ARADUR 145

Aradur 145 is used Industrial floor coatings, Protective metal coatings, Chemical-resistant coatings, Maintenance coatings, Machinery coatings, Automotive and transportation coatings, Adhesives.
Aradur 145 is used in structural epoxy adhesives because it improves: Bond strength, Mechanical durability, Resistance to vibration, Resistance to temperature changes.
Aradur 145 is used Construction adhesives, Composite bonding, Metal bonding, Engineering adhesives, Composite Materials.

CAS Number: Mixture – no single CAS number assigned
EC Number (EINECS/ELINCS): Mixture – no single EC number assigned
Molecular Formula: Not applicable (commercial mixture)
Molecular Weight: Not applicable (commercial mixture)

SYNONYMS:
ARADUR® 145, ARADUR 145 Hardener, Epoxy Curing Agent, Epoxy Resin Hardener, Amine Curing Agent, Modified Amine Hardener, Reactive Amine Hardener, Polyamine Epoxy Hardener

Aradur 145 is a medium-viscosity polyamidoimidazoline.
Aradur 145 is a polyaminoimidazoline-based curing agent.
Aradur 145 is a BzOH-free grade.

Aradur 145 shows compatibility with epoxy resin.
Aradur 145 also acts as hardener for low to medium glass transition temperature two-components system.
Aradur 145 is applicable for adhesives.

Aradur 145 is a commercial curing agent (hardener) used primarily in epoxy resin systems.
Aradur 145 is part of the Aradur product family developed for high-performance epoxy applications.
Aradur hardeners are commonly used together with epoxy resins to produce thermosetting materials with improved mechanical strength, chemical resistance, durability, adhesion, and thermal performance.

Aradur 145 is generally classified as an amine-based epoxy curing agent.
Aradur 145 reacts with epoxy groups through a cross-linking reaction, forming a three-dimensional polymer network.
Aradur 145 exhibits enhanced hardness, dimensional stability, and resistance to environmental stresses.

Because Aradur 145 is a commercial formulation, its exact chemical composition may be proprietary and may vary depending on supplier documentation.
Therefore, a single CAS number, EC number, molecular formula, and molecular weight may not be officially assigned to Aradur 145 as a whole.
Aradur 145 is a high-performance amine-based epoxy curing agent specifically developed for use with epoxy resin systems in demanding industrial applications.

Aradur 145 functions as a reactive hardener that chemically cross-links epoxy resins, transforming them from liquid formulations into durable, thermoset materials with excellent mechanical and chemical properties.
Aradur 145 is designed to provide reliable curing performance while delivering a balanced combination of strength, toughness, adhesion, and long-term durability.
Aradur 145 is a high-performance epoxy curing agent designed for use with epoxy resins in industrial applications.

Aradur 145's main role is to convert liquid epoxy systems into durable thermoset materials through chemical cross-linking.
Aradur 145 provides excellent adhesion, mechanical strength, chemical resistance, and long-term durability.
Aradur 145 is especially suitable for coatings, adhesives, composites, construction materials, and protective applications.
Due to its formulation as a commercial mixture, Aradur 145 does not have a unique CAS number, EC number, molecular formula, or molecular weight.

 
USES and APPLICATIONS of ARADUR 145:
Applications of Aradur 145 include: Industrial floor coatings, Protective metal coatings, Chemical-resistant coatings, Maintenance coatings, Machinery coatings, Automotive and transportation coatings, Adhesives.
Aradur 145 is used in structural epoxy adhesives because it improves: Bond strength, Mechanical durability, Resistance to vibration, Resistance to temperature changes.

Applications of Aradur 145 include: Construction adhesives, Composite bonding, Metal bonding, Engineering adhesives, Composite Materials.
Aradur 145 is used in epoxy composite systems for manufacturing strong lightweight materials.
Applications of Aradur 145: Carbon fiber composites, Glass fiber composites, Reinforced plastics, Industrial composite parts.
Construction Applications of Aradur 145: Epoxy systems containing Aradur 145 are used in construction materials such as: Epoxy flooring systems, Repair mortars, Concrete coatings, Structural reinforcement systems.

