See-Through Baths for Wollongong & Illawarra Bathrooms
A see-through bath is the rarest thing you can put in a bathroom — a tub you look through, not just at. Cast from a light-transmitting resin stone, it glows when the afternoon sun tracks across an Illawarra ensuite and reads like a sculpted piece of coloured glass the rest of the time. It’s a genuine statement, and in the Wollongong and South Coast homes we work with — the ones with an ocean outlook, a big north-facing window, or a freestanding tub set as the room’s centrepiece — it’s the kind of detail that makes a bathroom unforgettable. This is one of the specialist niches within our full Spas & Baths range, and if a solid-surface statement is more your speed, our freestanding baths and space-savvy inset & back-to-wall baths cover the rest of the room.
One bath, three translucent tints. To be completely straight with you: the see-through range here is a single Cassa Design product — the Wow Translucency Resin Stone Bath — offered in a spread of translucent colourways. The three finishes below (Crystal Clear, Amber Brown and Sky Blue) are the same tub in a differently tinted resin, not three separate models. Same shape, same sizes, same specs, same price — the only choice you’re making is which colour the light comes through. We’ve shown them separately so you can see how differently each one behaves against the light.
Crystal Clear — The Truest Glass-Bath Look
Crystal Clear is the purest expression of the idea — a genuinely transparent freestanding tub cast from UV-stabilised translucent resin stone, so it reads like solid glass rather than a coloured feature. In a bright Wollongong bathroom it almost disappears, letting the tiles, the view and the light do the talking; fill it and the water itself becomes the colour. It’s an Italian-minimalist oval on a plinth base, non-porous and surprisingly substantial, with real cast weight (100kg in the 1500mm, 110kg in the 1650mm) that gives it the heft of glass. Comes in two sizes — 1500 × 750 × 580mm and 1650 × 780 × 580mm — with a centre waste hole, no overflow, and a 10-year shell / 5-year parts warranty. If you want a see-through bath that looks like nothing else in the room, this is the one.
Amber Brown — Warm, Jewel-Like Glow
The same Wow Translucency tub in Amber Brown swaps clarity for warmth — a tinted translucent resin that turns a deep, glowing amber when light passes through it, like a slab of polished cognac. It’s the finish that makes the most of an Illawarra afternoon: set it in a window and the low sun lights the whole shell from within. Underneath the colour it’s identical to Crystal Clear — the same 1500mm (190L, 100kg) and 1650mm (210L, 110kg) oval, centre waste, no overflow, non-porous surface and 10-year shell warranty. If you want your see-through bath to be unmistakably the hero of the room, Amber Brown is the one that draws the eye.
Sky Blue — Cool, Coastal Translucency
Sky Blue is the third tint of the same bath — a pale, glassy blue that reads almost clear in shade and lifts to a soft, watery translucency with light behind it. It’s the most naturally coastal of the three, echoing the South Coast palette that so many Wollongong renovations already lean into, and it sits beautifully against warm timber or sandy stone tiles. Specs don’t change: two sizes (1500 × 750 × 580mm and 1650 × 780 × 580mm), 190L and 210L capacities, 100kg / 110kg cast weight, centre waste, no overflow, and the same 10-year shell / 5-year parts cover. Choose it for a calmer, more restrained take on the see-through statement.
How Translucent Resin Stone Works — And Living With It
So what actually lets you see through it? Unlike a traditional cast-stone or acrylic bath, which is fully opaque, the Wow Translucency shell is cast from a light-transmitting resin stone — a UV-stabilised polymer resin blended with fine mineral fillers and poured into a mould as a single, solid piece. Because the resin is engineered to pass light rather than block it, the finished shell behaves like tinted glass: light enters one side, travels through the wall of the tub and glows out the other, which is exactly why it looks so different at dawn, at midday and under warm evening lighting. The UV stabiliser matters too — it’s what keeps the tint from yellowing or clouding in a sun-flooded room, and it’s the reason a translucent bath belongs somewhere with real natural light. If you’re planning the glazing around it, our guide to maximising natural light in a bathroom is worth a read before you finalise the layout.
Living with one is easier than it looks. The surface is non-porous, so it doesn’t harbour grime and wipes down with a soft cloth and mild soap — skip abrasive pads and harsh cleaners, which can scuff any solid-surface material and dull the see-through clarity. The trade-off to know up front: this tub has no overflow and a centre waste, so it’s built to be filled thoughtfully rather than left unattended, and its solid cast weight (100–110kg empty, plus ~190–210L of water) means the floor structure needs to suit — worth confirming with your builder on an upper-storey Wollongong install. For where a see-through bath sits against the more common solid-surface options, our bathtub buying guide covering freestanding, inset and back-to-wall lays out the choices side by side. Want to see one in the flesh before you commit? Bring your plans into our Unanderra showroom and we’ll talk you through it.
