ARALDITE GY 282

ARALDITE GY 282 is a liquid, hot-curing, impregnating resin system based on Bisphenol F for coil impregnation.
ARALDITE GY 282 is a low-viscosity liquid epoxy resin based on bisphenol-A diglycidyl ether (DGEBA) chemistry.
ARALDITE GY 282 is designed for general-purpose and high-performance epoxy systems requiring good mechanical strength, chemical resistance, and processing flexibility.

CAS number: 25068-38-6
EC number: 500-033-5
Molecular formula: C21H24O4

Synonyms: Epichlorohydrin–bisphenol A resin, Diglycidyl ether of bisphenol A, BPA-based epoxy resin, Poly(bisphenol A-co-epichlorohydrin), Epoxy resin type 1 (liquid), Standard liquid epoxy resin, Difunctional epoxy resin, BPA epoxy polymer, Bisphenol A epoxide resin, Bisphenol A diglycidyl ether, DGEBA resin, Bisphenol A epoxy resin, Liquid epoxy resin (BPA type)

ARALDITE GY 282 is a liquid epoxy resin based on diglycidyl ether of bisphenol-A (DGEBA) technology, developed for versatile industrial epoxy formulations.
ARALDITE GY 282 is characterized by relatively low viscosity at room temperature, which allows easy handling, efficient mixing, and excellent wetting of fillers, pigments, and reinforcing fibers.
This processing advantage makes ARALDITE GY 282 particularly suitable for coatings, adhesives, casting systems, and composite applications where flowability and uniform dispersion are critical.

The molecular structure of ARALDITE GY 282 contains two reactive epoxide groups per molecule, enabling controlled crosslinking when cured with appropriate hardeners such as aliphatic amines, cycloaliphatic amines, polyamides, or anhydrides.
The resulting thermoset network provides balanced mechanical strength, adhesion, and chemical resistance.
Compared to multifunctional novolac epoxy resins, ARALDITE GY 282 offers lower crosslink density but improved flexibility and impact resistance, which can be advantageous in applications requiring toughness rather than extreme heat resistance.

Cured systems based on ARALDITE GY 282 demonstrate strong adhesion to a wide range of substrates including metals, concrete, wood, and composite materials.
ARALDITE GY 282 provides good resistance to water, dilute acids, alkalis, and many industrial chemicals.
ARALDITE GY 282's electrical insulation properties also make it suitable for encapsulation and potting compounds in electrical and electronic applications.

Due to its formulation flexibility, ARALDITE GY 282 can be modified with reactive diluents, fillers, flexibilizers, or thixotropic agents to tailor viscosity, curing speed, mechanical performance, and thermal properties.
ARALDITE GY 282 is widely used in industrial flooring systems, protective coatings, structural adhesives, and fiber-reinforced composite matrices where reliable performance and processing efficiency are required.

ARALDITE GY 282, used alone or blended with bisphenol A or bisphenol A/F epoxy resins in combination with polyamine hardeners, is recommended for solvent-free coatings, impregnations, floorings, and trowelling compounds applied to steel and concrete substrates.
Additionally, when combined with aromatic diamines, GY 282 is suitable for advanced composite applications manufactured via RTM and filament winding.

ARALDITE GY 282 is a liquid, hot-curing, impregnating resin system based on Bisphenol F for coil impregnation.

ARALDITE GY 282 is an unmodified epoxy resin based on bisphenol-F with low viscosity.
ARALDITE GY 282 is an aero grade.

ARALDITE GY 282 is used in exterior vehicle (OEM), interior vehicle (OEM), vehicle assembly (OEM), structural assembly, battery cover sealing & battery assembly, cable sealing, motor and magnet bonding, potting and encapsulating, assembly.
Other suggested applications are thermally & electrically conductive, household appliance assembly, sporting goods, marine, rail, recreational vehicle, truck, sport & leisure and wind.

ARALDITE GY 282 is a low-viscosity liquid epoxy resin based on bisphenol-A diglycidyl ether (DGEBA) chemistry.
ARALDITE GY 282 is designed for general-purpose and high-performance epoxy systems requiring good mechanical strength, chemical resistance, and processing flexibility.

Due to its relatively low viscosity, ARALDITE GY 282 provides excellent wetting of fillers and reinforcing fibers, making it suitable for coatings, adhesives, casting, and composite applications.
When cured with appropriate hardeners such as amines or anhydrides, ARALDITE GY 282 forms a durable thermoset network with strong adhesion and balanced mechanical properties.

Uses of ARALDITE GY 282:
ARALDITE GY 282 is used in industrial protective coatings requiring good adhesion and chemical resistance.
ARALDITE GY 282 is applied in structural and general-purpose adhesive formulations.

ARALDITE GY 282 is incorporated into casting and potting compounds for electrical insulation.
ARALDITE GY 282 is utilized in fiber-reinforced composite matrices for balanced strength and toughness.

ARALDITE GY 282 is formulated into industrial flooring and construction systems.
ARALDITE GY 282 is used in repair mortars and bonding layers for concrete substrates.

Advantages of ARALDITE GY 282:
ARALDITE GY 282 provides low viscosity for easy processing and improved filler wetting.
ARALDITE GY 282 delivers excellent adhesion to metals, concrete, wood, and composites.

