Radianz premium engineered quartz · Hanwha (Korea)
Excelsior Silver Radianz Quartz
Excelsior Silver Radianz is part of the Radianz line by Hanwha (South Korea), a premium engineered-quartz brand carried by ST Stones. Radianz is known for finer aggregate consistency and a clean, gallery-grade polish across its color range. Radianz carries a manufacturer warranty per Hanwha's published terms. We confirm current warranty details and slab availability during the in-home consultation.
About Excelsior Silver Radianz
Excelsior Silver Radianz quartz - what to know
Character
How Excelsior Silver Radianz reads in a kitchen
Excelsior Silver Radianz has silver metallic flecks over a gray base — adds a subtle sparkle in raking light without crossing into busy territory.
South Florida fit
Why quartz works in our climate
Quartz is one of the strongest countertop choices for Palm Beach County kitchens. The surface is non-porous (so it won't absorb spills the way a natural stone can), it's highly heat-resistant up to the typical countertop range, and it shrugs off humidity — no sealing required, ever. Excelsior Silver Radianz ships with the same maintenance profile as every other quartz in this catalog.
Pairings
Cabinetry, hardware, and design context
Excelsior Silver Radianz works with most South Florida cabinet palettes — bring your cabinet sample to the consultation and we'll lay it next to the slab in person. We always recommend laying the actual slab next to your cabinet sample before final commitment — quartz photographs differently from how it reads in person under your kitchen's actual lighting.
Specs at a Glance
Excelsior Silver Radianz - quick reference
| Material | Quartz |
|---|---|
| Color family | Gray/Silver |
| Series / line | Radianz |
| Thickness | 2CM or 3CM available |
| Slab format | Standard slab format (confirmed at consultation) |
| Finish | Polished |
| Care | Daily wipe with mild soap; no sealing required (non-porous engineered surface) |
| Best applications | Perimeter counters, islands, bathroom vanities |
| Service area | All Palm Beach County, FL - free in-home consultation |
Cabinet Pairings
Best paired with Excelsior Silver Radianz
Our top cabinet recommendations for a Gray/Silver quartz countertop, hand-picked from the Excelsior install palette we use most often in Palm Beach County.
Related slabs
Other Radianz and Gray/Silver options
Compare Materials
Considering something other than Excelsior Silver Radianz?
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Where we install Excelsior Silver Radianz - and what to read next
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Get In Touch
Quote on Excelsior Silver Radianz
Let's build something beautiful together.
Interested in Excelsior Silver Radianz quartz? Request a free in-home consultation and we'll price your kitchen or bathroom with this slab — itemized quote, 3D rendering, no obligation.
Sat: By appointment
Frequently Asked Questions
Common questions about Excelsior Silver Radianz
Does Excelsior Silver Radianz need to be sealed?
No. Quartz is engineered (roughly 90–93% natural quartz aggregate bound with resin) and is non-porous, so it never needs sealing. Wipe daily with mild soap and water; avoid harsh abrasives and leaving acidic spills (citrus, vinegar) sitting on the surface for extended periods.
Is Excelsior Silver Radianz heat resistant?
Quartz handles brief heat contact well, but the resin binder can discolor under prolonged direct heat. Use a trivet for hot pots and pans straight off the stove. Don't set a heat-treated cast-iron skillet directly on the slab. No quartz is heat-proof in the way a true natural stone or solid-surface stone like soapstone is.
What's the warranty on Excelsior Silver Radianz?
Excelsior Silver Radianz ships with the Radianz manufacturer warranty. We'll confirm the exact current warranty terms with the distributor during your project so you have the current language in writing.
Countertop care, fabrication, and certification standards referenced on this page follow guidelines from the Natural Stone Institute, the NKBA — National Kitchen + Bath Association, and the ISFA — International Surface Fabricators Association.