We get the same call almost every week now. A homeowner in Woollahra or Mosman or Neutral Bay who had their heart set on a Caesarstone benchtop, who had picked the colour, who was ready to go, and who has just been told by their builder that it is no longer available.
The engineered stone ban caught a lot of people off guard. But here is what we tell every single one of those homeowners: this is not bad news. It is the best thing that could have happened to your renovation.
Because what replaces engineered stone is better in every way that matters. We have been working with sintered stone for years, and we have watched it quietly become the preferred surface of Sydney's best architects and interior designers long before the ban made the switch mandatory. Now it is everyone's turn to discover why.
What Actually Happened: The Engineered Stone Ban Explained
On July 1, 2024, Australia became the first country in the world to ban the manufacture, supply, and installation of engineered stone products containing more than one percent crystalline silica. That includes Caesarstone, Silestone, Quantum Quartz, Smartstone, and every other engineered quartz product that has dominated Sydney kitchen renovations for the past twenty years.
The reason is not complicated. Engineered stone contains between 90 and 95 percent crystalline silica by weight. When it is cut and fabricated, it releases fine silica dust. Workers who breathe that dust develop silicosis, a progressive and irreversible lung disease that scars the lungs permanently. Australia was experiencing an epidemic of it among young stonemasons, workers in their twenties and thirties receiving terminal diagnoses.
Safe Work Australia concluded that there is no safe level of exposure. The ban was not cautious. It was necessary.
If you already have an engineered stone benchtop in your home, you are not affected. It is safe to live with and does not need to be replaced. But any new installation from July 2024 onwards must use a different material.
What Is Sintered Stone and Why Is It Different?
Sintered stone is made by taking raw minerals, feldspar, silica, glass, and natural clays, and subjecting them to extreme heat and pressure. What comes out is a fully mineralic material with no polymer resins, no plastic binders, and no organic additives of any kind.
That last part is what makes all the difference. The reason engineered stone became dangerous was the resin binder. The resin is also the reason it scorched under heat, yellowed outdoors, and degraded over time. Remove the resin and every one of those problems disappears.
Sintered stone is legal because the silica it contains is chemically bound into the mineral matrix. When you fabricate sintered stone, it does not release the fine airborne particles that caused silicosis. The material is fundamentally different at a molecular level. Brands you may already know include Dekton, Neolith, Lapitec, and Laminam.
How Does Sintered Stone Perform in a Real Sydney Home?
Hot pots directly on the surface. No marks. Red wine at Friday dinner. Wipe it away. Turmeric from a curry. Gone with a damp cloth. The surface requires no sealing, ever, and can be cleaned with any household product.
Outdoors, sintered stone performs identically to indoors. It is fully UV-stable, which means you can run the same surface continuously from your indoor kitchen through to your alfresco area without a material change or a join. Engineered stone cannot do any of this.
Frequently Asked Questions About the Engineered Stone Ban
Is my existing quartz benchtop safe?
Yes. The ban applies to new installations only. The health risk was to workers fabricating the material, not homeowners living with the finished surface.
Can I still buy engineered stone anywhere in Australia?
No. From July 1, 2024, engineered stone products containing more than one percent crystalline silica cannot be legally manufactured, supplied, or installed anywhere in Australia.
Do I need to seal sintered stone?
No. Sintered stone requires no sealing at installation or at any point during its life.
Can sintered stone go outside?
Yes. Sintered stone is fully UV-stable and designed for outdoor use including outdoor kitchens, pool surrounds, and alfresco surfaces.
See It at Full Size Before You Decide
At our Alexandria showroom, every slab is displayed at full size, 1600 by 3200 millimetres, standing in natural light. A 300mm sample cannot tell you what 3200mm will say. Come and see the full slab. Make the right decision. Full size, full story.
Book your complimentary consultation at duluxmarble.com.au or call our team directly. We are Sydney's end-to-end stone specialists, supplying, fabricating, and installing every surface we sell from our Alexandria showroom.