The cured resin improves resistance against: Moisture, Chemicals, Mechanical stress, Wear.
Electrical and Electronic Applications of Aradur 145: Epoxy curing systems may be used for: Encapsulation materials, Electrical insulation, Protective coatings for electronic components.
Aradur 145 improves bonding to many substrates including: Metals, Concrete, Ceramics, Composite materials, Chemical Resistance.

Aradur 145 is widely used as a curing agent for epoxy resin formulations in numerous industrial sectors.
Aradur 145 plays an important role in the production of protective coatings, structural adhesives, composite materials, electrical encapsulation compounds, and high-performance flooring systems.
In industrial coatings, Aradur 145 helps produce chemically resistant and abrasion-resistant finishes for steel structures, pipelines, storage tanks, machinery, marine equipment, and concrete surfaces.

In adhesive formulations, Aradur 145 contributes to the development of strong structural bonds between metals, concrete, ceramics, wood, and composite materials, making it suitable for engineering, automotive, aerospace, and construction applications.
Aradur 145 is also extensively used in fiber-reinforced composite manufacturing, including glass fiber and carbon fiber composites, where it provides the cured laminate with excellent strength, dimensional stability, and environmental resistance.

In the electrical and electronics industry, Aradur 145 is employed in potting compounds, encapsulation systems, insulating materials, transformers, switchgear, printed circuit board assemblies, and electronic components that require reliable electrical insulation and protection against moisture and chemicals.
Additionally, Aradur 145 is used in civil engineering applications such as epoxy mortars, crack injection systems, concrete repair products, anchor adhesives, industrial flooring, and protective construction materials that require long-term durability and excellent adhesion.

Aradur 145 is commonly used in industries where epoxy systems must withstand harsh environmental conditions, mechanical loads, moisture, and exposure to chemicals.
Aradur 145's formulation is optimized to ensure consistent processing, good workability, and dependable curing behavior across a wide range of manufacturing and construction applications.

-Epoxy systems cured with Aradur 145 show resistance against: Oils, Fuels, Solvents, Industrial chemicals, Moisture, Durability.
The cured materials provide:
Long service life
Resistance to aging
Good environmental stability

-Epoxy Coatings uses of Aradur 145:
Aradur 145 is widely used in epoxy coating formulations for industrial protection.
Aradur 145 helps create coatings with high hardness, abrasion resistance, and chemical resistance.

BENEFITS of ARADUR 145:
*High strength-to-weight ratio
*Improved impact resistance
*Better environmental durability
*Good dielectric properties
*Moisture protection
*Mechanical protection

CHEMICAL AND FUNCTIONAL CHARACTERISTICS of ARADUR 145:
Aradur 145 functions as a curing accelerator and cross-linking component in epoxy formulations.
The amine groups present in the hardener react with epoxy groups, opening the epoxy ring and forming strong chemical bonds.

Aradur 145 provides:
*Efficient epoxy curing
*Good adhesion properties
*High mechanical strength
*Improved chemical resistance
*Enhanced durability
*Good surface hardness
*Resistance against environmental degradation
*Improved dimensional stability
*Controlled curing behavior

The cured epoxy system produced with Aradur 145 typically demonstrates excellent bonding strength and long-term stability.

BENEFITS of ARADUR 145:
Aradur 145 offers numerous performance benefits that make it suitable for demanding epoxy applications.
Aradur 145 provides excellent curing efficiency, allowing epoxy systems to develop high mechanical strength and excellent adhesion to a wide variety of substrates.
The cured materials exhibit outstanding resistance to abrasion, impact, chemicals, water, oils, fuels, and many industrial solvents, resulting in extended service life even under severe operating conditions.

Another important benefit is Aradur 145's ability to produce epoxy systems with low shrinkage during curing, helping maintain dimensional accuracy and minimizing internal stresses within the finished component.
Aradur 145 also contributes to improved toughness without significantly compromising hardness, enabling cured materials to withstand repeated mechanical loading and thermal cycling.

Aradur 145's balanced reactivity offers practical processing characteristics, including good mixing behavior, controlled curing rates, and sufficient working time for industrial manufacturing processes.
These advantages help manufacturers achieve consistent product quality while improving production efficiency.

CHARACTERISTICS of ARADUR 145:
Aradur 145 is characterized by its reactive amine chemistry, which enables efficient cross-linking with epoxy resins to form highly stable three-dimensional polymer networks.
The resulting cured materials demonstrate excellent mechanical integrity, strong adhesion, high compressive strength, and good resistance to fatigue and environmental aging.
Aradur 145 is formulated to provide stable curing performance under a variety of processing conditions while maintaining compatibility with many standard liquid epoxy resins.

One of its distinguishing characteristics is Aradur 145's ability to produce epoxy systems with an excellent balance of hardness and toughness, allowing finished products to resist cracking under mechanical stress while maintaining high surface durability.
Cured systems based on Aradur 145 typically exhibit excellent chemical resistance against acids, alkalis, oils, fuels, cleaning agents, and numerous industrial chemicals, making them suitable for protective coatings and corrosion-resistant applications.

Aradur 145 also contributes to good thermal stability, low permeability to moisture, and reliable long-term performance in demanding indoor and outdoor environments.
Its versatility makes Aradur 145 an effective curing agent for a broad range of industrial formulations where strength, durability, chemical resistance, and processing reliability are essential.

COMPONENTS of ARADUR 145:
Aradur 145 is a solvent-free polyaminoimidazoline epoxy curing agent (hardener) manufactured by Huntsman.
Aradur 145 is a proprietary polymeric formulation, not a single chemical substance. 
According to Huntsman's technical documentation, Aradur 145 is supplied as a 100% active curing agent, meaning it contains no intentionally added solvent.

Aradur 145 is described as a medium-viscosity polyaminoimidazoline curing agent for epoxy adhesives, mastics, and protective coating systems.
The formulation consists primarily of the following component:
Polyaminoimidazoline (polymeric epoxy curing agent) – approximately 100 wt.%

COMPONENT DETAILS of ARADUR 145:
Polyaminoimidazoline
Function: Active epoxy curing agent (hardener)
Approximate content: ≈100 wt.%
CAS Number: Proprietary mixture (no single CAS number assigned)
EC Number: Mixture (no single EC number assigned)
Molecular Formula: Not applicable (polymeric proprietary mixture)
Molecular Weight: Not applicable (polymeric mixture)
Purpose: 
Reacts with epoxy resins to form a highly crosslinked thermoset polymer, providing excellent adhesion, flexibility, toughness, impact resistance, chemical resistance, corrosion protection, and ambient-temperature curing performance. 
It is particularly suitable for mastics, reactive adhesives, and industrial protective coatings.

CHEMICAL ORIGIN of ARADUR 145:
The active curing agent is a polyaminoimidazoline polymer, generally produced by the reaction of:
Dimerized fatty acids (dimer fatty acids)
Polyamines, followed by imidazoline ring formation

This synthesis produces a polymer containing both primary/secondary amine groups and imidazoline rings, which provide the reactive sites necessary for curing epoxy resins. 
Typical Formulation (Approximate)
Polyaminoimidazoline: ~100%

BENEFITS of ARADUR 145:
Aradur 145 provides several performance advantages:
Excellent Mechanical Performance
The cured epoxy materials show:
High tensile strength
Good flexural strength
High hardness
Improved toughness
Strong Adhesion

PROCESSING ADVANTAGES of ARADUR 145:
The product offers:
Easy mixing
Good resin compatibility
Controlled curing characteristics
Suitable working time for industrial applications

PHYSICAL and CHEMICAL PROPERTIES of ARADUR 145:
Product Name: ARADUR® 145
Chemical Description: Modified amine epoxy curing agent
Chemical Family: Amine-based epoxy hardener
CAS Number: Mixture – no single CAS number assigned
EC Number: Mixture – no single EC number assigned
Molecular Formula: Not applicable (commercial mixture)
Molecular Weight: Not applicable (commercial mixture)
Appearance: Clear to slightly yellow liquid
Physical State: Liquid

