ARADUR 450-1S

ARADUR 450-1S is a modified anhydride curing agent designed for improved processing and controlled reactivity in epoxy systems.
ARADUR 450-1S provides excellent thermal resistance and mechanical performance in cured materials.
ARADUR 450-1S is widely used in composites and electrical applications requiring stable and durable thermoset structures.

Synonyms: Epoxy Hardener 450-1S, Anhydride Curing Agent 450-1S, Modified Epoxy Anhydride Hardener, ARADUR Hardener 450-1S, Epoxy Crosslinking Agent 450-1S, Thermoset Hardener 450-1S, Epoxy Resin Curing Agent, Modified Anhydride Hardener, Epoxy Network Former, Industrial Epoxy Hardener, Electrical Grade Epoxy Hardener, Composite Curing Agent, Casting Resin Hardener, High-Temperature Epoxy Hardener, Thermal Resistant Hardener

ARADUR 450-1S is a polyamidoamine-based chemical compatible with concrete, metal, mortar, and steel surfaces.
ARADUR 450-1S enhances bonding and curing properties in various industrial applications involving these materials.

ARADUR 450-1S is a polyamide amine-based fast curing agent.
ARADUR 450-1S is designed specifically for the formulation of two-component epoxy primers for damp or wet concrete.

ARADUR 450-1S is suitable for metal substrates.
ARADUR 450-1S complies with the REACH regulation.

ARADUR 450-1S is a modified anhydride-based curing agent developed for epoxy resin systems requiring controlled reactivity and improved processing behavior.
ARADUR 450-1S is typically used with epoxy resins such as Araldite systems and in combination with accelerators to achieve efficient curing.
ARADUR 450-1S is suitable for applications where enhanced flow, processing stability, and high-performance thermoset properties are required.

Applications of ARADUR 450-1S:
With liquid epoxy resins such as Araldite GY 250, GY 764, GY 783 or GY 793, for primers / adhesion promoters to problematic concrete substrates and also for solvent-free or low-solvent coatings (high-solids) for heavy-duty corrosion protection.
Due to its extreme tolerance to wet conditions, ARADUR 450-1S can be applied to all types of wet-damp and difficult to substrates.

ARADUR 450-1S is used as a hardener in epoxy formulations for composites, casting, electrical encapsulation, laminates, and industrial components.
ARADUR 450-1S enables the formation of highly crosslinked networks with excellent thermal resistance, dimensional stability, and dielectric performance.

Properties of ARADUR 450-1S:

ARADUR 450-1S can be regarded as the accelerated (Free from Bisphenol A) version of ARADUR 450 and will give the following properties:
Lower viscosity, better processability and cure at 10°C in mortars, despite high mechanical properties, a certain degree of flexibility that does not decrease with time an excellent adhesion even onto marginally pretreated and moist concrete and steel smooth, glossy, tack - free surfaces good corrosion protection.
Although ARADUR 450-1S provides slightly longer potlife than ARADUR 450 S while curing at 10°C is faster.

Stability and Reactivity of ARADUR 450-1S:

Chemical stability:
Stable under recommended storage conditions.

Reactivity:
Reacts with epoxy resins to form crosslinked thermoset networks.
Curing requires accelerator.

Conditions to avoid:
Moisture.
Excessive heat.
Contamination.

Incompatible materials:
Strong bases.
Amines (uncontrolled reaction).
Oxidizing agents.

Hazardous decomposition products:
Carbon oxides (CO.
CO₂).
Organic acid vapors under high temperature.

Handling and Storage of ARADUR 450-1S:

Handling:
Avoid contact with skin and eyes.
Use appropriate PPE and ventilation.

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

Temperature:
Recommended 15–30°C.

Precautions:
Protect from moisture to prevent hydrolysis.

First Aid Measures of ARADUR 450-1S:

Inhalation:
Move to fresh air.
Seek medical attention if symptoms occur.

Skin:
Wash thoroughly with soap and water.

Eyes:
Rinse with water for at least 15 minutes.
Seek medical attention.

Ingestion:
Seek immediate medical assistance.
Do not induce vomiting.

Firefighting Measures of ARADUR 450-1S:

Extinguishing media:
Foam.
Dry chemical.
CO₂.
Water spray.

Hazards:
Toxic fumes may be released during combustion.

Protection:
Use self-contained breathing apparatus (SCBA).
Protective clothing.

Accidental Release Measures of ARADUR 450-1S:

Containment:
Use inert absorbent materials to control spill.

Cleanup:
Collect in appropriate containers for disposal.

Environmental precautions:
Prevent entry into drains.
Waterways.

Exposure Controls / Personal Protective of ARADUR 450-1S:

Ventilation:
Local exhaust ventilation recommended.

Respiratory:
Use respirator if needed.

Gloves:
Chemical-resistant gloves (nitrile.
Neoprene).

Eye protection:
Safety goggles.
Face shield.

Clothing:
Protective clothing to prevent skin contact.

Identifiers of ARADUR 450-1S:
CAS Number: Not publicly specified
EC Number: Not publicly specified
Molecular Formula: Not applicable
Molecular Weight: Not applicable
IUPAC Name: Not defined

Properties of ARADUR 450-1S:
Physical State: Liquid
Appearance: Clear to light amber liquid
Odor: Mild characteristic odor
Density: ~1.10 – 1.18 g/cm³ (at 25°C)
Viscosity: Medium viscosity
Flash Point: >150°C

Density: 1.03 g/cm³
Flash Point: 86.0 °C
Flash Point: 86.0 °C
Gel Time: 54.0 m
Viscosity: 450.0-1300.0 mPa.s
Viscosity: 450.0-1300.0 mPa.s