--- product_id: 534611876 title: "– SX Siroflex Mortar Repair Cement Grey – Ready to use repair mortar for Pointing jobs & Damaged Masonry Joints - Adheres without primer on Damp Surfaces - Interior & Exterior – 300ml" brand: "siroflex" price: "¥4272" currency: JPY in_stock: true reviews_count: 8 category: "Siroflex" url: https://www.desertcart.jp/products/534611876-sx-siroflex-mortar-repair-cement-grey-ready-to-use-repair store_origin: JP region: Japan --- # Water resistant & easy clean-up 300ml ready-to-use cartridge No primer needed, sticks on damp surfaces – SX Siroflex Mortar Repair Cement Grey – Ready to use repair mortar for Pointing jobs & Damaged Masonry Joints - Adheres without primer on Damp Surfaces - Interior & Exterior – 300ml **Brand:** siroflex **Price:** ¥4272 **Availability:** ✅ In Stock ## Summary > 🧱 Fix it fast, fix it smart — the pro’s choice for seamless mortar repair! ## Quick Answers - **What is this?** – SX Siroflex Mortar Repair Cement Grey – Ready to use repair mortar for Pointing jobs & Damaged Masonry Joints - Adheres without primer on Damp Surfaces - Interior & Exterior – 300ml by siroflex - **How much does it cost?** ¥4272 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/534611876-sx-siroflex-mortar-repair-cement-grey-ready-to-use-repair) ## 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 - • **Pro-Level Application:** V-shaped nozzle and high viscosity paste deliver smooth, controlled filling for flawless pointing jobs. - • **Weatherproof Durability:** Water-resistant formula ensures lasting repairs indoors and outdoors. - • **Effortless Precision Repair:** Ready-to-use paste in a convenient 300ml cartridge for quick, mess-free application. - • **Universal Surface Adherence:** Bonds strongly to metal, plastic, stone, and wood without primer—even on damp surfaces. - • **Fast Drying & Easy Maintenance:** Dries quickly with simple water cleanup—get back to your day without hassle. ## Overview SX Siroflex Mortar Repair Cement Grey is a 300ml ready-to-use, high-viscosity acrylic paste designed for quick and durable masonry joint repairs. It requires no primer, adheres well to damp surfaces, and works on multiple materials including metal, plastic, stone, and wood. Ideal for both interior and exterior use, it offers water resistance and easy cleanup, making it perfect for professionals and DIYers seeking efficient, long-lasting results. ## Description From the manufacturer Review: Excellent stuff! - This stuff was excellent. Pretty easy to use and seemed to adhere well. Only time will tell so I’ll submit another review update in about 6 months. It was a good colour match for grey mortar and seems to have dried pretty quickly. The nozzle was wide enough for the mortar and all in all it looks decent for a novice. Pretty cheap for this sort of repair. Make sure you soak the tube in warm water before using as this really helps with easing the application. All in all it’s great! 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 - Ideal for small pointing jobs and removes the need to mix sand and cement. - NO PRIMER REQUIRED - Adheres well to most surfaces without the need for a primer. - EASY TO APPLY - Cut the cartridge seal, attach the supplied V shaped nozzle, and use a good quality applicator gun as the material can be firm straight from the cartridge. - APPLICATION TIPS - Apply only in dry weather and keep the surface dry for at least five hours to allow proper curing. - TEMPERATURE REQUIREMENTS - Ensure both the product and the substrate are above 5°C for best performance. - EASY TO CLEAN - Tools and hands can be cleaned easily with water. - CONTENTS - 1x SX Siroflex Contractors Mortar Repair Cement, 300 ml, Cement grey ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0C69MG58L | | Best Sellers Rank | 229 in DIY & Tools ( See Top 100 in DIY & Tools ) 2 in Cement | | Brand | Siroflex | | Colour | Grey | | Compatible Material | Metal, Plastic, Stone, Wood | | Container Type | Cartridge | | Country Of Origin | Netherlands | | Customer Reviews | 4.1 out of 5 stars 1,270 Reviews | | Global Trade Identification Number | 05032822003575 | | Included Components | 1 x SX Cement Grey Mortar Repair Cement 300ml | | Item Form | Paste | | Item Package Quantity | 1 | | Item Volume | 300 Millilitres | | Item form | Paste | | Manufacturer | Siroflex Lte | | Manufacturer Part Number | SXMORTRC310CG | | Material | Acrylic | | Model Number | SXMORTRC300CG | | Number of Pieces | 1 | | Other Special Features of the Product | Ready to use, no primer required | | Special feature | Ready to use, no primer required | | Specific Uses For Product | Construction and Repair | | Specific uses for product | Construction and Repair | | Unit Count | 300.0 millilitre | | Viscosity Level | High | | Water Resistance Level | Water Resistant | ## 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 Mortar Repair Cement Grey – Ready to use repair mortar for Pointing jobs & Damaged Masonry Joints - Adheres without primer on Damp Surfaces - Interior & Exterior – 300ml - Image 1](https://m.media-amazon.com/images/I/61PISmmrqrL.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent stuff! *by M***N on 7 May 2026* This stuff was excellent. Pretty easy to use and seemed to adhere well. Only time will tell so I’ll submit another review update in about 6 months. It was a good colour match for grey mortar and seems to have dried pretty quickly. The nozzle was wide enough for the mortar and all in all it looks decent for a novice. Pretty cheap for this sort of repair. Make sure you soak the tube in warm water before using as this really helps with easing the application. All in all it’s great! ### ⭐⭐⭐⭐ 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. ### ⭐⭐⭐⭐⭐ Strong but pricey *by P***. on 6 June 2026* This is good stuff but not cheap. Very strong repair to an area consistently hit by car and coach wheels. Holds up well compared with normal concrete ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/534611876-sx-siroflex-mortar-repair-cement-grey-ready-to-use-repair](https://www.desertcart.jp/products/534611876-sx-siroflex-mortar-repair-cement-grey-ready-to-use-repair) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-11*