Best Filler for Long-lasting Masonry Repairs

Updated Jan 25, 2023 | Posted Aug 20, 2021 | Product Reviews, Sundries | 0 comments

I’ve been a decorator for almost two decades and tend to stick to exterior work during the warmer months. I’m a massive product geek too and have loads of repeat customers, so I know about the longevity of many different fillers on the market.

When working outside, the most important thing for me is how long will a job last before it starts to look tired!! For this reason, I thought I’d do a quick blog for the Decorators Forum UK and explain a bit about what I think is the best filler for long lasting masonry repairs.


The Secret to a Long-Lasting Masonry Repair


I have used several different masonry fillers in the past. A lot of them are too soft or can hold onto too much water. “all-purpose” fillers such as Tretrion and many others can be a nightmare!! This type of filler generally only lasts a year or two before they break down or damage a painted surface.

You need a filler which is going to adhere well to any surface, otherwise it may start to break away over time. You also need a filler which will set rock hard, not hold onto water, and can be overpainted. Anything containing cement is a bonus because you know it will last!! For me, the only reliable and long-lasting filler you should look at is Toupret Rock Solid Repair Filler, formally known as Murex.


About Toupret Rock Solid Repair Filler


Toupret are a French company and seem to have a different filler for every type of job. Being faced with so much choice can be overwhelming, at least you know each product has been developed without compromise.

Toupret Rock Solid Repair Filler is available online and can be used in any size of repair. It will stick like sh1t to any surface, it’s very easy to sculpt into any shape and it dries rock hard!!

There are a couple of drawbacks; This filler needs around 24 hours to cure before you can paint over it due to its cement content. It’s difficult to sand down too, so don’t overfill!!

All told, this is one of the only exterior fillers I have faith in for long lasting repairs, certainly for larger repairs in softer material such as sandstone. Even large patches of render that have come away. Toupret Rock Solid Repair Filler is so much easier to use than traditional render.


Other Toupret Exterior Products


As mentioned above, Toupret seem to have a different niche product for every specific type of job. Even masonry fillers!! Toupret Exterior Skimcoat is brilliant for smoothing over fine surface imperfections and can make large areas look completely flat and blemish free.


Another one to look out for is Toupret Touprelith F. This masonry filler is grey in colour and feels rather grainy. It is a lot easier to use than most other masonry fillers, although it has failed on me in the past. Touprelith F remains porous, so tends to hold onto water. For this reason, I’d steer clear on this product.


Final thoughts


For me, using the right filler is half the battle when you aim to make a long lasting repair. I have learned this the hard way over the years with inferior products. You need something that will adhere to the substrate and won’t break down easily over time. Toupret Rock Solid Repair Filler is the only one I trust.

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The Best Filler for Long-lasting Masonry Repairs – by Mike Gregory

Updated Jan 25, 2023 | Posted Aug 20, 2021 | 0 comments

About the Author

About the Author

Mike Cupit has been in the decorating industry since 2002 and has mostly worked as a Trade Decorator in the domestic sector (peoples’ homes). Self-proclaimed “product geek”, Mike has a passion for paint and decorating tools. Mike now spends most of his time testing paint products and tools, comparing them to similar products on the market, and blogging about the industry in general.


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