One bonding method for wood-based materials is cross-lamination or finger-jointing, in which polyurethane adhesives are used. This creates wooden panels that retain their strength, shape and functionality. To make these bonds more sustainable, Covestro provides Henkel with polyurethane-based materials that are based on bio-attributed raw materials. Henkel then uses these for high-performance adhesive solutions.
Mass balance method proves sustainable raw materials
Both Henkel and Covestro treat sustainability and the promotion of a circular economy as a high priority. For Covestro, broadening the raw material base with bio-based or recycled solutions is important. Alternative raw materials are mixed with conventional raw materials in the chemical production process, making it difficult to clearly assign them to individual products. For this reason, the alternative raw material is allocated to the end products using the mass balance approach. This method, which is certified in accordance with the ISCC PLUS standard, makes it possible to document traditional and alternative raw materials in accounting terms across all processing steps and allocate them to products. For the new wood adhesive, all Henkel and Covestro sites and partners involved are certified according to this standard.