ARALDITE EPN 1183

ARALDITE EPN 1183 is a multifunctional epoxy novolac resin developed for high-performance thermosetting systems requiring enhanced thermal resistance, chemical durability, and mechanical strength.
ARALDITE EPN 1183's molecular structure is based on a phenolic novolac backbone containing multiple reactive glycidyl ether (epoxy) groups.
ARALDITE EPN 1183 is a medium-viscosity, modified, solvent-free, polyfunctional epoxy resin.

Synonyms: Polyglycidyl ether of phenolic novolac, EPN 1183 resin, Novolak epoxy polymer, Epoxidized phenolic novolac resin, Multifunctional phenolic epoxy resin, High-functionality epoxy resin, Chemical-resistant novolac epoxy, Polyepoxide novolac resin, Advanced phenolic epoxy system, Epoxy novolac resin, Phenolic novolac epoxy resin, Phenol-formaldehyde novolac glycidyl ether

ARALDITE EPN 1183 is a high-functionality epoxy novolac resin specifically engineered for advanced thermosetting systems that demand superior performance under chemically aggressive and high-temperature conditions.
ARALDITE EPN 1183's molecular structure is based on a phenolic novolac backbone containing multiple reactive glycidyl ether (epoxy) groups.
This multifunctional configuration enables the formation of densely crosslinked polymer networks during curing, resulting in enhanced mechanical strength, thermal stability, and long-term chemical durability.

Compared to conventional bisphenol-A epoxy resins, ARALDITE EPN 1183 offers significantly improved resistance to corrosive chemicals such as strong acids, alkalis, solvents, and petroleum derivatives.
The higher crosslink density achieved during polymerization increases glass transition temperature (Tg) and reduces molecular mobility, which enhances dimensional stability and creep resistance under mechanical load and thermal cycling.
These properties make ARALDITE EPN 1183 particularly suitable for demanding industrial environments including chemical processing plants, refineries, marine structures, and heavy-duty infrastructure systems.

In protective coating formulations, ARALDITE EPN 1183 improves barrier properties by minimizing permeation of moisture and corrosive substances, thereby extending substrate service life.
In composite applications, ARALDITE EPN 1183 contributes to improved compressive strength and structural integrity when combined with reinforcing fibers such as glass or carbon fiber.
ARALDITE EPN 1183 also demonstrates excellent adhesion to steel, concrete, and mineral substrates, supporting its use in structural adhesives, corrosion-resistant linings, and industrial flooring systems.

ARALDITE EPN 1183 is typically supplied as an amber to brown high-viscosity resin and may require controlled heating for optimized processing and blending.
When properly formulated and cured with compatible hardeners, ARALDITE EPN 1183 delivers reliable long-term performance in high-performance epoxy systems where durability, heat resistance, and chemical stability are critical requirements.

ARALDITE EPN 1183 is a medium-viscosity, modified, solvent-free, polyfunctional epoxy resin.
ARALDITE EPN 1183 is a modified epoxy phenol novolac with medium viscosity.

ARALDITE EPN 1183 has a functionality of 3.3. Possesses short pot life, outstanding drying and good flexibility. Provides resistance to chemicals, acids and xylene.
ARALDITE EPN 1183 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, thermally & electrically conductive, household appliance assembly, sporting goods, medical device assembly, aircraft & aerospace, marine, rail, recreational vehicle, truck, sport & leisure and wind in adhesive applications.

ARALDITE EPN 1183 is a multifunctional epoxy novolac resin developed for high-performance thermosetting systems requiring enhanced thermal resistance, chemical durability, and mechanical strength.
Based on a phenolic novolac backbone, ARALDITE EPN 1183 contains multiple epoxide groups per molecule, enabling the formation of highly crosslinked networks during curing.

