Araldite GY 783

Araldite® GY 783 is a low-viscosity, crystallization-resistant epoxy resin based on bisphenol-A/F and modified with a reactive diluent. It is designed for use in a variety of applications, particularly in the formulation of solvent-free coatings, flooring screeds, and mastics. When combined with polyamines, polyamidoamines, or their adducts as cross-linking agents, Araldite GY 783 offers a versatile foundation for creating materials with specific performance characteristics.

Key features and properties of Araldite GY 783 include:

1. Low Viscosity: This characteristic makes it easy to process and apply, ensuring good workability in various applications.
2. Crystallization Resistance: Unlike some other epoxy resins, Araldite GY 783 does not crystallize out, even under unfavorable conditions, ensuring consistent performance and longevity.
3. Good Mechanical Properties: Coatings based on Araldite GY 783 exhibit robust mechanical properties, making them suitable for demanding applications.
4. Chemical Resistance: These coatings are resistant to a wide range of chemicals, enhancing their durability and versatility.
5. Flexibility: Araldite GY 783 is particularly recommended for flexible coatings and membranes due to its easy flexibilizing action.
6. Epoxy Index and Equivalent: The specified epoxy index and equivalent weight provide important information for formulating and calculating the correct mix ratios with hardeners and other additives.

Araldite GY 783 is supplied as a clear liquid with a specific gravity of around 1.13 g/cm³ and a flash point of approximately 130°C. It has a shelf life of several years when stored between 2°C and 40°C. Upon disposal, it may decompose to produce hazardous gases including carbon monoxide, carbon dioxide, nitrogen oxides, and other toxic vapors. Therefore, disposal should be carried out in accordance with local regulations and guidelines.

This product is an example of the advanced epoxy resins available for use in industrial and construction applications, offering a balance of processability, performance, and environmental safety.