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Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine is easy to combine together with polyurea, two-component polyurethane and epoxy resins.
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine is a high-performance aromatic diamine curing agent used primarily for the crosslinking and hardening of polyurethane and polyurea elastomer systems.
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine is composed mainly of substituted benzenediamines, including diethyl-methyl-benzene-diamine isomers, formulated to deliver a controlled reactivity profile suitable for industrial processing.
CAS Number: 68479-98-1
Molecular Formula: C11H18N2
Molecular Weight: 178.28
EINECS Number: 270-877-4
Synonyms: benzenediamine, ar,ar-diethyl-ar-methyl-;diethylmethylbenzenediamine;3-(pentan-3-yl)benzene-1,2-diamine;benzenediamine, ar,ar-diethyl-ar-methyl- diethylmethylbenzenediamine 3-(pentan-3-yl)benzene-1,2-diamine 68479-98-1, 3,5-Diethyltoluene-2,6-diamine ~20%];Diethyltoluenediamine [3,5-Diethyltoluene-2,4-diamine ~80%;ETHACURE 100-LC;POLYLINK DETDA;Benzenediamine, ar,ar-diethyl-ar- ethyl-;Diethyltoluylendiamin;ar,ar-diethyl-ar-methyl-benzenediamin;ar,ar-diethyl-ar-methylbenzenediamine
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine is a high-quality diethyl toluene diamine (DETDA).
Acts as a chain extender and curing agent/hardener. Provides beneficial thermo-mechanical, chemical and abrasion resistance at a low level of toxicity.
Offers improved use temperatures, decreased moisture absorption and improved impact resistance.
This specialized formulation allows Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine to react rapidly with isocyanates, producing strong, thermoset elastomer networks with exceptional mechanical strength.
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine is designed to offer lower trace impurities and lower color development compared to standard DETDA grades, resulting in cleaner cured polymers and improved stability.
Its “LT” designation indicates low tint or low temperature stabilization, depending on manufacturer context, emphasizing better color control and improved processing at moderate temperatures.
These properties make the curing agent ideal for applications requiring consistent optical appearance and controlled reaction kinetics.
The molecule functions as a chain extender and curative in polyurethane casting, spray elastomers, reaction injection molding (RIM), and hot-cast elastomer systems.
Its aromatic diamine structure enables rapid gel times, high hardness, and excellent dynamic load resistance in the cured polymer.
This fast-reactive behavior is important for industrial environments where cycle time and durability are both critical.
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine provides cured materials with high tensile strength, abrasion resistance, tear resistance, and thermal stability, making it suitable for demanding engineering applications.
Its rigid aromatic backbone improves stiffness and heat resistance while maintaining elasticity required for dynamic stress conditions.
These combined mechanical properties make DETDA one of the most commonly used curatives in premium elastomer formulations.
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine is widely used in polyurea spray coatings, mining screens, industrial rollers, wheels, pipelines, protective coatings, and elastomeric machine components.
Its ability to create highly crosslinked, chemically resistant matrices supports performance in harsh mechanical and chemical environments.
This versatility has made it a standard curing agent in industries requiring rugged, long-life polyurethane and polyurea systems.
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine is a high-purity aromatic diamine curative designed specifically for polyurethane and polyurea elastomer systems requiring rapid reaction, high mechanical strength, and exceptional long-term durability.
It is primarily composed of diethyl-methyl-benzene-diamine isomers carefully purified to ensure controlled reaction kinetics, minimized color formation, and stable molecular behavior during isocyanate curing.
This structural precision provides consistent polymer crosslinking and superior performance compared to conventional diamine curing agents.
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine belongs to the family of aromatic chain extenders, meaning it bridges isocyanate-terminated prepolymers to form long, rigid polyurea or polyurethane chains.
Its aromatic core accelerates gelation while simultaneously reinforcing stiffness, heat resistance, and dimensional stability in the cured elastomer.
This rapid chain extension produces dense polymer networks capable of absorbing extreme mechanical loads without permanent deformation.
