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🧱 Fix it fast, fix it smart — the pro’s choice for seamless mortar repair!
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.
| 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 |
M**N
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!
C**.
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.
P**.
Strong but pricey
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
M**E
Easy to use, all good 👍
If you have quite a small area to repair this is perfect, I read a review saying it was hard to squeeze out so I gave it a good squeeze and it shot out, so be carefull. I used it to grout / repair my patio, did a good job . All good . It's as thick as regular cement . It dried quite quickly. The colour is on the l8ghter side of buff. Easy to apply all good .
N**A
Not fit for general mortar work
Absolute rubbish. Does not dispense using a standard cartridge gun. Does not adhere to anything. When I actually got anything out of the cartridge it mostly landed on the floor. Probably ok for repointing, but thats as far as it goes
M**W
Leaves the tube easily
This product is great, I returned a similar product from another manufacturer as the cement was so thick it wouldn’t leave the tube. The consistency of this product is great, attached the gun and it came out free and easy, would buy again.
T**R
Not quite cement
Does not willingly adhere to damp surfaces, needed to force it on. Little on the dry side. Not always successful when trying to fix down wall coping, some worked, others didn’t so had to rely on silicone sealant in the end. Would not waste my money on this product ever again. Fed the bin !!!
M**A
mixing your own would be a waste.
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.
Trustpilot
2 weeks ago
2 weeks ago