Epoxy Curing Agent PACM (Cas 1761-71-3): Comprehensive Guide
Table of Contents
- 1. Product Overview & Specifications
- 2. Applications & Use Cases
- 3. Comparative Analysis with Other Curing Agents
- 4. Real-World Customer Case Studies
- 5. How to Optimize PACM Usage
- 6. Request a Quote or Sample
1. Product Overview & Specifications
PACM (1,3-Bis(aminomethyl)cyclohexane) (CAS 1761-71-3) is a cycloaliphatic diamine epoxy curing agent with exceptional thermal stability and chemical resistance. Key parameters:
| Parameter | Value |
|---|---|
| Chemical Name | 1,3-Bis(aminomethyl)cyclohexane |
| CAS Number | 1761-71-3 |
| Molecular Formula | C10H22N2 |
| Appearance | Colorless to pale yellow liquid |
| Purity | ≥99% |
| Viscosity (25°C) | 50-100 mPa·s |
| Density (20°C) | 0.95-0.98 g/cm³ |
2. Applications & Use Cases
Primary Industries:
- Composite Materials: Aerospace/automotive structural parts requiring high Tg (180-220°C).
- Electronic Encapsulation: LED potting, semiconductor underfills (CTE < 60 ppm/°C).
- Adhesives: High-strength bonding for metals/plastics (lap shear strength >20 MPa).
- Coatings: Chemical-resistant tank linings (withstands pH 1-14).
3. Comparative Analysis
| Agent | PACM | DETA | IPDA | DDM |
|---|---|---|---|---|
| Viscosity | Low (50-100 mPa·s) | High (15,000 mPa·s) | Medium (200 mPa·s) | Solid |
| HDT (°C) | 220 | 120 | 160 | 180 |
| Pot Life (25°C) | 90-120 min | 30 min | 60 min | 240 min |
4. Real-World Customer Case Studies
Case 1: Aerospace Composite Manufacturer
Client: AeroTech Solutions (France)
Challenge: Needed HDT >200°C for engine cowlings.
Solution: PACM-based system cured at 150°C/2h + 180°C/4h.
Result: Achieved Tg 215°C, 40% weight reduction vs aluminum.
Case 2: PCB Encapsulation Provider
Client: Shenzhen ElectroGuard Co. (China)
Challenge: Delamination in high-humidity environments.
Solution: PACM formulation with 0.5% silane additive.
Result: 0% failure after 1000h 85°C/85% RH testing.
5. Usage Guidelines
Mixing Ratio: 25-35 PHR (per hundred resin)
Cure Schedule:
– Stage 1: 80-100°C × 1-2h (gelation)
– Stage 2: 150-180°C × 2-4h (post-cure)
Safety: Use PPE; shelf life 12 months @25°C.
6. Request Pricing/Samples
Contact our technical team:
Email: info@vivalr.com
Phone: (86) 15866781826



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