An adhesive is a substance capable of holding at least two surfaces together in a firm and stable manner. Adhesion is a state in which two surfaces are held together by interfacial forces, which may include van der Waals forces or bonding forces. An adhesive's tackiness is dependent on its adhesive forces. Some adhesives have good adhesion due to having groups with stronger van der Waals attractions. Today, most adhesives have relatively complex formulations consisting of various components. The selection of these components in an adhesive's composition depends on the required final properties and cost, and includes a combination of the base polymer, solvents, fillers, pigments, stabilizers, plasticizers, and other additives.

Essentially, an adhesive must wet the surface; that is, it must spread out on it and form a contact angle close to zero with the substrate surface. The adhesive must also cure or harden to form a uniform, cohesive solid. This process can occur through a chemical reaction or by the evaporation of water or a solvent.

Solvent-based adhesives are a mixture of solvents and cross-linked polymers based on silicones, polyurethanes, acrylics, polychloroprene, natural and synthetic rubbers (elastomers), or thermoplastic polymers. In these adhesives, the solvent helps achieve uniform mixing with other adhesive components by reducing viscosity, ultimately making the adhesive easier to apply to the substrate. To achieve desired properties in adhesive formulations, a mixture of organic solvents is often used.

Solvent-based adhesives are generally the best option for materials where substrate bonding is difficult or when a long-lasting adhesive is required. These adhesives are very durable and form strong bonds. The key features of solvent-based adhesives include chemical resistance, a fast bonding process, tolerance to a wide temperature range, and high bond strength. Solvent-based adhesives are applied with a brush, roller, or spray, or they can be applied manually.

Iran Industrial Resins Research Group's solvent-based adhesives are formulated with a foundation of synthetic rubbers, PVC, and polychloroprene (CR). With the ability to customize product formulations, the company is able to meet the diverse needs of various industries across the country, as follows: