All our Hot Tubs are cladded with first class dark Thermowood. The 20mm thick Thermowood in this case only has a decorative function. In case you do not treat the Thermowood it will automatically get a silver-grey colour after some time. This creates a very natural and authentic look.
Once you will be using your Hot Tub and hot water will flow over the edge, the wood will get back its dark brown colour.
It is adviced to oil the wood twice a year, i. e. in case you wish to maintain its dark brown colour.
We may recommend to use "Vesting wax oil".