---
product_id: 17019214
title: "Sikaflex Crack Flex Sealant, Gray, High-Performance Textured Polyurethane, Self-Leveling, Waterproof Sealant for Horizontal Cracks Up to 1 in Wide, 10.1 fl oz,"
brand: "sika"
price: "155 zł"
currency: PLN
in_stock: true
reviews_count: 13
category: "Sika"
url: https://www.desertcart.pl/products/17019214-sikaflex-crack-flex-sealant-gray-high-performance-textured-polyurethane-self
store_origin: PL
region: Poland
---

# high elasticity resists cracking textured gray blends with concrete 100% waterproof seal Sikaflex Crack Flex Sealant, Gray, High-Performance Textured Polyurethane, Self-Leveling, Waterproof Sealant for Horizontal Cracks Up to 1 in Wide, 10.1 fl oz,

**Brand:** sika
**Price:** 155 zł
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal smart, stay flawless—because cracks don’t wait!

## Quick Answers

- **What is this?** Sikaflex Crack Flex Sealant, Gray, High-Performance Textured Polyurethane, Self-Leveling, Waterproof Sealant for Horizontal Cracks Up to 1 in Wide, 10.1 fl oz, by sika
- **How much does it cost?** 155 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/17019214-sikaflex-crack-flex-sealant-gray-high-performance-textured-polyurethane-self)

## Best For

- sika enthusiasts

## Why This Product

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

## Key Features

- • **Concrete Camouflage:** Textured gray finish blends invisibly with pavements
- • **Pro-Grade Durability:** Premium polyurethane resists aging, rain, and runoff
- • **Flexes with Every Move:** Elastic formula prevents cracks and tears under stress
- • **Effortless Self-Leveling:** Flows smoothly into cracks—no tooling needed, no mess
- • **Seamless Waterproof Defense:** Locks out water and weather for lasting protection

## Overview

Sika Sikaflex Crack Flex Sealant is a high-performance, self-leveling polyurethane sealant designed for horizontal concrete cracks up to 1 inch wide. Its waterproof, elastic formula ensures long-lasting protection by flexing with surface movement and blending seamlessly with concrete surfaces. Ideal for driveways, sidewalks, decks, and terraces, it offers professional-grade durability and easy application for flawless, invisible repairs.

## Description

If your driveway, sidewalk, balcony, steps, or other concrete or cement surface has cracks or gapping, Sikaflex Crack Flex sealant is the solution you need. This is a one-component, premium-grade polyurethane sealant that, once cured, offers waterproof protection and long-lasting durability. Simply insert the compact cartridge into a standard caulk gun and you're ready to go. The sealant is self-leveling, so there's no need to tool it down or shape it into the crack. And, it's specially textured to better blend with the pavement. The sealant features high elasticity to allow for movement and prevent tearing for a longer-lasting seal.

Review: Excellent sealing, highly flexible - The gray water tank on my class A RV was smelling terrible. It was getting inside the living area and making everything smell terrible. I couldn’t find a leak anywhere. When I looked at all the connections and the tank, the only thing I could find was how this pipe went into the top of the tank, there was no rubber connection with clamps. That seemed very suspicious to me. It just appeared to be stuck into the top of the tank, and sealed in there with what appeared to be plumbers putty. I called the manufacturer and asked if this was how it was supposed to be. I would purchase a rubber connection if it was available. They said they are still doing it this way and if they have a problem to use a Sikaflex gray compound. I purchased a tube, and although the pipe comes out of the top of the tank I used the self leveling compound. I started applying it above the suspect area and let it flow down over the existing stuff and let it flow onto the top of the tank. It actually made a very nice looking cone shaped seal. By that evening, I could tell the smell was getting better. It’s been about two weeks and you can’t detect it in the RV anymore. I have aired out the basement in the RV and that seems fine now too. I would highly recommend this flexible sealant. It’s amazing how flexible it is and how well it sealed this connection. We suffered with the smell for years until I had checked every fitting and the tank. The only thing left was this connection, but it appeared fine. The crack filling abilities of this self leveling system must have flowed into the source of the problem! Best ten bucks I’ve spent in a long time!
Review: Truly self leveling....easy to use......matches concrete well.... - This stuff is amazing and absolutely delivers on it's promises! I originally completed this project using the horrible Dap version of concrete filler/seal which was horrible to work with and NEVER set (even after 2 dry 70 degree days) and essentially washed away on 1st rain. I completed the project again with this Sikaflex and it worked perfectly. It completely self levels and fills in the void. The best advice I have is DON'T touch it. Just lay your bead and let it work it's magic. It completely levels and leaves a smooth finish. Then come back and re-fill any voids that may appear. I had used sand then backer rod so I only had one corner spot that needed a little extra fill. I also sprinkle a little of the sand on the still wet seal to add to the concrete look though this Sikaflex already has a nice texture. This stuff has a great look on it's own and I'm so impressed with how well it works and looks. It's now cured and firm, yet pliable to the touch. I should have used this stuff in the first place.

