ARALDITE EPN 1180

ARALDITE EPN 1180 is a multifunctional epoxy novolac resin developed for high-performance thermosetting systems requiring exceptional chemical resistance and elevated thermal stability.
ARALDITE EPN 1180 is typically supplied as an amber to brown high-viscosity liquid or semi-solid material and may require controlled heating for optimized processing and blending.
ARALDITE EPN 1180 bonds effectively to steel, concrete, glass fibers, and other mineral substrates, supporting its use in structural adhesives and advanced composite matrices.

CAS Number: 28064-14-4

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

ARALDITE EPN 1180 is a high-functionality epoxy novolac resin designed for demanding thermosetting applications that require enhanced thermal stability, chemical resistance, and long-term structural durability.
Unlike conventional bisphenol-A based epoxy systems, ARALDITE EPN 1180 is built on a phenolic novolac backbone, which provides multiple reactive epoxide groups within each molecule.
This multifunctional structure enables the formation of tightly crosslinked polymer networks during curing, resulting in superior mechanical strength and resistance to aggressive service conditions.

The high crosslink density achieved with ARALDITE EPN 1180 significantly improves glass transition temperature (Tg), heat distortion resistance, and dimensional stability.
Cured systems demonstrate strong resistance to acids, alkalis, solvents, fuels, and moisture, making ARALDITE EPN 1180 particularly suitable for chemical processing environments, industrial flooring systems, tank linings, and heavy-duty protective coatings.
ARALDITE EPN 1180's robust barrier properties reduce permeation of corrosive substances and enhance substrate protection over extended service life.

In composite applications, ARALDITE EPN 1180 contributes to improved compressive strength, creep resistance, and mechanical integrity under thermal cycling.
ARALDITE EPN 1180 bonds effectively to steel, concrete, glass fibers, and other mineral substrates, supporting its use in structural adhesives and advanced composite matrices.
ARALDITE EPN 1180 is typically supplied as an amber to brown high-viscosity liquid or semi-solid material and may require controlled heating for optimized processing and blending.

Due to its multifunctional epoxy architecture and proven durability, ARALDITE EPN 1180 is widely selected for high-performance industrial systems where reliability, chemical endurance, and elevated temperature capability are critical performance requirements.

ARALDITE EPN 1180 epoxy phenol novolac resins contain more than two epoxy groups per molecule and can be described as multifunctional epoxy resins.
Due to the increased epoxy functionality, ARALDITE EPN 1180 is provide a high cross-link density when properly cured.
Systems based on ARALDITE EPN 1179 epoxy phenol novolac resins or ARALDITE EPN 1180 epoxy phenol novolac resins possess better chemical and high temperature resistance than those based on standard bisphenol A epoxy resins.

ARALDITE EPN 1180 is recommended for high-performance applications requiring good chemical and solvent resistance.
When combined with suitable curing agents (i.e. polyamines, novolacs and anhydrides), ARALDITE EPN 1180 can be used as the sole resins, or in blends with bisphenol A and F epoxy resins, to upgrade the performance of the latter.

ARALDITE EPN 1180 is a multifunctional epoxy novolac resin developed for high-performance thermosetting systems requiring exceptional chemical resistance and elevated thermal stability.
Based on a phenolic novolac backbone, ARALDITE EPN 1180 contains multiple epoxide groups per molecule, enabling the formation of highly crosslinked polymer networks when cured with appropriate hardeners.

Compared to standard bisphenol-A epoxy resins, ARALDITE EPN 1180 provides improved heat distortion temperature, superior solvent resistance, and enhanced mechanical durability.
ARALDITE EPN 1180 is widely used in protective coatings, corrosion-resistant linings, electrical laminates, and heavy-duty industrial applications where long-term performance in aggressive environments is required.

Uses of ARALDITE EPN 1180:
ARALDITE EPN 1180 is used in high-performance protective coatings requiring superior chemical and thermal resistance.
ARALDITE EPN 1180 is applied in corrosion-resistant tank linings and pipeline coatings exposed to aggressive chemicals.

ARALDITE EPN 1180 is incorporated into heavy-duty industrial flooring systems subjected to mechanical and chemical stress.
ARALDITE EPN 1180 is utilized in composite matrices demanding high crosslink density and structural strength.

ARALDITE EPN 1180 is formulated into structural adhesives for bonding metals, concrete, and mineral substrates.
ARALDITE EPN 1180 is used in electrical laminates and insulation systems requiring elevated glass transition temperature.

In composite manufacturing, ARALDITE EPN 1180 is applied in filament winding, laminating resins, and advanced composite structures that demand enhanced heat resistance and structural integrity.
ARALDITE EPN 1180 is also used in electrical laminates, encapsulation systems, tooling applications, epoxy mortars, mastics, and structural adhesives where dimensional stability and long-term durability are critical.

