NOVELTY - Forming (M1) a barrier, involves: (a) providing a glass flake loaded curable organic material (K1) comprising at least one curable organic material, and glass flakes (5-95 vol.%); (b) applying the glass flake loaded curable organic material to at least one first substrate; and (c) curing the curable organic material to form a barrier, where the glass flakes have an aspect ratio of 2-100 and a length of 0.1-2000 microns.    USE - For forming barrier i.e. a hermetic seal, which is used in photovoltaic device, sealed assembly and hermetically sealed device, for forming solar cell module; and for sealing active layer selected from solar cell, solar cell contact, organic PV device, plasma display device, nanocrystal display, electrochromic device, electrochromic material system, suspended particle device, micro-blind, liquid crystal device, smart window, switchable window, smart glass, eglass, light emitting device, Service-Enabled device (SED), field emission display (FED), organic light-emitting diode (OLED), liquid crystal display (LCD), DLP, flow limiting device (FLD), interferometric modulator display (IMOD), TDEL, QDLED, TMOS, transient-protection-device (TPD), LCL, lightning protection device (LPD), and organic light emitting transistors (OLET) (claimed).    ADVANTAGE - The method improves the hermeticity of organic-inorganic hybrid seals; and uses relatively low curing temperature, thus the low-temperature or even room-temperature curing, crack formation in the substrate and overheating of the device are non-issues.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following:    (1) a photovoltaic device comprising two inorganic substrates that are joined by a barrier seal formed by the method (M1);    (2) a barrier made by the method (M1);    (3) a sealed assembly comprising at least one cavity, where the cavity is formed by at least two substrates sealed together with a cured composition comprising, prior to curing, at least one curable organic material and glass flakes (5-95 vol.%);    (4) hermetically (M2) sealing an object, involving providing a glass flake loaded curable organic material comprising at least one curable organic material and glass flakes (40-70 vol.%), applying the glass flake loaded curable organic material to at least a portion of the surface of the object, and curing the curable organic material to form a film or sheet over at least a portion of the surface of the object;    (5) a hermetically sealed device comprising at least two substrates, and a cured glass flake loaded organic material (K1) between at least a portion of at least two substrates, at least two substrates and cured glass flake loaded curable organic material, forming a hermetically sealed cavity; and    (6) forming (M3) a solar cell module involving: (a1) laying down in a frame, in order: (i) a backsheet layer, an adhesive layer, at least one solar cell, a transparent pottant layer and a transparent superstrate layer, or (ii) a backsheet layer, a backside pottant layer, at least one solar cell, an adhesive layer and a transparent superstrate layer, or (iii) a backsheet layer, a first encapsulant layer, at least one solar cell, a second encapsulant layer and a transparent superstrate layer, to form an assembly, where (b1) at least one of the layer includes a glass flake loaded curable organic material (K1), and (c1) curing the curable organic material by applying an energy source selected from thermal, UV, visible, laser, broadband infrared laser, flame induction, ultrasound, natural gas burners, magnetic induction heating, and eddy currents.