Recycling of non-recyclable plastic materials is an agenda theme of modern society. There are many different objects made of thermosetting composites. Also, these materials are used in different parts of machines. Epoxy binders are widely used to obtain matrix material for composites. Materials with such matrices have long life cycle, up to 50 years. Even after that period it will not degrade. Mane recycling methods of polymer composites with thermoset matrix are mechanical and thermal, but they are not effective. Reinforcing fillers loses their properties after that. Chemical methods such as solvolysis are more prospective. This methods could obtain reinforcing fillers in their original form and save their properties. This work present results of recycling fiberglass reinforcing materials with epoxy matrix using solvolysis technique. Pyridine were used as a solvent. Composite material swelling extensively in solvent at the normal conditions. Swelling degree is 38%. Solvolysis at the 115 °C, 1 h let to obtain sheets of fabrics after material delamination. Tensile strength of recovered glass fibers is 91% of origine fibers. New composites were produced with use of recovered sheets fiberglass fabric. Flexural strength of this reduced on 29.7%.