber solution then actual cement.easy to use but if a crack is deep I would use cement to fill most of it and then use this solution.not sure how long this stuff may last,time will tell.will let you know

## Frequently Bought Together

- Bluestar Flexible Concrete Crack Filler (Gray), DIY - No Special Tools Needed, Fill Cracks in Concrete Driveways, Sidewalks, Patios, Garage and Basement Floors. 16 fl. oz. Bottle.
- Bluestar Flexible Concrete Hairline Crack Filler (Light Gray), DIY - No Special Tools Needed. Fill Small Cracks in Concrete Driveways, Sidewalks and Patios.
- 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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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-03-17*