Porcelain

Caesarstone® 546 Thalassa

Caesarstone® 546 Thalassa is a large-format porcelain slab from the Israeli premium manufacturer Caesarstone, from the Lioli Porcelain line (Supernatural Collection). The slab shows a sandy warm, calm creamy beige base tone with subtle granular mineral structures and occasional delicate fossil-like structures – inspired by a Mediterranean sandy beach or a warm dimension-stone limestone. At ROSSITTIS we fabricate Thalassa into heat- and acid-proof kitchen worktops, islands, wall claddings, floor coverings, bathroom fit-outs and outdoor kitchens with a warm, elegant Mediterranean dimension-stone appearance.

A large-format porcelain slab (sintered stone / porcelain) from the Caesarstone Lioli Porcelain line, from the Supernatural Collection – not a naturally formed stone and not engineered quartz (Caesarstone's Quartz Surfaces line is clearly to be distinguished from it), but a fully mineral, through-sintered large-format porcelain of feldspar, quartz, clay minerals and pigments without polymer binders. The “546 Thalassa” variant presents a calm, warm, sandy dimension-stone composition with subtle granular mineral structures – stylistically an allusion to a Mediterranean sandy beach (the Greek word “Thalassa” that gives it its name means sea) or to a warm dimension-stone limestone.

Porcelain India

Available as: Slabs

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About Caesarstone® 546 Thalassa

Background. Caesarstone® is the Israeli premium brand for surface materials, founded in 1987 at Kibbutz Sdot Yam and today present worldwide. The manufacturer's range holds three clearly separated product lines: the historical Quartz Surfaces line in engineered quartz (around 90 % quartz particles + 7 – 10 % polyester resin), the Mineral™ line launched in 2024 as a low-silicosis-risk further development, and the Lioli Porcelain line in fully mineral, through-sintered large-format porcelain. Thalassa (code 546) belongs to the Lioli Porcelain line – in the Caesarstone code system this is the Supernatural Collection with nature-inspired surface designs.

Material build-up and manufacture. A Caesarstone Lioli porcelain slab consists of practically 100 % mineral raw materials – feldspar, quartz, clay minerals and pigments – without polymer binders. The mixture is compacted in a pressing process, provided with decorated pigment layers for the surface appearance and then sintered at temperatures above 1,200 °C in a tunnel kiln. In this sintering, the mineral particles partly fuse into a closed crystalline mineral structure – the end product is a fully mineral, through-sintered slab without any resin content. From this arise decisive technical advantages over Caesarstone's own Quartz Surfaces line: very high heat resistance (hot pots can be set down directly), full UV resistance and hence suitability for external use, frost resistance and almost complete acid resistance.

Appearance. The base tone is a warm sandy cream beige to light beige-pink dimension-stone beige with a subtle golden shimmer and sandy warm undertones. Fine granular mineral structures with subtle lighter and darker tonal points are distributed evenly across the surface, giving the slab a calm Mediterranean sandy-beach appearance. Here and there, delicate, barely visible fossil-like structures can be made out, which look like very finely integrated shell or coral fragments. From a medium distance the variant appears almost single-coloured in a warm, creamy, sandy tone; from close up one discovers the fine pigmented dimension-stone structure. Stylistically, Thalassa is an allusion to a Mediterranean sandy beach (the Greek word “Thalassa” that gives it its name means sea) or to warm travertine and dimension-stone limestone variants with a calm, fossil-integrated appearance.

Formats and thicknesses. Caesarstone Lioli supplies the slabs in the jumbo format 1,600 × 3,200 mm in thicknesses of 6, 12 and 20 mm. The 6 mm slab is particularly suited to wall claddings, furniture fronts and bonded applications, the 12 mm slab is the standard thickness for wall and floor, and the 20 mm slab is standard for kitchen worktops and heavily used floor applications. ROSSITTIS stocks Thalassa in 12 mm thickness.

Thermal and chemical properties. Unlike Caesarstone's Quartz Surfaces line, there is no polyester resin here – which removes the typical weaknesses: Thalassa is heat-proof (hot pots can be set down directly, the slab is insensitive well above 200 °C), almost completely acid-proof (wine, lemon, tomato, vinegar leave no marks) and fully UV-stable (suitable for external use). Frost and weather resistance are given. Water absorption: very low (below 0.1 %, as is typical of porcelain).