Odor: Amine-like odor
Color: Colorless to pale yellow
Chemical Nature: Modified amine epoxy curing agent
Density: Approximately 0.95–1.05 g/cm³
Viscosity: Low to medium viscosity liquid
Solubility: Compatible with epoxy resins; limited water solubility depending on formulation
pH: Alkaline
Flash Point: Depends on formulation
Boiling Range: Not specifically available for the mixture

Vapor Pressure: Low vapor pressure
Thermal Stability: Stable under recommended storage conditions
Reactivity: Reacts with epoxy groups to form cross-linked polymer networks
Curing Mechanism: Amine-epoxy addition reaction
Water Sensitivity: May absorb atmospheric moisture due to amine functionality
Storage Stability: Stable when stored in sealed containers under recommended conditions
Flammability: Combustible liquid depending on formulation
Composition / Components
Modified Polyamine Resin: Proprietary mixture

Polyamine Derivatives: Proprietary mixture
Amine-Based Reactive Components: Proprietary mixture
Additives: Proprietary mixture
Product Name:ARADUR® 145
Chemical Description:Amine-based epoxy curing agent / epoxy hardener
Product Type:Epoxy resin curing agent
Chemical Family:Modified amine hardener
CAS Number:Mixture – no single CAS number assigned
EC Number (EINECS/ELINCS):Mixture – no single EC number assigned

Molecular Formula:Not applicable (commercial mixture)
Molecular Weight:Not applicable (commercial mixture)
Composition / Components
Modified Polyamine Resin: Proprietary mixture
Polyamine Derivatives: Proprietary mixture
Amine-Based Reactive Components: Proprietary mixture
Additives: Proprietary mixture

FIRST AID MEASURES of ARADUR 145:
-Description of first-aid measures
*General advice:
Show this material safety data sheet to the doctor in attendance.
*If inhaled:
After inhalation: 
Fresh air.
*In case of skin contact: 
Take off immediately all contaminated clothing. 
Rinse skin with
water/ shower.
*In case of eye contact:
After eye contact: 
Rinse out with plenty of water. 
Call in ophthalmologist. 
Remove contact lenses.
*If swallowed:
After swallowing: 
Immediately make victim drink water (two glasses at most). 
Consult a physician.
-Indication of any immediate medical attention and special treatment needed.
No data available

ACCIDENTAL RELEASE MEASURES of ARADUR 145:
-Environmental precautions:
Do not let product enter drains.
-Methods and materials for containment and cleaning up:
Cover drains. 
Collect, bind, and pump off spills. 
Observe possible material restrictions. 
Take up dry. 
Dispose of properly. 
Clean up affected area.

FIRE FIGHTING MEASURES of ARADUR 145:
-Extinguishing media:
*Suitable extinguishing media:
Carbon dioxide (CO2) 
Foam 
Dry powder
*Unsuitable extinguishing media:
For this substance/mixture no limitations of extinguishing agents are given.
-Further information:
Prevent fire extinguishing water from contaminating surface water or the ground water system.

EXPOSURE CONTROLS/PERSONAL PROTECTION of ARADUR 145:
-Control parameters:
--Ingredients with workplace control parameters:
-Exposure controls:
--Personal protective equipment:
*Eye/face protection:
Use equipment for eye protection. 
Safety glasses
*Body Protection:
protective clothing
*Respiratory protection:
Recommended Filter type: Filter A 
-Control of environmental exposure:
Do not let product enter drains.

HANDLING and STORAGE of ARADUR 145:
-Conditions for safe storage, including any incompatibilities:
*Storage conditions:
Tightly closed. 
Dry.

STABILITY and REACTIVITY of ARADUR 145:
-Chemical stability:
The product is chemically stable under standard ambient conditions (room temperature).
-Possibility of hazardous reactions:
No data available