This structure provides improved glass transition temperature, superior resistance to aggressive chemicals, and strong mechanical performance compared to conventional bisphenol-A epoxy resins.
ARALDITE EPN 1183 is widely used in protective coatings, corrosion-resistant linings, electrical laminates, and advanced composite applications where long-term reliability under harsh conditions is required.

Uses of ARALDITE EPN 1183:
ARALDITE EPN 1183 is used in high-performance protective coatings exposed to aggressive chemical environments.
ARALDITE EPN 1183 is applied in corrosion-resistant tank linings and pipeline coatings.

ARALDITE EPN 1183 is incorporated into composite matrices requiring elevated thermal resistance and structural strength.
ARALDITE EPN 1183 is utilized in electrical laminates and insulation systems with high glass transition temperature requirements.

ARALDITE EPN 1183 is formulated into heavy-duty industrial flooring systems exposed to mechanical and chemical stress.
ARALDITE EPN 1183 is used in structural adhesives for bonding metals, concrete, and mineral substrates.

ARALDITE EPN 1183 is used for coating of tanks, secondary containments, drip pans and floors where fuels and solvents are stored and handled.
ARALDITE EPN 1183 is used for fast-drying coatings / floorings.

Advantages of ARALDITE EPN 1183:
ARALDITE EPN 1183 provides high crosslink density for enhanced mechanical durability.
ARALDITE EPN 1183 delivers superior chemical resistance against acids, alkalis, solvents, and fuels.

ARALDITE EPN 1183 offers elevated thermal stability and high glass transition temperature after curing.
ARALDITE EPN 1183 improves corrosion protection in harsh industrial environments.

ARALDITE EPN 1183 ensures excellent adhesion to steel, concrete, and composite substrates.
ARALDITE EPN 1183 enhances dimensional stability and resistance to thermal cycling.
ARALDITE EPN 1183 increases compressive and flexural strength in structural applications.

Processing of ARALDITE EPN 1183:
ARALDITE EPN 1183 is typically processed by first gently heating the resin to reduce its viscosity and improve handling characteristics.
ARALDITE EPN 1183 is then mixed thoroughly with a compatible curing agent, such as an amine or anhydride, in the recommended stoichiometric ratio to ensure proper crosslink formation.

Fillers, pigments, and performance additives may be incorporated under controlled agitation to achieve uniform dispersion.
For casting or encapsulation applications, vacuum degassing is often applied to remove entrapped air and improve final product integrity.

The formulated system can be applied by brush, roller, spray, or casting methods depending on viscosity and application requirements.
Curing may occur at ambient temperature or under elevated temperature conditions, with post-curing often used to maximize glass transition temperature and chemical resistance.
Proper temperature control during mixing and curing is essential to manage the exothermic reaction and achieve optimal performance properties.

Stability and Reactivity of ARALDITE EPN 1183:

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 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 or toxic fumes during combustion or thermal decomposition.

Handling and Storage of ARALDITE EPN 1183:

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

Use adequate ventilation.
Follow good industrial hygiene practices.
Wash hands after 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 EPN 1183:

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 EPN 1183:

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 EPN 1183:

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 EPN 1183:

Engineering controls:
Local exhaust ventilation, especially during heating, mixing, or spraying 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 EPN 1183:
CAS number: Proprietary mixture
EC number: Not available
Molecular structure: Glycidyl ether of phenolic novolac
Appearance: Amber to dark brown viscous resin

Blend: No
Chemical Family: Epoxy & Epoxy Derivatives
Function: Binder & Resin,Binder & Resin
Product Functions: Binder
Single Ingredient: Yes
Technologies: CASE

Properties of ARALDITE EPN 1183:
Epoxide functionality: Multifunctional
Viscosity at 25°C: High viscosity resin
Functionality: 3.
Density: 1.18: g/cm³ at 25°C
Flash Point: min. 150.0°C
Flash Point: min. 150.0°C
Viscosity: 7000.0-13000.0 mPa.s at 25°C
Viscosity: 7000.0-13000.0 mPa.s