---
product_id: 588623523
title: "SIROFLEX SX Trade Strength Mortar Repair Cement Ready to Use Ideal Quality Joint Repair Filler, Specifically Developed to Repair Damaged Masonry Joints Quickly, Size 300 ml, Colour Buff"
brand: "siroflex"
price: "$65"
currency: NZD
in_stock: false
reviews_count: 5
category: "Siroflex"
url: https://www.desertcart.nz/products/588623523-siroflex-sx-trade-strength-mortar-repair-cement-ready-to-use
store_origin: NZ
region: New Zealand
---

# Water-cleanable tools & hands Strong adhesion on damp surfaces Ready-to-use, no mixing needed SIROFLEX SX Trade Strength Mortar Repair Cement Ready to Use Ideal Quality Joint Repair Filler, Specifically Developed to Repair Damaged Masonry Joints Quickly, Size 300 ml, Colour Buff

**Brand:** siroflex
**Price:** $65
**Availability:** ❌ Out of Stock

## Summary

> 🧱 Fix it fast, fix it flawless — your masonry’s new best friend!

## Quick Answers

- **What is this?** SIROFLEX SX Trade Strength Mortar Repair Cement Ready to Use Ideal Quality Joint Repair Filler, Specifically Developed to Repair Damaged Masonry Joints Quickly, Size 300 ml, Colour Buff by siroflex
- **How much does it cost?** $65 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/588623523-siroflex-sx-trade-strength-mortar-repair-cement-ready-to-use)

## 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

- • **Clean & Convenient:** Water-based cleanup means no harsh chemicals or stubborn residue.
- • **Instant Masonry Magic:** Skip the mess—ready-to-use formula saves you mixing time and hassle.
- • **No Primer, No Problem:** Adheres perfectly to most surfaces, even damp ones, without extra prep.
- • **Precision Application:** Pre-cut 'V' nozzle ensures smooth, controlled filling for flawless joints.
- • **Buff Beauty, Built to Last:** Durable acrylic-based filler that blends seamlessly with your brickwork.

## Overview

SIROFLEX SX Trade Strength Mortar Repair Cement is a 300ml ready-to-use acrylic-based filler designed for quick, durable repair of damaged masonry joints. It requires no primer, adheres well even on damp surfaces, and cleans up easily with water, making it ideal for professional-quality small pointing jobs without the mess of mixing traditional mortar.

## 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'm a competent DIYer but building work is something I rarely do. When it comes to brickwork I do it so infrequently that I have never got good at it. Reeccently I had need to replace an old rotten single pane wooden window with a new uPVC one. It was a struggle but looked OK but my attempt at mixing my own mortar and repairing the brickwork was a failure. The next day a small child could with only a sneezs have undone what I had done. So I bought some of this stuff - easy to use just like any other gunk you might have in your cartridge gun. Various colours available and it did the job of sizing the brickwork around the new window and beneath the cill in no time. The brickwork is still solid. I was fairly sure the stuff wouldn't keep so I used the little bit that was left fixing the back step. It's not cheap stuff but if you have had a bit of bother and need it to work this stuff is perfect to bridge the gap between skill and need.
Review: Very useful for small areas where you don't need much, and mixing your own would be a waste..it did the job, however, it could have been a bit wetter as the dryness made it curl up a bit when coming out of the tube. took longer to dry than stated, but when it did was solid.

## 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 - Siroflex SX Mortar Repair Cement - Size 300ml, Colour Buff

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CN3LC8QM |
| Batteries Required? | No |
| Best Sellers Rank | #193,652 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #429 in Raw Building Materials |
| Color | Buff |
| Customer Reviews | 4.1 4.1 out of 5 stars (232) |
| Date First Available | 14 November 2023 |
| Item model number | SXMORTRC300BU |
| Material Type(s) | Acrylic |
| Number of Puzzle Pieces | 1 |
| Product Dimensions | 23 x 5 x 5 cm; 580 g |

## Product Details

- **Brand:** Siroflex
- **Item form:** Paste
- **Material:** Acrylic
- **Special features:** Strong, Water Resistant
- **Specific uses for product:** Masonry Repair

## Images

![SIROFLEX SX Trade Strength Mortar Repair Cement Ready to Use Ideal Quality Joint Repair Filler, Specifically Developed to Repair Damaged Masonry Joints Quickly, Size 300 ml, Colour Buff - Image 1](https://m.media-amazon.com/images/I/61FHThkTcCL.jpg)
![SIROFLEX SX Trade Strength Mortar Repair Cement Ready to Use Ideal Quality Joint Repair Filler, Specifically Developed to Repair Damaged Masonry Joints Quickly, Size 300 ml, Colour Buff - Image 2](https://m.media-amazon.com/images/I/819npFMiXcL.jpg)
![SIROFLEX SX Trade Strength Mortar Repair Cement Ready to Use Ideal Quality Joint Repair Filler, Specifically Developed to Repair Damaged Masonry Joints Quickly, Size 300 ml, Colour Buff - Image 3](https://m.media-amazon.com/images/I/81KqLkzNl0L.jpg)
![SIROFLEX SX Trade Strength Mortar Repair Cement Ready to Use Ideal Quality Joint Repair Filler, Specifically Developed to Repair Damaged Masonry Joints Quickly, Size 300 ml, Colour Buff - Image 4](https://m.media-amazon.com/images/I/81lJ2eX2jZL.jpg)
![SIROFLEX SX Trade Strength Mortar Repair Cement Ready to Use Ideal Quality Joint Repair Filler, Specifically Developed to Repair Damaged Masonry Joints Quickly, Size 300 ml, Colour Buff - Image 5](https://m.media-amazon.com/images/I/91oMWHegJiL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***U on 13 August 2025*

I'm a competent DIYer but building work is something I rarely do. When it comes to brickwork I do it so infrequently that I have never got good at it. Reeccently I had need to replace an old rotten single pane wooden window with a new uPVC one. It was a struggle but looked OK but my attempt at mixing my own mortar and repairing the brickwork was a failure. The next day a small child could with only a sneezs have undone what I had done. So I bought some of this stuff - easy to use just like any other gunk you might have in your cartridge gun. Various colours available and it did the job of sizing the brickwork around the new window and beneath the cill in no time. The brickwork is still solid. I was fairly sure the stuff wouldn't keep so I used the little bit that was left fixing the back step. It's not cheap stuff but if you have had a bit of bother and need it to work this stuff is perfect to bridge the gap between skill and need.

### ⭐⭐⭐⭐ Review
*by M***A on 16 September 2025*

Very useful for small areas where you don't need much, and mixing your own would be a waste..it did the job, however, it could have been a bit wetter as the dryness made it curl up a bit when coming out of the tube. took longer to dry than stated, but when it did was solid.

### ⭐⭐⭐⭐ Review
*by P***G on 31 August 2025*

Did the job with ease. Colour was right.

## Frequently Bought Together

- SX Trade Strength Buff Mortar Repair Cement 300ml - Ready to use repair mortar for Pointing jobs & Damaged Masonry Joints - Adheres without primer on Damp Surfaces - Interior & Exterior
- ProDec Extra Strong Caulking Gun
- fischer 523858 Express Cement-Sand

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---

*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-10*