---
product_id: 534611876
title: "SX Siroflex 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: "166 kr"
currency: DKK
in_stock: true
reviews_count: 8
category: "Siroflex"
url: https://www.desertcart.dk/products/534611876-sx-siroflex-cement-grey-mortar-repair-cement-300ml-ready-to
store_origin: DK
region: Denmark
---

# Adheres on damp surfaces without primer Fast curing with 5-hour dry time 300ml ready-to-use cartridge SX Siroflex 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:** 166 kr
**Availability:** ✅ In Stock

## Summary

> 🧱 Fix it fast, fix it flawless — cement your spot as the DIY pro!

## Quick Answers

- **What is this?** SX Siroflex 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?** 166 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/534611876-sx-siroflex-cement-grey-mortar-repair-cement-300ml-ready-to)

## 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-cleanup keeps your workspace spotless and stress-free
- • **Ready When You Are:** 300ml cartridge ready to use—no mixing, no mess
- • **No Primer, No Problem:** Strong adhesion on damp or dry surfaces saves prep time
- • **Durable & Weatherproof:** Ideal for both interior and exterior masonry repairs
- • **Effortless Precision Repair:** Pre-cut 'V' nozzle for clean, professional pointing jobs

## Overview

SX Trade Strength Cement Grey Mortar Repair Cement is a 300ml ready-to-use acrylic mortar designed for quick, durable repairs of pointing and damaged masonry joints. It adheres strongly without primer—even on damp surfaces—and cures within 5 hours, making it perfect for both interior and exterior applications. The product features a pre-cut 'V' nozzle for precise application and cleans up easily with water, streamlining your repair process with professional results.

## Description

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 : desertcart.co.uk: Outlet

Review: Good price and product for small repairs. - 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!
Review: Decent enough - 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

- Contains 5-chloro-2-methyl-2H-isothiazol-3-one and 2-methyl-2H-isothiazol-3-one (3:1)[C(M)IT/MIT] & 1,2-benzisothiazol-3(2H)-one [BIT]. May produce an allergic reaction.
- Safety data sheet available on request.
- 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 attach the pre-cut 'V' notched nozzle. For best results, use a high-quality applicator gun, as the material can be stiff to apply directly from the cartridge
- APPLICATION TIPS: Apply only in dry weather conditions and ensure the surface remains dry for at least 5 hours after application to allow proper curing.
- TEMPERATURE REQUIREMENTS: Ensure both the product and the substrate are above 5°C for optimal performance.
- EASY TO CLEAN**: Clean tools and hands effortlessly with just water, making cleanup quick and convenient.
- CONTENTS - 1 x SX Cement Grey Mortar Repair Cement 300ml

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C69MG58L |
| Batteries Required? | No |
| Best Sellers Rank | 1,536 in DIY & Tools ( See Top 100 in DIY & Tools ) 2 in Cement |
| Colour | Grey |
| Customer Reviews | 4.2 4.2 out of 5 stars (1,059) |
| Date First Available | 25 May 2023 |
| Item model number | SXMORTRC300CG |
| Material Type(s) | Acrylic |
| Number of pieces | 1 |
| Product Dimensions | 5 x 5 x 23 cm; 550 g |

## Product Details

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

## Images

![SX Siroflex 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)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good price and product for small repairs.
*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!

### ⭐⭐⭐⭐ Decent enough
*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.

### ⭐⭐⭐⭐⭐ Does the job very easy
*by J***A on 30 November 2025*

Brilliant, does the job. Super easy to apply and work with

## 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 Denmark*
*Store origin: DK*
*Last updated: 2026-02-08*