---
product_id: 627436287
title: "SX Trade Strength Cement Grey Mortar Repair Cement 300ml - Ready to use repair mortar for Pointing jobs & Damaged Masonry Joints - Adheres without primer on Damp Surfaces - Interior & Exterior"
brand: "siroflex"
price: "¥6558"
currency: JPY
in_stock: true
reviews_count: 5
category: "Siroflex"
url: https://www.desertcart.jp/products/627436287-sx-trade-strength-cement-grey-mortar-repair-cement-300ml-ready
store_origin: JP
region: Japan
---

# Adheres on damp surfaces without primer 300ml ready-to-use cartridge Easy V-notched nozzle application SX Trade Strength Cement Grey Mortar Repair Cement 300ml - Ready to use repair mortar for Pointing jobs & Damaged Masonry Joints - Adheres without primer on Damp Surfaces - Interior & Exterior

**Brand:** siroflex
**Price:** ¥6558
**Availability:** ✅ In Stock

## Summary

> 🧱 Fix it fast, fix it smart — the pro’s choice for seamless masonry repair!

## Quick Answers

- **What is this?** SX Trade Strength Cement Grey Mortar Repair Cement 300ml - Ready to use repair mortar for Pointing jobs & Damaged Masonry Joints - Adheres without primer on Damp Surfaces - Interior & Exterior by siroflex
- **How much does it cost?** ¥6558 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/627436287-sx-trade-strength-cement-grey-mortar-repair-cement-300ml-ready)

## Best For

- siroflex enthusiasts

## Why This Product

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

## Key Features

- • **Primer-Free Power:** Strong adhesion on damp or dry surfaces without any primer—get the job done faster.
- • **Compact & Portable:** Lightweight 300ml cartridge fits perfectly in your toolkit for quick on-the-go repairs.
- • **Precision Application:** Pre-cut V-notched nozzle ensures smooth, controlled filling for flawless pointing.
- • **Instant Fix, Zero Prep:** Skip mixing—ready-to-use mortar saves you time and hassle on every small repair.
- • **Water-Clean Convenience:** Clean tools and hands effortlessly with just water—no harsh chemicals needed.

## Overview

SX Trade Strength Cement Grey Mortar Repair Cement is a 300ml ready-to-use acrylic-based mortar designed for quick, reliable masonry joint repairs. It adheres strongly without primer—even on damp surfaces—and features an easy-to-use V-notched nozzle for precise application. Ideal for small pointing jobs, it cleans up easily with water and is suitable for both interior and exterior use.

## Description

Siroflex SX Mortar Repair Cement - A ready to use high quality hardening joint repair filler based on acrylic dispersions and additives. Specifically developed to repair damaged masonry joints quickly without the need to mix sand and cement. Will adhere perfectly without primer even on damp surfaces.

Review: I bought this SX Trade Strength mortar repair to do some repointing work around my brick house. Application was easy and the mortar itself feels good quality once applied. It sets well and is ideal for small repair jobs where you don’t want to mix up a full batch of mortar. The main thing to be aware of is the colour. It’s quite a light grey, and in my case it didn’t match the existing mortar on my house. The repair stands out more than I’d like, and I’ll need to find a darker option in the future to blend it in better. Overall, the quality of the product itself emphasizes reliability, but matching the existing mortar colour is essential for cosmetic repairs. Good for structural or functional fixes, but be careful if appearance matters.
Review: Good enough although it could maybe do with a little more moisture through it in order to help stick to a dry surface. Easily rectified and other than that it does its job well enough.

