Лако-красочные материалы — производство

Cyanoacrylate adhesives are colorless, solvent-free, rapidly polymerizing and cold­setting one-part structural adhesives. The moisture contained in the air initiates curing, while light pressure contact generates a thin film that sets within seconds, making these adhesives particularly well suited for small and plane surfaces. Activators can be employed to accelerate the curing process or to enable bonding on critical surfaces.

Very good bond strengths are achieved with cyanoacrylate adhesives on a wide variety of materials, including metals, plastics (e. g. ABS, PVC, polyamide, PC) and elastomers [e. g. ethylene propylene diene rubber (EPDM), styrene butadiene rubber (SBR) and fluorinated rubber], as well as glass, ceramics, wood, leather and cork. These adhesives can be classified according to their suitability for a specific type of material (elastomers, plastics, metals) or according to their viscosity (ranging from very good to nonflowing), and have a good resistance to aging, temperature and chemicals. They are applied dropwise, either manually or by means of metering devices.

According to specific fields of application, cyanoacrylate adhesive products can be classified into the following groups:

• Bonding of profiles, round cords, and so on, made from solid or foamed rubber (elastomers that are difficult to bond such as EPDM, and fluoroelastomers such as Fluorel™ and Viton).

• Joining of plastic materials, elastomers as well as porous materials such as wood, cork and leather.

• Bonding of metals such as iron, steel, nonferrous heavy metals and light metals.

Activators for cyanoacrylate adhesives accelerate curing and make it possible to bond materials that are less adhesive-friendly and that give an acid reaction, such as wood and cork. The use of activators also prevents the exudation of plastic parts.