Alone or in combination with liquid or solid bisphenol-A epoxy resins, ARALDITE EPN 1180 and its solutions can be used for the production of low-solvent coatings showing very high resistance to chemicals and solvents.
Suitable Aradur are particularly aliphatic polyamines and their adducts. 

ARALDITE EPN 1180 can also be used in:
Two-component, room-temperature cure, forced-cure or heat-cure systems, solvent-containing, high solids, solvent-free or waterborne coatings.

The heat-curable systems produce the ultimate performance (chemical and thermal resistance).
This is due to more complete reactions with the curing agents at higher temperatures, and overcoming the stearic hindrance of the multifunctional epoxy resins.

Advantages of ARALDITE EPN 1180:
ARALDITE EPN 1180 provides higher crosslink density compared to standard bisphenol-A epoxy resins.
ARALDITE EPN 1180 delivers excellent chemical resistance against acids, alkalis, fuels, and solvents.

ARALDITE EPN 1180 offers superior thermal stability and elevated glass transition temperature after curing.
ARALDITE EPN 1180 enhances corrosion protection in aggressive industrial environments.

ARALDITE EPN 1180 ensures strong adhesion to steel, concrete, and composite substrates.
ARALDITE EPN 1180 improves mechanical performance, including high compressive and flexural strength.

ARALDITE EPN 1180 increases dimensional stability and resistance to thermal cycling.
ARALDITE EPN 1180 extends service life in heavy-duty coating and lining systems.

Properties of ARALDITE EPN 1180:
ARALDITE EPN 1180 is a polyfunctional resin characterized after curing by a high crosslinking density.
Formulations based on ARALDITE EPN 1180 or its solutions exhibit high reactivity.
Cure at ambient temperature gives adequate film properties, but post-cure at 40 to 60 °C increases cross-linking and consequently improves resistance to chemicals and temperature.

Compatibility and Dilution of ARALDITE EPN 1180:
ARALDITE EPN 1180 and its solutions are fully compatible with modified and unmodified epoxy resins based on bisphenol-A as well as with aliphatic and aromatic reactive diluents.
They are likewise miscible with most commercially available polyamines and their adducts.
Compatibility with polyamidoamines such as the Aradur 815-2, 825-2, 840-2 is limited. 

Production of ARALDITE EPN 1180:
ARALDITE EPN 1180 is produced through a controlled two-stage chemical synthesis process involving phenolic novolac formation followed by glycidylation.

In the first stage, phenol reacts with formaldehyde under acidic conditions to form a phenolic novolac resin.
This reaction generates a multifunctional aromatic backbone containing multiple hydroxyl groups, which serve as reactive sites for further modification.

In the second stage, the novolac resin reacts with epichlorohydrin in the presence of an alkaline catalyst, typically sodium hydroxide.
During this glycidylation reaction, the phenolic hydroxyl groups are converted into glycidyl ether (epoxy) groups.
Careful control of temperature, molar ratios, and reaction time ensures the desired epoxy equivalent weight (EEW) and functionality.

After the reaction, washing and purification steps remove salts, excess epichlorohydrin, and residual by-products.
Vacuum stripping may be applied to reduce volatile components and improve product purity.

The final resin is filtered, quality-tested for viscosity, epoxy value, color, and residual chlorine content, and then packaged under moisture-controlled conditions to maintain stability.
This manufacturing process ensures a consistent multifunctional epoxy novolac resin with high crosslink potential and reliable performance in demanding industrial applications.

Stability and Reactivity of ARALDITE EPN 1180:

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, anhydrides, and phenalkamines 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 1180:

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 1180:

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 to do.
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 1180:

Suitable extinguishing media:
Foam.
Dry chemical powder.
Carbon dioxide (CO₂).
Water spray.

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

Protective equipment:
Use self-contained breathing apparatus.
Wear full protective clothing.

Accidental Release Measures of ARALDITE EPN 1180:

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

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

Methods for cleaning up:
Contain the 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 1180:

Engineering controls:
Use local exhaust ventilation, especially during heating, mixing, or spraying operations.

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

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

Eye protection:
Wear safety goggles or face shield.

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

Identifiers of ARALDITE EPN 1180:
CAS number: Proprietary mixture
EC number: Not available
Molecular structure: Glycidyl ether of phenolic novolac
Appearance: Amber to brown viscous resin
Physical state: High-viscosity liquid or semi-solid

Blend: No
CAS Number: 28064-14-4
Chemical Family: Glycidyl Ethers
Chemical Name: Phenol polymer with formaldehyde glycidyl ether
Function: Resins, Binders & Matrix Materials,Binder & Resin
Single Ingredient: Yes

Properties of ARALDITE EPN 1180:
Functionality: 3.6
Density: 1.22: g/cm³ at 25°C
Flash Point: min. 200.0°C: 
Viscosity: 20000.0-50000.0: mPa.s at 52°C
Viscosity: 5000.0: mPa.s at 65°C