Materials and technologies

Aristech Acrylics® (USA)

Aristech Acrylics® is a US manufacturer of premium acrylic sheets used to produce shells for hot tubs, pools and wellness equipment. The material is continuously cast acrylic (PMMA – polymethyl methacrylate), characterised by high density, non-porosity and a homogeneous structure. It forms the interior surface of the hot tub, which is in direct contact with water and the user. Bio-Lock® technology gives the surface a reduced ability to retain microorganisms and dirt. The acrylic is also UV-stabilised, which prevents colour degradation and loss of gloss. Combined with fibreglass reinforcement, it forms a strong, durable and dimensionally stable structural component of the hot tub.


Advantages of Aristech Acrylics®

  • Hygienic, non-porous surface: The material does not absorb water, grease or bacteria, which simplifies cleaning and raises the hygiene standard.
  • Long-term colour and visual stability: Resistance to UV radiation prevents yellowing, fading or loss of gloss even after years of use.
  • High mechanical resistance and service life: It withstands microcracking, deformation and chemical damage caused by disinfecting agents.
  • Simple maintenance without aggressive cleaning: The smooth surface allows dirt to be removed with routine wiping, without abrasive cleaning agents.

Frequently Asked Questions

The shell is the most heavily stressed part of the hot tub. Quality acrylic prevents degradation, reduces maintenance and extends the service life of the entire unit.

Yes. Lower-cost acrylics have lower density and are more prone to fading, microcracking and loss of gloss.

The material has no microscopic pores that could absorb dirt or bacteria. This improves hygiene and simplifies cleaning.

With correct construction and reinforcement, the risk is minimal. Most damage results from incorrect installation or mechanical impact.

Typically 15–25 years without significant loss of properties, provided the hot tub is used and maintained correctly.

Yes. The surface is smooth, pleasant to the touch and retains its appearance throughout its service life.

Yes, minor damage can be repaired by polishing or by professional servicing.
Where to find it
Online configurator

Modular system
Precise configuration

Each model is based on a structurally proven foundation.
Configuration takes place within defined variants that maintain stability, safety and material integrity.

The result is a solution that naturally fits into the space and supports long-term regeneration.
50 000+
combinations