Hardener for epoxy resin, analogous to PEPA Poly 7

Brand: Европа

Product Code: 29248

In Stock

610.00 грн

/kg

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Hardener for epoxy resin, analogous to PEPA Poly 7 is a composite material based on a hardener and epoxy resin. When mixed, the two undergo a chemical polymerization reaction, forming a strong thermosetting polymer. These systems are characterized by strong adhesion to composites, concrete, metal, and wood, and resistance to mechanical stress, chemicals, and moisture. Epoxy systems are often used in electrical engineering, shipbuilding, construction, mechanical engineering, and the creation of composite products. They are used for flooring, the production of protective coatings, adhesives, laminates, and structural repair. Depending on their composition, epoxy systems can have different temperature resistance, viscosity, and curing times.

The main thing

View by manufacturing method

It is manufactured in several stages at a chemical plant. First, epoxy resin is obtained by reacting epichlorohydrin with bisphenol A or other phenolic compounds. This results in an oligomer with epoxy groups, which is then purified and stabilized. Hardeners—amines, anhydrides, or polyamides—are selected and produced separately, along with various modifiers, plasticizers, and fillers. The components are then dosed and mixed in specified proportions, forming the finished epoxy system. Before use, the resin and hardener are mixed, the polymerization reaction is initiated, and the material gradually cures, forming a durable and chemically resistant polymer.

Chemical composition

The chemical composition of an epoxy system includes several main components. The base is epoxy resin—most often diglycidyl ether of bisphenol A (DGEBA) or similar compounds containing epoxy (oxyrone) groups. The second essential component is the hardener: amines (aliphatic, cycloaliphatic, aromatic), acid anhydrides, or polyamides, which ensure crosslinking of the polymer chains. Additionally, the composition may include curing accelerators, plasticizers, impact modifiers, fillers (quartz sand, talc, microcalcite), pigments, and stabilizers.

Type by purpose

It is used in many industries due to its strength and versatility. In construction, it is used for self-leveling floors, protective and waterproofing coatings, concrete repair, and anchoring. In mechanical engineering and industry, epoxy systems serve as the basis for high-strength adhesives, wear-resistant coatings, and compounds. In shipbuilding and aircraft manufacturing, they are used to manufacture composite parts and repair housings. In electrical engineering, epoxy systems are used for potting and insulating electronic components. They are also in demand in furniture manufacturing, design, mold making, press tooling, and decorative items.

A type

Hardener for epoxy resin

The country of manufacture

Ukraine

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