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ARADUR 835 is a solid, isolated aliphatic polyamine adduct.
ARADUR 835 functions as a highly reactive crosslinking agent, curing agent, and hardener specifically designed for epoxy resin formulations.
The product provides rapid curing, excellent chemical resistance, strong adhesion, and high mechanical strength, making ARADUR 835 suitable for industrial coatings, adhesives, composite materials, electrical encapsulation, and construction applications.
ARADUR 835 is commonly used where fast cure speed, durable performance, and reliable epoxy network formation are required.
CAS Number: 36704-31-1
Molecular Formula: C₂₀H₂₉ClN₂O₃
Molecular Weight: 380.91 g/mol
MOL File:36704-31-1.mol
Product Functions: Accelerator, Crosslinking Agent, Hardener
Chemical Family: Epoxy & Epoxy Derivatives, Polyamines
Product End Uses: Decorative Coating, Pipe Coating, Primers, Reactive Coating, Rebar Coatings, Top Coat
Product Features: Excellent Adhesion, Excellent Cathodic Disbondment Performance, Good Mechanical Properties, High Reactivity, No Shrinkage, Smooth Surface Finish
Synonyms: Bisphenol A-epichlorohydrin-ethylenediamine copolymer,4,4'-(1-Methylethylidene)bis(phenol), polymer with (chloromethyl)oxirane and 1,2-ethanediamine,Phenol, 4,4-(1-methylethylidene)bis-, polymer with (chloromethyl)oxirane and 1,2-ethanediamine
ARADUR 835 is a solid aliphatic polyamine adduct developed as a highly reactive curing agent (hardener) and crosslinking agent for epoxy powder coating systems.
ARADUR 835 is primarily designed for fast-curing and low-temperature curing applications, making ARADUR 835 particularly suitable for powder coatings on heat-sensitive substrates such as wood, MDF, and certain plastics.
In addition to functioning as a primary hardener, ARADUR 835 can also be used as an accelerator in combination with dicyandiamide (DICY) or phenolic hardeners to increase curing speed and improve production efficiency.
ARADUR 835 is widely used in epoxy powder coatings, reactive coatings, and solvent-borne coating systems.
ARADUR 835 provides excellent mechanical strength, high chemical resistance, and outstanding corrosion protection, including superior salt spray resistance and cathodic disbonding performance.
These characteristics make ARADUR 835 particularly suitable for demanding industrial applications such as pipeline coatings, reinforcing steel (rebar) coatings, and other protective coating systems exposed to aggressive environments.
One of the major advantages of ARADUR 835 is its high reactivity, which enables shorter curing cycles and lower curing temperatures compared with conventional epoxy curing agents.
This allows manufacturers to reduce energy consumption while maintaining excellent coating performance.
The cured coatings exhibit good adhesion, high hardness, excellent flexibility, and durable impact resistance, making them suitable for both decorative and functional applications.
ARADUR 835 is commonly formulated with bisphenol-A epoxy resins or phenol-modified bisphenol-A epoxy resins, such as the Araldite GT series.
During production, the resin, hardener, pigments, and fillers are melt-mixed in an extruder before being processed into powder coatings.
The resulting powder can be applied by conventional electrostatic spraying or thermo-press processing depending on the application requirements.
Aradur 835 is a solid aliphatic polyamine adduct used as a hardener for fast curing or low-temperature curable powder surface technologies (wood).
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Aliphatic polyamine adduct.
ARADUR 835 acts as a curing agent. Exhibits excellent mechanical properties, good salt spray and cathodic disbonding performance.
This is the thermo-press processed powder system and is most suitable as decorative coating on temperature sensitive substrates like wood, MDF-boards or plastic formulated as topcoat or as primer with smooth surfaces.
Properties
Boiling point: 400.8°C at 760 mmHg (Cal.)
Flash point: 192.4°C (Cal.)
InChI: 1S/C15H16O2.C3H5ClO.C2H8N2/c1-15(2,11-3-7-13(16)8-4-11)12-5-9-14(17)10-6-12;4-1-3-2-5-3;3-1-2-4/h3-10,16-17H,1-2H3;3H,1-2H2;1-4H2
InChIKey: KLYIVRRCEZZZAN-UHFFFAOYSA-N
Key Features & Benefits
High Reactivity: Enables fast-curing performance and low-temperature curing capabilities.
Flexibility: Imparts high impact elasticity and excellent flexibilizing properties to the cured coating.
Chemical & Corrosion Resistance: Offers strong chemical resistance, excellent salt spray protection, and superb cathodic disbonding performance.
Blush-Free Surface: Yields completely blush-free finishes with smooth surface properties.
Food Contact Safety: Formulated to be FDA compliant for contact with foodstuffs.
Key Features of ARADUR 835
Solid aliphatic polyamine adduct curing agent.
Fast-curing and low-temperature curing capability.
Can be used as both a curing agent and a curing accelerator.
Excellent mechanical properties and chemical resistance.
Outstanding salt spray and cathodic disbonding performance.
Suitable for epoxy powder coatings on metal, wood, MDF, and heat-sensitive substrates.
Compatible with DICY and phenolic hardeners in highly reactive powder coating formulations.
Provides smooth surface appearance and excellent coating durability.
Typical Applications
Powder Coatings: Widely utilized as a co-hardener in combination with DICY (dicyandiamide) or phenolic hardeners to formulate highly reactive powder surface technologies.
ARADUR 835 is standardly used for coating industrial pipes, rebars, or cast motor blocks.
Temperature-Sensitive Substrates: Ideal for thermo-press processed decorative coatings on substrates such as wood, MDF boards, and plastics.
Typical Applications
Epoxy powder coatings
Industrial protective coatings
Pipeline coatings
Reinforcing steel (rebar) coatings
Decorative powder coatings
Wood and MDF powder coatings
Thermo-press powder coating systems
Reactive coating formulations
Chemical Properties & Compatibility
Physical Form: Light yellow flakes.
Resin Compatibility: Best paired with solid Bisphenol-A or phenol-modified Bisphenol-A epoxy resins, such as Araldite® GT 7072, GT 7004, and GT 7220.
Amine Value: 3.2 - 3.7 Eq/kg.
Melting Point: 90 - 98°C.
