The most recent and promising trends in development of renewable sources of energy are Combined Heat and Power (CHP) systems. The newest solutions from this field are hybrid compact solar panels. The correct operation of both systems, i.e. the photovoltaic panel and the heat exchanger requires an effective connection between the two. The adhesives utilized to interconnect above elements should provide a stable and hermetic joint able to withstand mechanical and thermal impacts of the surrounding environment factors. The paper presents the research results over the impact of the type and the amount of reinforcing phase on the physical and mechanical properties of epoxy resin matrix composites reinforced with particles of non-ferrous metals (Ag, Cu, W, Al), dedicated as adhesives for connections between photovoltaic panels and heat exchangers. Based on the experimental findings the usefulness of classical analytic models for valuation of polymer-metal composites properties was validated.
 Y. Takezawa, M. Akatsuka, C. Farren, High thermal conductive epoxy resins with controlled high order structure, Proceedings of the 7th International Conference on Properties and Applications of Dielectric Materials, Nagoya, Japan, June 1-5, 1146-1149 (2003).
 F.F.T. Araujo, H.M. Rosenberg, The thermal conductivity of epoxy-resin/metal-powder composite materials from 1.7 to 300K, Journal of Physics D: Applied Physics 9, 665-676 (1974).
 I.A. Tsekmes, R. Kochetov, P.H.F. Morshuis, J.J. Smit, Thermal Conductivity of Polymeric Composites: A Review, 2013 IEEE International Conference on Solid Dielectrics, Bologna, Italy, June 30-July 4, 678-681 (2013).
 S.I. Rokhlin, D.K. Lewis, K.F. Graaf, L. Adler, Real-time study of frequency dependence of attenuation and velocity of ultrasonic waves during the curing reaction of epoxy resin, The Journal of the Acoustical Society of America 79, 1786-1793 (1986).
 Ł. Wierzbicki, A. Pusz, Thermal conductivity of the epoxy resin filled by low melting point alloy, Archives of Materials Science and Engineering 61, 22-29 (2013).
 F. Rondeaux, Ph. Bredy, J.M. Rey, Thermal Conductivity Measurements of Epoxy Systems at Low Temperature, Cryogenic Engineering Conference (CEC), AIP Conf. Proc. 614, 197 (2002), July 16-20, Madison, Wisconsin, USA (2001).
 A. Smith, S.D. Wilkinson, W.N. Reynolds, The elastic constants of some epoxy resins, Journal of Materials Science 9, 547-550 (1974).
 R. Hill, The elastic behaviour of a crystalline aggregate, Proceedings of the Physical Society 65, 350-354 (1952).
 C.L. Hsieh, W.H. Tuan, Elastic properties of ceramic-metal particulate composites, Materials Science and Engineering 393, 133-139 (2005).
 I.A. Tsekmes, R. Kochetov, P.H.F. Morshuis, J.J. Smit, Modelling the Thermal Conductivity of Epoxy Nanocomposites with Low Filler Concentrations, Annual Report Conference on Electrical Insulation and Dielectric Phenomena, Chenzhen, China, Oct 20-23, 699-702 (2013).
 K. Pietrak, T.S. Wiśniewski, A review of models for effective thermal conductivity of composite materials, Journal of Power Technologies 95, 14-24 (2015).
 E. Rocha-Rangel, Fracture Toughness Determinations by Means of Indentation Fracture, Nanocomposites with Unique Properties and Applications in Medicine and Industry, Dr. John Cuppoletti (Ed.), ISBN: 978-953-307-351-4, 22-38 (2011).
 J.A.V. Gonçalvesa, D.A.T. Campos, G.J. Oliveira, M.L.S. Rosac, M.A. Macêdo, Mechanical Properties of Epoxy Resin Based on Granite Stone Powder from the Sergipe Fold-and-Thrust Belt Composites, Materials Research 17, 878-887 (2014).
 J.L. Jordan, J.R. Foley, C.R. Siviour, Mechanical properties of Epon 826/DEA epoxy, Mechanics of Time-Dependent Materials 12, 249-272 (2008).
 S. Yamini, R.J. Young, Stability of crack propagation in epoxy resins, Polymer 18, 1075-1080 (1977).