The “LT” label signifies a low-tint, low-trace, low-temperature-optimized formulation engineered to minimize initial yellowing and improve processing behavior across various temperature ranges.
Its low-color characteristic is critical for elastomers requiring visual clarity, consistent hue, or reduced optical defects in final products.
This enhancement makes Primacure Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine ideal for applications where material appearance and batch-to-batch consistency must be tightly controlled.
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine enhances resistance to chemicals, fuels, oils, lubricants, solvents, and corrosive industrial liquids, making it ideal for harsh operational environments.
Cured polymers maintain structural integrity even when exposed to aggressive fluids or continuous chemical splash scenarios.
This makes it suitable for seals, gaskets, pump components, and chemical-handling equipment.
Its excellent compatibility with isocyanate-terminated prepolymers ensures predictable viscosity development, useful pot life windows, and uniform hardness development during curing.
This compatibility prevents phase separation, surface defects, or uneven crosslinking in the final elastomer.
Such stability is essential for manufacturers requiring precise control over curing speed and performance.
Boiling point: 310°C
Density: 1.022
vapor pressure: 0.001Pa at 25℃
Flash point: >140°C
pka: 4.6[at 20 ℃]
Water Solubility: 23g/L at 30℃
InChI: InChI=1S/C11H18N2/c1-4-8-6-10(12)9(5-2)11(13)7(8)3/h6H,4-5,12-13H2,1-3H3
InChIKey: GCIGOEOZGOYSKS-UHFFFAOYSA-N
SMILES: C1(C)=C(CC)C=C(N)C(CC)=C1N
LogP: 1.38 at 25℃
Chemically, the molecule contains highly reactive aromatic amine functional groups that react rapidly with isocyanates, forming urea and urethane linkages that give the cured material exceptional strength.
The presence of multiple alkyl substituents—such as diethyl and methyl groups—modifies reactivity, ensuring faster yet more controllable crosslinking.
This optimized substitution pattern gives the material a balanced reactivity profile suitable for both high-speed spray systems and precision casting processes.
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine supports hot-cast elastomer production, where well-defined gel times and rapid hardening are essential for producing large, high-strength components.
The controlled reaction helps eliminate defects such as incomplete crosslinking, voids, brittleness zones, or inconsistent hardness across thick sections.
This ensures the final elastomer performs reliably under intense mechanical stresses and heavy repetition cycles.
The curing agent is also widely used in polyurea spray systems, where instant reactivity is required for fast-curing protective coatings applied to industrial equipment, pipelines, truck beds, containment structures, and concrete surfaces.
Its ability to form tough, chemically resistant films within seconds allows large surfaces to be coated continuously without sagging or curing delays.
This makes it indispensable in high-productivity coating operations where downtime must be minimized.
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine imparts outstanding abrasion resistance, tear resistance, rebound elasticity, and dynamic fatigue resistance, enabling elastomers to survive harsh mechanical environments.
These characteristics make the material ideal for mining screens, impact pads, rollers, wheels, industrial belts, and sealing components exposed to repetitive forces.
Its superior toughness dramatically extends the operational lifespan of equipment used in mining, construction, and heavy manufacturing.
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine is a high-purity aromatic diamine curative specifically engineered for polyurethane and polyurea elastomer systems that require strong, highly crosslinked polymer networks.
It consists primarily of substituted diethyl-methyl-benzene-diamine isomers that react rapidly with isocyanates, forming durable thermoset structures with exceptional mechanical resilience.
This controlled composition ensures predictable reactivity, consistent processing performance, and improved physical properties in cured elastomers.
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine is formulated to have lower color generation and reduced impurity content compared to standard DETDA materials, resulting in cleaner, lighter-colored cured parts.
Its “LT” designation typically refers to Low Tint or Low Temperature processing stability, highlighting its advantages in applications where appearance, color retention, and processing control are critical.
This makes it highly suitable for cast elastomers, spray systems, and molded components where aesthetic quality and reproducibility matter.
