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Unistone Black Crystal
Unistone Black Crystal is available in a polished finish and a matte texture known as Velluto, with the same robust, durable and scratch-resistant material, outstanding surface finish and low maintenance. Read More
Unistone Black Crystal offers a deep black granite-like base and mirror speckles across the slab. It bounces light off its surface to create a luxurious, brilliant black impression. But instead of grains, the dark quartz worktop with mirrored fragments offers a striking contrast to give your room a contemporary look.
If you’re considering a new worktop, you know many choices are out there. You want something that will look good but also perform well and last a long time. That’s where Unistone Black truly shines. Our Black Crystal quartz worktop is the perfect blend of style and function.
Unistone Black Crystal is ideal for kitchens, living rooms and bathrooms. It is also suitable for hallways and other areas where it will add a touch of extravagant brilliance.
The Shiny Granite-Like Surface that Interior Designers actually like
Stop worrying if your worktops will stain or scratch, and get back to focusing on what matters—keeping the home safe. Unistone’s black quartz offers a non-porous countertop with a low 0.05% water absorption rate so that no liquids can go into the stone.
Weighing 30% less than black granite, you can design pretty much everything you can think of, large panels and walls look stunning with seamless work surfaces.
With a modern look and monochrome style, you can combine this black quartz countertop with any other colour you like. In addition, Unistone Black Crystal is available in a matte finish known as Velluto, with the same robust, durable and scratch-resistant material with an outstanding surface finish and low maintenance.
Start using the kitchen in minutes.
You might say that Unistone has serious credibility with London homes and businesses. That is because it creates every new surface carefully, helping users across England follow the best culinary practices and never, ever let bacteria into its structure.
When it comes to maintenance, there is not much to it. A simple wipe with a damp cloth or sponge will suffice. A Unistone Black Crystal worktop is easy to clean. It’s 100% hygienic and beautiful to look at. Our Unistone kitchen surfaces are also available in numerous colours and finishes, so you can pick the finish that best matches your taste.
Kitchen and Bathroom Surfaces That Never Harbour Bacteria
Our Black Crystal kitchen and bathroom worktops and walls are impervious to acids and highly resistant to household chemicals. Its non-absorbent body helps avoid the proliferation of germs, bacteria, and anything in between. To protect the durability of the shiny surface -and ensure they stay super shiny, we recommend using a glass cleaning spray and a microfibre cloth.
To enquire about Unistone Black Crystal quartz worktops, click HERE now!
The tests below by BretonStone in Italy demonstrate the advantages of Unistone over other worktop materials.
PERFORMANCE FEATURE | UNISTONE | GRANITE | LAMINATE | SOLID SURFACES |
Scratch Resistant | Excellent | Good | Excellent | Fair |
Stain Resistant | Excellent | Good | Good | Excellent |
Chip and Crack Resistant | Excellent | Good | Good | Excellent |
Heat and Burn Resistant | Good | Good | Good | Good |
Resistant to Household Chemicals, Acids and Solvents | Excellent | Good | Good | Excellent |
Low Maintenance | Excellent | Good | Good | Fair |
Non-absorbent and Non-porous | Excellent | Good | Good | Excellent |
Mould and Mildew Resistant | Excellent | Good | Good | Good |
Flexural Strength | Excellent | Fair | Good | Good |
Colour Consistency | Excellent | Fair | Excellent | Excellent |
Immunity to Freeze and Thaw | Excellent | Excellent | Fair | Fair |
SPECIFICATIONS | TEST METHOD | RESULT |
---|---|---|
Water Absorption (% by weight) |
ASTM C97/C97M-09:2009 EN 14617-1:2013 |
≤ 0.05% ≤ 0.06% |
Apparent Destiny |
ASTM C97/C97M-09:2009 EN 14617-1:2013 |
2.2 - 2.4 gr/cm3 |
Flexural Strength |
ASTM C880/C880M-09:2009 EN 14617-2:2008 |
> 40 MPa |
Electrical Stability | EN 14617-13:2013 |
Volume resistance (Rv) = 0.9 x 1034Ω Volume resistance (Pv) = 4.88 x 1014Ωm |
Impact Resistance |
ASTM D1709:2015 EN 14617-9:2005 |
≥ 3.0 J |
Compressive Strength | EN 14617-15:2005 | ≥ 155 MPa |
Mohs Scale of Hardness | EN101 | 6.0 - 7.0 |
Resistance to Deep Abrasion |
ASTM C1243:2009 EN 14617-5:2012 |
The volume of chord: V ≤ 195 mm3 |
Freeze-Thaw Resistance |
ASTM C1026:2013 EN 14617-5:2012 |
No defects after 15 freeze-thaw cycles No defects after 25 freeze-thaw cycles |
Slip Resistance at Honed 400 | DIN 51130:2004 | R9 - R10 |
Microbial Resistance | ASTM D 6329:2015 | Ranking 3: Resistant to Mould Growth |
Chemical Resistance to Acids | EN 14617-10:2012 | Class C4 |
Thermal Shock Resistance | EN 14617-6:2012 | No visual defects after 20 cycles |
Determination of Resistance to Boiling Water |
AS 2924.2-7: 1998 (EQUI. TO ISO 4586.2-7: 1997) |
Effect on the surface (rating):5 (no visible change) |
Determination of Resistance to Dry Heat |
AS 2924.2-8: 1998 (EQUI. TO ISO 4586.2-8: 1997) |
Effect on the surface (rating):5 (no visible change) |
Determination of Resistance to Staining |
AS 2924.2-15: 1998 (EQUI. TO ISO 4586.2-15: 1997) |
Effect on the surface (rating):5 (no visible change) |
As the legal owner of a Unistone surface, you are insured by Brachot-Hermant UK for ten years against product faults under everyday use and servicing.
The 10-year warranty from Unistone is automatically active. The best part is that you don't need to answer questionnaires.
When raising a claim, you will need a copy of your Worktop Library invoice as proof of purchase.
The factory producing Unistone is in the Thach That neighbourhood of Hanoi, Vietnam's Hoa Lac High-Tech Park. It has been manufacturing quartz surfaces since 2002.
The closest matches providing a suitable alternative to Unistone Black Crystal are Compac Nocturno quartz, Compac Astral Azabache, Silestone Stellar Nero and CRL Quartz Midnight.
Unistone Black Crystal is an engineered surface. As such, it doesn't require natural stone products or maintenance. It is generally more economical than black granite because it is lighter in weight and quicker to fabricate and install
RETURNS AND SHIPPING POLICY RETURNS
Except for damaged surfaces, all sales are final. Please call 020 39760029 or email [email protected] for more information before mailing exchanges or online purchasing return products installed in faulty or damaged condition.
SHIPPING \ TURNAROUND
We process all orders within one business day. However, specific stones may have longer lead times due to high demand or special-order items from other countries.
DELIVERY & INSTALLATION COSTS
We compute delivery and installation costs at the time of purchase. Our team of professional stone fitters install all stone surfaces.
Installation and delivery charges vary depending on weight, site access, and delivery location from our workshop in West London, United Kingdom.
INSTALLATION & DELIVERY ADDRESSES
Stone worktop installation and up to 150 miles of surrounding areas are available in London. Don't hesitate to contact our Worktop Library Service Team at (20) 39760029.
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