Certificates. Caesarstone Lioli is GREENGUARD Gold certified (very low VOC emissions, suitable for schools and care facilities), approved for direct food contact to NSF and EU Food Contact, and produced under environmental management to ISO 14001.

ROSSITTIS range. We stock Thalassa with the stone-textured standard finish held in depth, in 12 mm thickness; further thicknesses and finishes from the Caesarstone Lioli programme are available on request. From the slabs we fabricate kitchen worktops, islands, bar counters, buffet and furniture panels, wall claddings, bathroom fit-outs (vanity tops, wall and floor applications, showers with proper waterproofing), window sills, skirtings, internal and external floors and façade elements.

Comparison. Within the Caesarstone Lioli Supernatural line, Thalassa positions itself as the calmest, sandy Mediterranean beige variant. A more powerfully veined sister variant with a similarly warm tonality is Opal Taj (code 584, fluid veining). Compared with genuine warm beige dimension stones such as Bateig Diamante (Spanish calcarenite), Apulia Beige (southern Italian limestone) or Crema Marfil (Spanish marble), Thalassa is predictable and plannable with full acid resistance – the natural stone originals appear geologically more authentic, but are acid-sensitive (calcitic) and require sealing. Within the large-format porcelain market, Thalassa competes with Laminam (Italian), Neolith (Spanish), Dekton (Cosentino group, Spanish) and SapienStone (Italian).

Frank assessment. Thalassa is the ideal choice for any application calling for a calm Mediterranean sandy dimension-stone appearance together with technical capability. The variant works particularly strongly as a kitchen worktop and island in warm Mediterranean kitchen schemes, as an outdoor kitchen surface, as a bathroom fit-out in elegant wellness areas and as a wall cladding in light-filled living spaces. Anyone looking for more dramatic veining should reach for Caesarstone Lioli Calacatta-oriented variants or for Opal Taj; anyone who prefers an authentic, acid-sensitive dimension-stone limestone with individual batch variation should switch to Bateig Diamante or Apulia Beige.

In stock

Current availability from our warehouse.

29 large-format slabs in stock · plus 1 block

Thicknesses: 1.2 cm · Finishes: stone · Available as: Slabs

Updated daily from our live stock.

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Finishes

Caesarstone® 546 Thalassa is available in a range of finishes. The finish affects appearance, feel and the care it needs.

Stone

A special finish on Caesarstone ceramic: matt, with a more uneven and rougher surface. The feel is modelled on split-rough and brushed natural stone. Easy to care for.

Care & fabrication

Cleaning. In everyday use, warm water, a soft cloth or a clean mop and a neutral to slightly alkaline pH cleaner are sufficient. Suitable are mild all-purpose cleaners, mild washing-up liquid foam and all commercially available sanitary and kitchen cleaners without hydrofluoric acid (HF). The porcelain is almost completely acid-proof – even vinegar, citric and hydrochloric acid practically do not attack the slab. Take up spilt liquids promptly, because on the warm creamy surface dried drops with dark pigment (coffee, red wine, black tea) can remain visible as lighter or darker films; the material itself, however, is non-porous and therefore stain-proof.

Do not use. Hydrofluoric acid (HF) and fluoride-containing cleaners are the only class of substance that can genuinely attack porcelain – they occur practically only in industrial glass and stone cleaners and are not relevant in the household. Aggressive scouring sponges or abrasive pastes are likewise out of the question, because they can scour the textured surface matt.

Sealing. Not required – porcelain is dense and non-porous in itself, water absorption is below 0.1 %.

Warm beige slabs – particular care notes. On a warm, creamy, sandy slab, wiping streaks, dried water drops and coffee or wine splashes can become more clearly visible as lighter or darker films than on textured surfaces. On kitchen worktops we recommend a consistent wipe-after routine with a soft microfibre cloth and the prompt taking-up of pigmented liquids.

Kitchen and bathroom. In kitchen and bathroom use, technically almost unbeatable: hot pots can be set down directly for a short time, acids such as vinegar, wine, lemon and tomato leave no marks, and anti-limescale sprays and all commercially available sanitary cleaners are approved. NSF and EU Food Contact certified for direct food contact.