The compound functions as a chain extender and curative that links isocyanate-terminated prepolymers into long, crosslinked polyurethane or polyurea chains.
Its aromatic diamine structure accelerates gelation, shortens cure times, and increases the hardness of the final polymer matrix.
This rapid reactivity is especially advantageous in high-throughput industrial processes where cycle speed and dimensional stability are essential.
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine enables the formation of elastomers with high tensile strength, elevated tear resistance, superior abrasion performance, and exceptional dynamic fatigue resistance.
The rigid aromatic core improves thermal stability and compressive strength while maintaining the elasticity necessary for impact and vibration loads.
This balance of stiffness and resilience is a hallmark of DETDA-based elastomers used in heavy-duty industrial environments.
The material is compatible with both hot-cast and cold-cure systems, allowing formulators to tailor reactivity, pot life, and cure profile according to the processing method.
Its highly predictable reaction with isocyanates ensures uniform gelation, minimizing defects such as bubbles, uneven hardness, or incomplete cure.
These characteristics are vital in applications requiring structural consistency across large parts or repeated production cycles.
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine is widely used in polyurea spray coatings, where its rapid reaction rate supports instant curing on surfaces requiring fast build-up of protective layers.
Its contribution to chemical resistance and hardness makes it ideal for coating pipelines, tanks, structural steel, industrial floors, and corrosion-prone components.
These cured coatings withstand abrasion, impact, solvents, fuels, moisture, and aggressive environmental conditions.
The curing agent is also a key component in mining equipment elastomers, such as screening panels, wear liners, conveyor parts, and high-impact mechanical components.
The cured polyurethanes exhibit exceptional tear resistance and rebound resilience, essential for the harsh abrasiveness found in mining operations.
These properties extend equipment life and reduce maintenance frequency under continuous mechanical stress.
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine is utilized in the production of industrial wheels, rollers, and cast polyurethane parts, where precise hardness and load-bearing properties are required.
The aromatic diamine curative ensures a uniform, rigid polymer backbone capable of resisting deformation under heavy weight and dynamic loads.
This makes it suitable for forklift wheels, printing rollers, conveyor wheels, and high-pressure rollers used in manufacturing.
In reaction injection molding (RIM) systems, Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine provides rapid demolding, high dimensional stability, and consistent mechanical strength.
Its fast gelation helps eliminate part shrinkage, warping, or sagging during curing.
This supports large-scale molding operations where precision and speed are crucial.
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine is also used in seals, gaskets, bushings, vibration isolators, and mechanical shock-absorbing parts due to its robust elastomeric behavior.
The cured materials retain elasticity and structural integrity under repeated compression cycles and temperature fluctuations.
Such performance is essential in automotive, aerospace, and heavy machinery applications.
The material enhances the performance of protective linings, impact-resistant panels, and abrasion-resistant structural components made from polyurethane.
Its cured networks resist tearing, chipping, and mechanical degradation even under extreme stress.
This durability makes it ideal for construction, transportation, and industrial wear surfaces.
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine provides excellent chemical resistance, enabling elastomers to withstand fuels, oils, lubricants, acids, bases, and various industrial chemicals.
This chemical durability makes it suitable for oil-field tools, chemical-handling equipment, and mechanical parts exposed to harsh fluids.
Such resistance ensures long service life and improved safety margins.
Because of its low moisture sensitivity, Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine offers more stable processing compared to other highly reactive diamine curatives.
Its reduced humidity sensitivity prevents foaming, inconsistent cure, and surface defects in the final elastomer.
This advantage improves process control in humid climates and large-scale production settings.
The curing agent supports the production of high-temperature elastomers capable of maintaining hardness and structural strength under sustained heat exposure.
Its aromatic structure enhances polymer rigidity, reducing thermal softening and deformation.
This signature heat resistance makes it a reliable curative for components exposed to continuous mechanical heating or friction.
