When using the product in the sauna, cracks are very easily created in it. When glued, the tree does not tolerate the extreme conditions of the sauna well, without it living and then cracks appear, especially at the ends of the pieces. When using a sauna, the temperature of the board surface shall not increase above 85°C, lest the resistance of the adhesive seam be compromised. The emergence of cracks can be reduced by paraffin oil or sauna wax treatment.

We do not recommend using products in public or daily heated saunas, since the adhesive seam cracks in these items easily.

Product shade deep dark brown. The tone differs significantly from other thermal aspen products. Oiling further deepens the tone and protects the wood. The product temporarily acquires a violet nuancing tone when oiling. The color returns to completely dark brown most often in about 3-30 days, depending on the amount of oil used, the amount of use of the sauna, as well as the temperature (if installed in the sauna) and the amount of uv light.