Adhesives and sealants are integral materials in the manufacture of structures or components to harness most renewable energy sources. From structural epoxy or urethane adhesives that bond the immense composite blades on wind turbines, to low modulus PSA mastic tapes for sealing flexible thin film photovoltaic modules, to roof membranes, adhesives and sealants have proven themselves capable products. They meet the rigorous performance requirements for the harnessing assemblies and withstanding the harsh, long term service environments wind and solar products typically encountered.
This paper provides an overview of the various adhesive and sealants used in the wind and solar renewable-energy sectors, and briefly discusses the biomass industry. The paper covers the factors used to determine the suitability of each material for a given application, common test methods, and accepted industry standards and specifications.