Floor and wall. Internal floors in large format or tile format, wall claddings in the thinner 6 mm slab with bonded installation, bar counters and furniture panels – all applications are approved. For floor applications with water contact we recommend proper waterproofing in accordance with DIN 18534.

Outdoors and frost. Fully suitable. The slab is UV-stable, frost- and weather-resistant and can be used as a rear-ventilated façade panel, external wall cladding, outdoor kitchen surface and external floor covering.

Scratches and repair. Porcelain is very hard (around Mohs 7) and therefore markedly more scratch-resistant than most natural materials. Deeper damage cannot simply be polished out – repair is carried out by replacing the affected workpiece.

Frequently asked questions

What kind of material is Caesarstone® 546 Thalassa?

A large-format porcelain slab (sintered stone / porcelain ceramic) from the Caesarstone Lioli Porcelain line, from the Supernatural Collection – not a naturally formed stone and not engineered quartz. Mineral raw materials (feldspar, quartz, clay minerals, pigments) are compacted in a pressing process without polymer binders and sintered above 1,200 °C in a tunnel kiln. The “546 Thalassa” variant shows a warm sandy cream beige base tone with calm granular mineral structures and subtle fossil-like structures.

How does Caesarstone Lioli differ from the classic Caesarstone Quartz Surfaces line?

Caesarstone offers three product lines: Quartz Surfaces (engineered quartz of around 90 % quartz + 7 – 10 % polyester resin, the classic Caesarstone material), Mineral™ (a low-silicosis-risk further development of Quartz Surfaces since 2024) and Lioli Porcelain (fully mineral, through-sintered large-format porcelain without any resin content). Thalassa belongs to the Lioli Porcelain line – which makes the slab heat-proof (hot pots can be set down directly), UV-stable and suitable for external use; properties that the resin-containing Quartz Surfaces line lacks.

What does the name “Thalassa” refer to?

“Thalassa” is ancient Greek for sea and refers to the calm Mediterranean sandy-beach appearance of the variant. The warm, creamy, sandy composition with its subtle fossil-like structures recalls a sun-warmed Mediterranean beach or a warm dimension-stone limestone.

Which slab formats and thicknesses does Caesarstone Lioli offer?

The standard format is 1,600 × 3,200 mm (jumbo) in thicknesses of 6, 12 and 20 mm. The 6 mm slab is particularly suited to wall claddings, furniture fronts and bonded applications, the 12 mm slab is standard for wall and floor, and the 20 mm slab is standard for kitchen worktops and heavily used floor applications. ROSSITTIS stocks Thalassa in 12 mm thickness.

What certificates does Caesarstone Lioli have?

GREENGUARD Gold certified (very low VOC emissions), NSF and EU Food Contact approved for direct food contact, ISO 14001 for environmentally managed production.

Is Thalassa suitable for outdoor kitchens, façades and pool surrounds?

Yes, fully. Porcelain is UV-stable, frost- and weather-resistant and can be used as a rear-ventilated façade panel, external wall cladding, outdoor kitchen surface and external floor covering. The warm sandy look suits Mediterranean outdoor kitchen schemes particularly well.

Which cleaners may I use?

Permitted are warm water, all neutral, alkaline or mildly acidic cleaners, mild all-purpose cleaners and all commercially available sanitary and kitchen cleaners. The slab is almost completely acid-proof. Out of the question are exclusively hydrofluoric acid (HF) and fluoride-containing cleaners – these are not relevant in the household. Aggressive scouring sponges can scour the textured surface matt and are likewise to be avoided.

Thalassa or a genuine dimension-stone limestone such as Bateig Diamante?

Thalassa (porcelain) is more even, more plannable, acid-proof and fully UV-stable – the rational choice for kitchen worktops, external applications and heavily used internal surfaces with minimal care. Bateig Diamante (Spanish calcarenite) appears geologically more authentic with individual batch variation and has a track record of over 100 years in Spanish Modernismo architecture, but is acid-sensitive (calcitic) and has a high porosity (5.8 % water absorption) – not suitable for kitchen worktops. The choice is one between a calm, elegant stone appearance with minimal care (porcelain) and geological authenticity for façade applications with a higher care effort (natural limestone).

What does Caesarstone® 546 Thalassa cost?

The price depends on the format, thickness, surface finish and fabrication — there is no serious flat rate per square metre. Business customers see prices once their B2B account is activated; private customers receive a complete quote through a fabricator near them.