Why It Matters
Selecting the right amine curative to hit target pot life, cure speed, Tg, and chemical resistance in epoxy adhesives and composites
Solution Approach
Selecting the right amine curative to hit target pot life, cure speed, Tg, and chemical resistance in epoxy adhesives and composites RawSource supplies the base chemicals that go into these programs. We can help with product selection, grade matching, and sourcing from multiple origins for supply security.
Typical Treatment Workflow
1
System Assessment
Characterize operating conditions—fluid composition, temperature, pressure, flow rates—and benchmark current treatment performance.
2
Chemistry Selection
Match base chemicals to your operating envelope. Factor in compatibility with existing programs, regulatory constraints, and downstream impacts.
3
Dosage & Delivery
Determine optimal treat rates through jar testing or field trials. Configure packaging (drums, totes, ISO tanks) to match consumption and storage logistics.
4
Monitoring & Adjustment
Track KPIs—coupon rates, residuals, separator performance, water quality. Adjust chemistry and dosage as conditions change.
Recommended Chemistries (6)
Diethylenetriamine (DETA)
CAS 111-40-0
Amines & Amides
Fast aliphatic amine
2079 (DIETHYLENETRIAMINE) · Class Fast aliphatic amine: its primary/secondary N-H groups ring-open epoxides for rapid ambient cure, but short pot life and moderate Tg
Melting Point: -39 °C Boiling Point: 207 °C at 760 mmHg Density: 0.954 at 20 °C
Full Details
Triethylenetetramine (TETA)
CAS 112-24-3
Amines & Amides
General purpose amine
2259 (TRIETHYLENETETRAMINE) · Class General-purpose aliphatic polyamine with higher amine functionality for denser crosslink networks
Melting Point: 12 °C Boiling Point: 266–267 °C at 760 mmHg Density: 0.982 at 20 °C
Full Details
Tetraethylenepentamine (TEPA)
CAS 112-57-2
Amines & Amides
Crosslinking / Curing
2320 (TETRAETHYLENEPENTAMINE) · Class Higher-functionality aliphatic amine giving increased crosslink density and chemical resistance
Melting Point: -40 °C Boiling Point: 340 °C at 760 mmHg Density: 0.998 at 20 °C
Full Details
4,4'-Diaminodicyclohexylmethane (PACM)
CAS 1761-71-3
Amines & Amides
Premium clarity curative
3259 (4,4'-DIAMINODICYCLOHEXYL METHANE) · Class Cycloaliphatic amine delivering higher Tg, UV/clarity and chemical resistance with longer pot life than aliphatic amines
Melting Point: 60–62 °C (cis-cis) 64–65 °C (trans-trans) Boiling Point: 330–331 °C at 3 mmHg Density: 0.9608 at 25 °C
Full Details
1,3-Bis(aminomethyl)cyclohexane (BAC)
CAS 2579-20-6
Specialty Additives
Crosslinking / Curing
Cycloaliphatic curative balancing fast cure with good Tg and color stability
Physical Description: Liquid
Full Details
Polyetheramine D-230
Flexible polyether-backbone diamine that lengthens pot life and toughens/flexibilizes the cured network (low Tg, high elongation); blank CAS is genuine in the spine
Full Details