---
product_id: 23167743
title: "Sikaflex Mortar Fix, Limestone, Polyurethane sealant for Repairing Damaged Mortar, Joints and Gaps. Sealing Mortar Cracks 10.1 fl. oz Cartridge (Pack of 1)"
brand: "sika"
price: "¥5394"
currency: JPY
in_stock: true
category: "Sika"
url: https://www.desertcart.jp/products/23167743-sikaflex-mortar-fix-limestone-polyurethane-sealant-for-repairing-damaged-mortar
store_origin: JP
region: Japan
---

# Paintable, stainable & sandable for perfect finish Limestone color for seamless mortar blending Polyurethane elastomeric sealant with superior elasticity Sikaflex Mortar Fix, Limestone, Polyurethane sealant for Repairing Damaged Mortar, Joints and Gaps. Sealing Mortar Cracks 10.1 fl. oz Cartridge (Pack of 1)

**Brand:** sika
**Price:** ¥5394
**Availability:** ✅ In Stock

## Summary

> 🧱 Seal the cracks, not your style — blend, flex, and finish like a pro!

## Quick Answers

- **What is this?** Sikaflex Mortar Fix, Limestone, Polyurethane sealant for Repairing Damaged Mortar, Joints and Gaps. Sealing Mortar Cracks 10.1 fl. oz Cartridge (Pack of 1) by sika
- **How much does it cost?** ¥5394 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/23167743-sikaflex-mortar-fix-limestone-polyurethane-sealant-for-repairing-damaged-mortar)

## 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

- • **Easy Application:** Compatible with any standard caulk gun, cures on contact with moisture, and fully sets in 7 days for quick, reliable sealing.
- • **Certified Quality:** Meets ASTM and federal standards with urethane-based formula that reduces radon emissions for a safer environment.
- • **Custom Finish Ready:** Cures to a paintable, stainable, and sandable surface—match your wall’s style effortlessly with oil, water, or rubber-based paints.
- • **Flexible Durability:** One-component polyurethane formula retains elasticity to resist cracking and tearing, ensuring long-lasting repairs.
- • **Invisible Restoration:** Specially textured limestone hue blends flawlessly with rough, stucco-like mortar surfaces for a professional look.

## Overview

Sikaflex Mortar Fix is a limestone-colored, polyurethane-based sealant designed to repair and blend seamlessly with damaged mortar joints. Its elastomeric properties provide superior flexibility to prevent cracking, while its paintable and sandable finish allows for perfect aesthetic matching. Certified to meet industry standards and easy to apply with a standard caulk gun, it offers a durable, waterproof solution for both vertical and horizontal masonry repairs.

## Description

Is your brick wall showing cracks or gapping in its mortar? If left unattended, the damage will only worsen, as water infiltrates and expands. Fortunately, Sikaflex limestone mortar fix is the perfect solution. This polyurethane-based mortar repair and sealant is textured to blend seamlessly to rough, stucco-like surfaces. It features strong adhesion and superior elasticity to allow movement between surfaces, which helps prevent damage to the sealant and results in a stronger bond. Maximum depth of joint should not exceed 1/2-inch for optimal performance. It also hides imperfections from tooling that smooth sealants can't match, so your handiwork looks more professional.

## Features

- DESIGNED TO BLEND — Sikaflex mortar fix sealant is specially textured to better blend with rough, stucco-like surfaces, while the limestone color makes the blend seamless
- RETAINS EXCELLENT ELASTICITY — The one-component polyurethane-based elastomeric sealant cures to a flexible consistency, improving resistance to tears and cracking
- READY YOUR BRUSHES — Once cured, the sealant is paintable, stainable, and sandable, so it's easy to match the style of the surrounding features. Just be sure to use oil, water, or rubber-based paints
- SEAL OF APPROVAL — Sikaflex concrete sealant meets federal and industry standards for quality and performance, and is urethane-based to reduce production of radon for a cleaner environment
- DEAL FOR BOTH VERTICAL AND HORIZONTAL — Insert cartridge into any standard caulk gun to apply. Begins to cure on contact with atmospheric moisture. Allow up to 7 days for final cure

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001AQ0CA6 |
| Best Sellers Rank | #28,741 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #115 in Hardware Sealers |
| Brand Name | SIKA |
| Color | Limestone |
| Compatible Material | Metal |
| Customer Reviews | 4.3 4.3 out of 5 stars (623) |
| Global Trade Identification Number | 00033886002622 |
| Included Components | Sealant |
| Item Dimensions | 11.5 x 2 x 11.5 inches |
| Item Form | Paste |
| Item Part Number | 757210 |
| Item Type Name | Sealant |
| Item Weight | 16 ounces |
| Manufacturer | SIKA CORPORATION |
| Material Type | Polyurethane |
| Model | 187784 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | 187784 |
| Style Name | Compact |
| Supported Standards | ASTM C 920, Type S, Grade NS; TT-S-00230C, Type II |
| Surface Recommendation | Window |
| UPC | 033886093910 033886002622 |
| Unit Count | 10.1 Fluid Ounces |
| Warranty Description | SIKA warrants this product for one year from date of installation to be free from manufacturing defects and to meet the technical properties on the current Product Data Sheet |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** SIKA
- **Item Weight:** 16 ounces
- **Item dimensions L x W x H:** 11.5 x 2 x 11.5 inches
- **Material:** Polyurethane
- **Style:** Compact

## Images

![Sikaflex Mortar Fix, Limestone, Polyurethane sealant for Repairing Damaged Mortar, Joints and Gaps. Sealing Mortar Cracks 10.1 fl. oz Cartridge (Pack of 1) - Image 1](https://m.media-amazon.com/images/I/617+mJb7y6L.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Can this be mixed with a little paint to blend with mortered joints?**
A: No, Sikaflex Mortar Fix can’t mixed with paint or any other colorant. Once cured, it is paintable, and will adhere to the cured polyurethane - based sealant.

**Q: Do you really have to wait a week to paint?**
A: It really would be a good idea but it depends on how thick you are going to apply, as it does take a while to dry on the inside.

**Q: what thrust ration of a caulking gun to use for this product?**
A: Normal thrust.Comes out very good.Great product.

**Q: How big of an area does one tube cover?**
A: Small crack in Stucco walll.  about 25 feet

## Frequently Bought Together

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-20*