## Features

- READY TO USE MORTAR - Perfect for small pointing jobs, saving time on mixing sand and cement
- NO PRIMER - Will give a perfect adhesion to most surfaces without the requirement of a primer
- EASY TO APPLY - Simply cut the cartridge seal and screw on the pre-cut 'V' notched nozzle. Using a skeleton gun, apply the product into the gap ensuring a good solid fill.
- EASY TO CLEAN - Tools and hands can be cleaned with water.
- CONTENTS - 1 x SX Cement Grey Mortar Repair Cement 300ml

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C69MG58L |
| Batteries Required? | No |
| Best Sellers Rank | #135,500 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #97 in Contact Cements |
| Color | Grey |
| Customer Reviews | 4.2 4.2 out of 5 stars (857) |
| Date First Available | 1 May 2024 |
| Item model number | SXMORTRC300CG |
| Material Type(s) | Acrylic |
| Number of Puzzle Pieces | 1 |
| Product Dimensions | 5 x 5 x 23 cm; 550 g |

## Product Details

- **Brand:** Siroflex
- **Item form:** Paste
- **Material:** Acrylic
- **Special features:** Ready to use, no primer required
- **Specific uses for product:** Construction and Repair

## Images

![SX Trade Strength Cement Grey Mortar Repair Cement 300ml - Ready to use repair mortar for Pointing jobs & Damaged Masonry Joints - Adheres without primer on Damp Surfaces - Interior & Exterior - Image 1](https://m.media-amazon.com/images/I/61PISmmrqrL.jpg)
![SX Trade Strength Cement Grey Mortar Repair Cement 300ml - Ready to use repair mortar for Pointing jobs & Damaged Masonry Joints - Adheres without primer on Damp Surfaces - Interior & Exterior - Image 2](https://m.media-amazon.com/images/I/81TmsaquqHL.jpg)
![SX Trade Strength Cement Grey Mortar Repair Cement 300ml - Ready to use repair mortar for Pointing jobs & Damaged Masonry Joints - Adheres without primer on Damp Surfaces - Interior & Exterior - Image 3](https://m.media-amazon.com/images/I/61RK662DZrL.jpg)
![SX Trade Strength Cement Grey Mortar Repair Cement 300ml - Ready to use repair mortar for Pointing jobs & Damaged Masonry Joints - Adheres without primer on Damp Surfaces - Interior & Exterior - Image 4](https://m.media-amazon.com/images/I/91oMWHegJiL.jpg)
![SX Trade Strength Cement Grey Mortar Repair Cement 300ml - Ready to use repair mortar for Pointing jobs & Damaged Masonry Joints - Adheres without primer on Damp Surfaces - Interior & Exterior - Image 5](https://m.media-amazon.com/images/I/A1HNv2Q+jNL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by B***N on 11 January 2026*

I bought this SX Trade Strength mortar repair to do some repointing work around my brick house. Application was easy and the mortar itself feels good quality once applied. It sets well and is ideal for small repair jobs where you don’t want to mix up a full batch of mortar. The main thing to be aware of is the colour. It’s quite a light grey, and in my case it didn’t match the existing mortar on my house. The repair stands out more than I’d like, and I’ll need to find a darker option in the future to blend it in better. Overall, the quality of the product itself emphasizes reliability, but matching the existing mortar colour is essential for cosmetic repairs. Good for structural or functional fixes, but be careful if appearance matters.

### ⭐⭐⭐⭐ Review
*by C***. on 6 December 2025*

Good enough although it could maybe do with a little more moisture through it in order to help stick to a dry surface. Easily rectified and other than that it does its job well enough.

### ⭐⭐⭐⭐⭐ Review
*by R***M on 22 November 2025*

I bought two tubes, it was easy to use although it was a little hard to squeeze out at first. Before starting you need to ensure any loose material is cleared out of the gaps to be filled otherwise the filler can fall out. The colour is a light grey which blended well with my cement which is around 30yrs old, I’m happy with the results. Like the Bruce Willis film it Dries Hard. I know!

## Frequently Bought Together

- SX Trade Strength Cement Grey Mortar Repair Cement 300ml - Ready to use repair mortar for Pointing jobs & Damaged Masonry Joints - Adheres without primer on Damp Surfaces - Interior & Exterior
- Faithfull FAISGTPT6 Soft-Grip Pointing Trowel 150mm (6in)
- Fischer 523856 Express Mortar Cement Grey

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-05*