ARALDITE GY 282 offers balanced mechanical strength with good toughness and impact resistance.
ARALDITE GY 282 ensures reliable chemical resistance against water, dilute acids, and alkalis.

ARALDITE GY 282 allows flexible formulation with various curing agents and modifiers.
ARALDITE GY 282 supports efficient mixing and uniform dispersion in coating and casting systems.
ARALDITE GY 282 provides consistent curing performance under ambient or elevated temperature conditions.

Processing of ARALDITE GY 282:
ARALDITE GY 282 is easy to process due to its low viscosity and good flow characteristics at room temperature.
ARALDITE GY 282 is mixed thoroughly with a compatible curing agent in the recommended stoichiometric ratio to ensure proper crosslink formation.

Fillers, pigments, and other additives can be incorporated gradually under controlled agitation to achieve homogeneous dispersion.
For casting or encapsulation applications, vacuum degassing is often applied to remove entrapped air and improve final product quality.

The formulated system can be applied by brush, roller, spray, or casting methods depending on viscosity and application requirements.
Curing may occur at ambient or elevated temperatures depending on the selected hardener, and post-curing can be used to enhance thermal and mechanical performance.
Proper control of mixing temperature and pot life is important to manage the exothermic reaction and maintain consistent processing conditions.

Stability and Reactivity of ARALDITE GY 282:

Chemical stability:
Stable under normal storage and handling when kept sealed and protected from moisture or contamination.

Reactivity:
Reacts exothermically with curing agents such as amines, polyamides, and anhydrides during curing.

Conditions to avoid:
Excessive heat.
Direct sunlight.

Moisture ingress.
Contamination.
Uncontrolled mixing with hardeners.

Incompatible materials:
Strong oxidizing agents.
Strong acids.
Strong bases.

Hazardous decomposition products:
Carbon oxides (CO, CO₂).
Irritating fumes during combustion or thermal decomposition.

Handling and Storage of ARALDITE GY 282:

Handling:
Avoid skin and eye contact.
Avoid inhalation of vapors or mists.

Use adequate ventilation.
Wash hands after handling.
Do not eat, drink, or smoke while handling.

Storage:
Store in a cool, dry, well-ventilated area in tightly closed original containers.

Storage conditions:
Protect from moisture and heat sources.
Keep away from oxidizers.
Reseal promptly after use.

First Aid Measures of ARALDITE GY 282:

Inhalation:
Move to fresh air.
Keep at rest.
Seek medical attention if symptoms persist.

Skin contact:
Remove contaminated clothing.
Wash skin thoroughly with soap and water.

Eye contact:
Rinse cautiously with water for at least 15 minutes.
Remove contact lenses if easy.
Seek medical attention if irritation persists.

Ingestion:
Rinse mouth.
Do not induce vomiting.
Seek medical advice, especially if large amounts are swallowed.

Firefighting Measures of ARALDITE GY 282:

Suitable extinguishing media:
Foam.
Dry chemical powder.

Carbon dioxide (CO₂).
Water spray.

Specific hazards:
Combustible.
May produce toxic and irritating smoke or gases when burning.

Protective equipment:
Self-contained breathing apparatus.
Full protective clothing.

Accidental Release Measures of ARALDITE GY 282:

Personal precautions:
Wear appropriate personal protective equipment.
Ensure ventilation.
Avoid contact with spilled material.

Environmental precautions:
Prevent entry into drains, soil, and waterways.

Methods for cleaning up:
Contain spill.
Absorb with inert material such as sand or vermiculite.

Collect in suitable containers for disposal.
Clean residue with approved solvent if permitted.

Exposure Controls / Personal Protection of ARALDITE GY 282:

Engineering controls:
Local exhaust ventilation, especially during mixing, spraying, or heated operations.

Respiratory protection:
Use appropriate respirator if ventilation is insufficient or aerosol or vapor is generated.

Hand protection:
Chemical-resistant gloves such as nitrile, neoprene, or butyl rubber.

Eye protection:
Safety goggles or face shield.

Skin protection:
Protective clothing.
Avoid prolonged or repeated contact.
Wash exposed skin after work.

Identifiers of ARALDITE GY 282:
Blend: No
Chemical Family: Epoxy & Epoxy Derivatives
Function: Binder & Resin
Yes: Technologies
CAS number: 25068-38-6
EC number: 500-033-5
Molecular formula: C21H24O4
Appearance: Clear to pale yellow liquid

Properties of ARALDITE GY 282:
Viscosity at 25°C: Low to medium viscosity
Density at 25°C: Approximately 1.15–1.20 g/cm³
Chemical Family: Epoxy & Epoxy Derivatives
Product Functions: Binder
Material Compatibility: Metal Substrate, Mineral Substrate
Glass Transition Temperature (Tg): 133.0 - 147.0 °C
Physical Form: Liquid

Epoxy Equivalent Weight: 166.0-176.0: g/eq
Elongation: 7.5 %: 
Flexural Strength: 109.0 MPa: 
Tensile Strength: 83.5 MPa
Density: 1.18: g/cm³: at 25°C
Flash Point: min. 93.0°C
Flash Point: min. 200.0°C: 
Glass Transition Temperature (Tg)1: 147.0°C
Glass Transition Temperature (Tg)2: 133.0°C
Viscosity: 3000.0-4000.0 mPa.s