## Features

- TIGHT, WATERPROOF SEALS — Sika self-leveling sealant provides an ideal solution for cracks found in concrete pavement, driveways, walkways, terraces, decks, and other horizontal surfaces
- ELASTICITY RESISTS CRACKING AND TEARING — Sika pro sealant incorporates a high elasticity that allows for movement between bonded surfaces. This helps prevent damage to the caulk for a better seal
- TEXTURED TO BLEND — Colored gray to blend with sidewalks and driveways, this caulk features a special texturing to better match the look and feel of everyday concrete, cement, and similar surfaces
- LONG-LASTING PROTECTION — Once cured, the seal is waterproof and water immersible, so rainwater and garden runoff won't hurt it. And, it's formulated to resist weathering and aging too

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00NO70BKA |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #11,859 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #7 in Polyurethane Adhesives |
| Brand | SIKA |
| Color | Gray |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,918) |
| Date First Available | September 17, 2014 |
| Global Trade Identification Number | 00033886064514 |
| Included Components | Sealant |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Weight | 10.1 ounces |
| Item dimensions L x W x H | 11.5 x 2 x 11.5 inches |
| Item model number | 427706 |
| Manufacturer | SIKA CORPORATION |
| Material | Polyurethane |
| Number of Items | 1 |
| Part Number | 427706 |
| Product Dimensions | 11.5 x 2 x 11.5 inches |
| Size | Pack of 1 |
| Style | Crack Flex Sealant |
| Surface Recommendation | Concrete |
| UPC | 033886093903 033886064514 |
| Unit Count | 1.0 Count |
| Usage | Amateur, Professional |
| Warranty Description | Warranty |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** SIKA
- **Item Weight:** 10.08 ounces
- **Item dimensions L x W x H:** 11.5 x 2 x 11.5 inches
- **Material:** Polyurethane
- **Style:** Crack Flex Sealant

## Images

![Sikaflex Crack Flex Sealant, Gray, High-Performance Textured Polyurethane, Self-Leveling, Waterproof Sealant for Horizontal Cracks Up to 1 in Wide, 10.1 fl oz, - Image 1](https://m.media-amazon.com/images/I/610nqP+1m9L.jpg)

## Questions & Answers

**Q: After application, is this sandable? Also, if yes, is there an ideal period of “curing” before sanding?**
A: Yes, you can sand once fully cured. It is recommended to wait 3 to 5 days prior to sanding. Thank you for choosing Sika!

**Q: How long does it take to dry a one inch gas about one inch deep 10 '" long?**
A: Two hours to dry. Twelve to twenty four hours to cure.

**Q: Should I apply this before or after applying a (water based siloxane) concrete sealer?**
A: Apply after the concrete sealer.

**Q: How soon after application can it be driven on?**
A: Hi Kelly. We recommend waiting 3 to 5 days for the sealant to fully cure before opening to vehicular traffic. Thank you for choosing Sika!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent sealing, highly flexible
*by J***E on September 1, 2023*

The gray water tank on my class A RV was smelling terrible. It was getting inside the living area and making everything smell terrible. I couldn’t find a leak anywhere. When I looked at all the connections and the tank, the only thing I could find was how this pipe went into the top of the tank, there was no rubber connection with clamps. That seemed very suspicious to me. It just appeared to be stuck into the top of the tank, and sealed in there with what appeared to be plumbers putty. I called the manufacturer and asked if this was how it was supposed to be. I would purchase a rubber connection if it was available. They said they are still doing it this way and if they have a problem to use a Sikaflex gray compound. I purchased a tube, and although the pipe comes out of the top of the tank I used the self leveling compound. I started applying it above the suspect area and let it flow down over the existing stuff and let it flow onto the top of the tank. It actually made a very nice looking cone shaped seal. By that evening, I could tell the smell was getting better. It’s been about two weeks and you can’t detect it in the RV anymore. I have aired out the basement in the RV and that seems fine now too. I would highly recommend this flexible sealant. It’s amazing how flexible it is and how well it sealed this connection. We suffered with the smell for years until I had checked every fitting and the tank. The only thing left was this connection, but it appeared fine. The crack filling abilities of this self leveling system must have flowed into the source of the problem! Best ten bucks I’ve spent in a long time!

### ⭐⭐⭐⭐⭐ Truly self leveling....easy to use......matches concrete well....
*by J***S on November 9, 2023*

This stuff is amazing and absolutely delivers on it's promises! I originally completed this project using the horrible Dap version of concrete filler/seal which was horrible to work with and NEVER set (even after 2 dry 70 degree days) and essentially washed away on 1st rain. I completed the project again with this Sikaflex and it worked perfectly. It completely self levels and fills in the void. The best advice I have is DON'T touch it. Just lay your bead and let it work it's magic. It completely levels and leaves a smooth finish. Then come back and re-fill any voids that may appear. I had used sand then backer rod so I only had one corner spot that needed a little extra fill. I also sprinkle a little of the sand on the still wet seal to add to the concrete look though this Sikaflex already has a nice texture. This stuff has a great look on it's own and I'm so impressed with how well it works and looks. It's now cured and firm, yet pliable to the touch. I should have used this stuff in the first place.

### ⭐⭐⭐⭐ Seals against concrete very well
*by J***. on February 7, 2022*

I used the product for two different solutions: I filled a gap under my garage door seal, and to fill cracks on a porch slab. For the garage door seal I applied a few thin layers, where the self-leveling property works very well. I built up a good, flat surface. For the crack-filling, the product flowed into the cracks very well and seems to have sealed very well. Because I applied the product in relatively cool conditions, I contacted the manufacturer about that issue, and was given specific advice. The ambient temperature met the stated specifications for the product, and it worked. The only negative feature is the color, which does not match the color of concrete at all - it stays very bright.

## Frequently Bought Together

- Sikaflex Crack Flex Sealant, Gray, High performance, textured polyurethane sealant, self-leveling, sealant for sealing horizontal cracks, 10,1 fl. Oz
- M-D Building Products - Versatile Gray Foam Backer Rod Set 1/2in x 20ft - Essential Caulk Saver for Sealing Concrete Gaps, Expansion Joints, and Crack Filling (71480)
- M-D Building Products - Versatile Gray Foam Backer Rod - Essential Caulk Saver for Sealing Concrete Gaps, Expansion Joints, and Crack Filling, 3/8 by 20 Feet, (Pack of 2) (71464)

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-02-01*