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine is also used in electrical and industrial insulation elastomers, where heat resistance, dielectric stability, and dimensional robustness are required.
The cured material resists thermal breakdown and mechanical fatigue, protecting electrical components from heat and physical stress.
This makes it suitable for cable jacketing, insulating layers, and high-stress polymeric housings.
Uses:
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine is light yellow to amber transparent liquid.
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine is an excellent and low cost chain extender for elastomeric polyurethanes (PU) and also a curing agent for epoxides (EP).
In addition it may be used as an intermediate for organic syntheses.
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine also can be used as epoxy, alkyd resin curing agent, rubber and oil antioxygen, dye and pesticide intermediate, and is a kind of new promising chemical product.
Moreover, Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine also can be used as the elastomer, chain extender for reaction injection moulding PU, PU coating, epoxy resin, and alkyd resin curing agent.
Lubricant and pesticide, dye intermediate, plastic, rubber, oil antioxygen, and chemical synthetic intermediate.
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine is used in preparation of hydroxyl and amino-modified anti-explosion composite materials.
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine is an excellent and low cost chain extender for elastomeric polyurethanes (PU) and also a curing agent for epoxides (EP).
In addition it may be used as an intermediate for organic syntheses.
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine is widely used as a primary curative for hot-cast polyurethane elastomers, where its rapid reaction with isocyanate prepolymers creates exceptionally strong and highly crosslinked polymer networks.
This fast-curing behavior enables manufacturers to produce large elastomeric components with uniform hardness and minimal defects.
These properties make it ideal for industrial applications requiring durability under heavy mechanical stress.
The material is extensively used in polyurea spray systems, where instant gelation is needed to form protective coatings directly on surfaces without sagging or running.
Its rapid reactivity allows continuous, seamless coating application over large areas such as tanks, containment pits, truck beds, pipelines, roofs, and marine structures.
This rapid-set behavior provides superior chemical, abrasion, and corrosion resistance in highly demanding environments.
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine is a key curative in reaction injection molding (RIM) systems, where fast cycle times, high dimensional stability, and precise shape retention are required.
Its controlled reactivity ensures complete mold filling before gelation begins, reducing shrinkage, voids, or flow inconsistencies.
These characteristics support the production of automotive parts, industrial housings, equipment covers, and technical molded components.
The curing agent is widely used in mining, quarrying, and mineral-processing elastomers, where high tear strength and abrasion resistance are essential.
Polyurethanes cured with DETDA 80 LT withstand repeated impact, vibration, and abrasive material flow found in mining screens, impact panels, chute liners, and conveyor equipment.
This durability significantly extends service life in harsh industrial operations.
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine is used to produce industrial wheels, rollers, and cast components that must carry heavy loads while resisting deformation.
Its cured elastomers maintain hardness and structural integrity under continuous compression, making it suitable for forklift wheels, printing rollers, and material-handling equipment.
The resulting materials show excellent rebound elasticity, preventing permanent flattening under long-term use.
The material plays an important role in elastomeric seals, gaskets, bushings, and shock-absorbing mounts, where it provides low compression set and high mechanical resilience.
Its aromatic backbone enables the polymer to maintain shape even after repeated mechanical cycling and long-term stress.
This makes it suitable for automotive, aerospace, marine, and industrial vibration-control components.
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine is employed in pipeline, tank, and industrial floor coatings, where its rapid curing and chemical resistance form tough, permanent protective barriers.
Polyurea coatings cured with DETDA 80 LT resist solvents, oils, fuels, acids, salts, and abrasive mechanical wear.
This ensures extended service life in chemical plants, food-processing facilities, and environments with aggressive operating conditions.
It is used in military and defense coatings, particularly where fast-curing blast-resistant layers or abrasion-resistant protective skins are required.
Its reactivity profile enables rapid deployment in field applications and large-scale protective installations.
These coatings improve structural durability under harsh battlefield or environmental conditions.
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine is used in rollers and cylinders for textile manufacturing, steel plants, paper-production equipment, and printing machines.
