Hot tub tubs compared: why the material really makes a difference

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Acrylic tubs: smooth gloss, but not built to last

At first glance, acrylic tubs seem like an attractive choice. They look sleek and glossy. No wonder that many brands - working primarily with mass production - choose these tubs. But behind that beautiful shiny tub secretly lurks quite a few drawbacks.

An acrylic tub is constructed from a thin plastic sheet that is vacuum formed into shape. For added strength, a backing layer of fiberglass or plastic is added afterwards. This construction focuses primarily on appearance rather than content quality. 

Because although acrylic looks very attractive visually, in practice the material turns out to have some limitations. And especially in an outdoor environment - where the hot tub is exposed to sun, moisture, temperature differences and intensive use - the drawbacks quickly become apparent. 

The disadvantages of acrylic

• Top coat is purely aesthetic - the acrylic itself adds nothing to the strength of the tub.
• Delamination hazard - the bond between the acrylic sheet and the backing layer is technically complex and prone to loosening.
• Scratch prone - fine scratches occur quickly and are difficult to repair without color or gloss differences.
• Limited forming freedom - vacuum forming allows only simple, standard shapes; ergonomics is often secondary.
• Less insulating - heat loss is faster due to thin layers and limited build-up.
• Not optimal for outdoor use - acrylic discolors faster, can develop micro cracks and is more susceptible to UV damage.
• Prone to overheating - at high temperatures, certain elements in the material can dissolve, causing permanent damage to the tub and rendering it unusable.
  
  

HDPE and LDPE tubs: inexpensive, but not for the long term

You are bound to come across this material too when orienting for hot tubs; models with a tub made of HDPE (High Density Polyethylene) or LDPE (Low Density Polyethylene). These types are often used in inexpensive or entry-level models. The reason? They are quick and cheap to produce, lightweight and machine moldable.

Looking purely at price, this seems like an attractive choice. But in practice, these materials clearly come with limitations. Especially if you are looking for a luxurious wellness experience that will last for years. 

The plastic base makes them less sophisticated in appearance, and because they consist of standard shapes, comfort is usually limited. In addition, they are more susceptible to scratching, discoloration and structural deformation - especially with prolonged outdoor use.

Disadvantages of HDPE/LDPE tubs:

• Less aesthetically pleasing - the appearance is often simple and plastic-like, with no luxurious finish.
• Standard shapes - machine production leaves little room for ergonomic seating comfort.
• Susceptible to scratching and discoloration - especially when exposed to sunlight and weathering.
• Not self-supporting - the tub often needs additional support to maintain its shape.‍
• Limited life - more susceptible to deformation, hairline cracks and wear.

🔥 7 reasons why our hot tub tubs are better than all the alternatives:

1. Completely self-supporting
   The tub is strong enough on its own and does not need a metal frame to stay in shape. That means: fewer parts, less chance of wear and tear, and a robust unit that can take a beating.
   
   
2. Constructed from A-quality materials
   We work with high-quality coatings, such as BÜFA® Marine Gelcoat and VE-barriercoat - materials that are also used in yacht building. They offer excellent protection against UV, moisture and osmosis.
   
   
3. No adhesion problems
   Because our tubs are homogeneously constructed, all layers form one strong whole. No risk of detaching top layers or delamination, as with acrylic or plastic tubs.
   
   
4. Scratch-resistant, UV-resistant and colorfast
   The finish withstands life outdoors: sun, rain, frost, cleaning agents and intensive use. Even after years, your tub will retain its color, shine and quality.
   
   
5. Comfortable and ergonomic
   Thanks to our own molds and artisanal production method, we can design tubs with flowing lines, comfortable seat shapes and smart layouts. No hard corners or standard seats, but truly customized relaxation.
   
   
6. Smartly insulated
   Thanks to solid construction and smart material choices, the water in our tubs stays hot longer. That means: less energy consumption, more comfort, and always ready to step in.
   
   
7. Sustainable and circular
   Our tubs are made to last, but also with an eye to the future. They are hard-wearing, low-maintenance and - if necessary - locally repairable. So you avoid waste and enjoy your investment longer.

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