The deformation-strength (strength and plasticity) and dilatometric properties (contraction or volume shrinkage) of binary composites of food paraffin P-1 and the polymers low-pressure polyethylene, polyethylene waxes, atactic polypropylene, and copolymers of ethylene and vinylacetate are investigated. The structural and mechanical properties of the polymer-paraffin composites are plotted as functions of composition. The dependences of these properties on the content of modifying component in the P-1 composites are compared.