Natural sealant from merz+benteli for ecological and environmentally friendly construction and other applications. Merbenature is a particularly resource-friendly SMP-based sealant. it consists of over 50% renewable raw materials. A further 45% of the ingredients are of mineral origin. Merbenature is therefore particularly sustainable and, in addition to its climate-friendly effect, protection against heat and cold loss, makes an important contribution to reducing CO2 emissions. Merbenature can be used universally indoors and outdoors and is easy to apply.