A new soluble support filament could make post processing cleaner, if users are willing to follow a rather specific fluid recipe.
Effervex Materials, a Luxembourg startup focused on specialty polymers for desktop additive manufacturing, has introduced AquaLux S, a support material for FFF systems that reportedly dissolves only in carbonated water within a defined dissolved CO2 range. The company is pitching it as a premium option for users printing cosmetic prototypes, architectural models, and display parts where support scarring can ruin the whole point of the print.
At first glance, the material sounds like a familiar extension of current desktop AM practice. Support removal remains one of the more annoying parts of the workflow, especially on dual extrusion jobs with internal channels, decorative overhangs, or fine surface details. Existing soluble supports can work, but they often come with tradeoffs: moisture sensitivity, nozzle compatibility issues, slow dissolution, messy residue, or interface settings that require a small act of faith before every print.
Effervex says AquaLux S is meant to reduce those compromises. The company describes it as a co polyester support blend tuned for PLA class model materials, with nozzle settings in the 215C to 225C range and bed conditions similar to standard low warp FFF workflows. It is reportedly compatible with enclosed dual nozzle systems from vendors such as Bambu Lab, Prusa, and UltiMaker, although the company has not yet published a full machine by machine compatibility list. That leaves a few obvious questions on purge volume, ooze control, interface adhesion, and whether the material behaves consistently across long warm builds.
Cleaner Supports, More Controlled Removal
The mechanism, at least as described, is plausible enough. Effervex says AquaLux S remains dimensionally stable in ordinary water but begins to soften when exposed to a narrow carbonic acid window created by dissolved CO2. Once activated, the support structure swells, develops internal microfractures, and separates from the model surface more cleanly than typical water soluble materials. The claim is not that supports vanish instantly, but that they release with less gummy residue and less manual scraping.
That could matter for service bureaus and design studios where labor is often more expensive than filament. If a support material reduces cleanup time on fragile concept models or glossy presentation parts, then the economics improve quickly. A shop does not need dramatic time savings to care. Cutting even ten or fifteen minutes of fiddly hand finishing from each print job adds up over a month.
Effervex also says AquaLux S is less hygroscopic than some existing soluble supports, which would make it easier to handle in general workshop conditions. The company did not provide hard moisture uptake figures, dissolution speed benchmarks, or long term storage data, so that claim still needs proof. Throughput numbers were also absent, and that is the sort of omission AM buyers tend to notice.
Then Comes The Real Business Model
Up to that point, AquaLux S reads like an interesting specialty filament story. Then the launch materials take a turn.
Effervex strongly recommends pairing the material with its own SparkPure branded processing fluid, a line of batch certified carbonated waters sold in liter bottles and multi pack refill kits. The company argues that exact carbonation levels and mineral balance are required for repeatable support removal, particularly on dense interfaces and fine features. AquaLux S itself is expected to sell for US$79 per 500 g spool, which is premium but not shocking. SparkPure, however, is where the product strategy starts to come into focus.
Effervex plans subscription delivery options, studio refill bundles, and what it calls “dissolution assurance tiers” for higher volume users. In plain language, the company seems to have developed a support filament that just happens to require a steady supply of branded sparkling water. One begins with an advanced polymer story and ends with a consumables annuity.
That may sound cheeky, but it also fits a broader AM trend. Machine margins get squeezed. Materials help. Validated materials help more. A validated support fluid subscription, complete with certified bubbles and replenishment plans, is exactly the kind of idea that would make a finance team sit up very straight in their chairs.
There are still plenty of unknowns, including third party fluid compatibility and whether supermarket sparkling water can do the same job at a fraction of the cost. Effervex has not said. For now, AquaLux S looks like a thoughtful support material wrapped around an even more thoughtful water business. In additive manufacturing, even the rinse cycle may now have recurring revenue targets.