Cured elastomers provide uniform hardness, thermal resistance, and mechanical grip needed for high-speed industrial processes.
This enhances productivity, roller lifespan, and print/feed accuracy.
The material is critical for high-performance composite systems, where elastomer layers require precise hardness and flexibility gradients.
Its predictable curing allows engineers to design multi-layer elastomer structures with differentiated functional zones.
This capability supports advanced engineered products used in mechanical coupling systems and high-load industrial assemblies.
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine is widely used in hydrocyclone cones, pump impellers, slurry handling components, and industrial fluid-contact parts due to its resistance to erosion and chemical corrosion.
Polyurethane cured with DETDA maintains toughness when exposed to abrasive slurries and high-velocity fluid flows.
This extends the operational life of fluid-handling systems in mining and wastewater industries.
It is applied in oil and gas industry elastomers, where resistance to hydrocarbons, high pressure, and chemical attack is required.
The cured material withstands extreme downhole conditions and maintains its mechanical integrity under fluctuating temperatures.
This makes it ideal for seals, packers, and drilling-support components.
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine is used in sports equipment, industrial pads, and protective surfaces, where high rebound and impact absorption are necessary.
Its elastomers withstand repeated bending, stretching, and impact without cracking or losing elasticity.
This helps create long-lasting components for high-stress athletic and industrial applications.
The material is also used in coating systems for concrete, steel structures, and infrastructure, where long-term weather resistance and waterproofing are essential.
Polyurea formulations containing DETDA offer excellent UV stability, crack-bridging ability, and resistance to chemical spills.
These properties support the long-term durability of bridges, tunnels, parking structures, and industrial floors.
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine is used in rollers in bottling and packaging plants, where mechanical precision, abrasion resistance, and solvent resistance are required.
Its elastomers maintain consistent hardness even after repeated contact with lubricants, cleaners, and process chemicals.
This ensures stable and reliable operation in automated packaging lines.
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine is vital in industrial cast elastomer parts where precise hardness control, long-term compression resistance, and robust chemical stability define the quality standard.
Its molecular architecture allows formulators to produce parts with exact performance targets, from very hard elastomers to flexible, impact-resistant materials.
This precision makes it a foundational curative in advanced polyurethane engineering.
Safety Profile:
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine can cause significant skin irritation because its aromatic diamine structure penetrates the upper epidermal layers and reacts with natural skin proteins.
Prolonged contact may lead to redness, burning, dryness, or chemical dermatitis, especially in individuals with sensitive skin or repeated exposure.
Proper protective gloves and avoidance of prolonged direct skin contact are strongly recommended during handling.
The material may produce strong eye irritation, as aromatic diamine molecules can bind to ocular proteins and disrupt the tear-film surface.
Exposure may cause immediate stinging, redness, tearing, swelling, or temporary vision disturbance.
Rapid flushing with clean water for an extended period is required to minimize potential eye damage.
Inhalation of vapors, aerosols, or processing fumes can cause respiratory irritation due to the reactivity of aromatic amine groups with mucous membranes.
Workers may experience coughing, throat soreness, nasal burning, or chest tightness when exposed in poorly ventilated conditions.
Adequate ventilation and respiratory protection are essential in spray, mixing, or heating operations.
Primacure DETDA 80 LT - Diethyl Methyl Benzene Diamine has a high sensitization potential, meaning repeated exposure may lead to allergic reactions such as rash, swelling, itching, or delayed hypersensitivity.
Once sensitized, individuals may show strong reactions even to very small subsequent exposures.
This makes consistent personal protective equipment crucial to prevent long-term sensitization.
The substance can be toxic if inhaled or absorbed through the skin, as aromatic diamines can enter systemic circulation and affect internal organs with prolonged or excessive contact.
Symptoms may include headache, dizziness, fatigue, or nausea in cases of elevated exposure.
Industrial handling must follow strict exposure-minimization procedures to prevent cumulative toxicity.
