PERMABOND® PT321
PERMABOND® PT321 is a two-component, room temperature curing polyurethane adhesive with a 1:1 mix ratio. It adheres strongly to a variety of substrates and offers resistance to impact and vibration, making it ideal for structural bonding in demanding environments.
PERMABOND® PT321 Features:
- Excellent adhesion to various substrates
- Cures at room temperature
- Simple 1:1 mix ratio
- Impact and vibration resistant
- Non-slump, thixotropic formula
PERMABOND® PT321 Applications:
- Bonding metals, plastics, and composites
- Structural and industrial assembly
- Applications with dynamic stresses
- Vertical and overhead bonding
About Prostech
Prostech Philippines is a one-stop solution provider for specialty materials and equipment across electronics manufacturing, from PCBA to final assembly. Our core material and equipment solutions include:
- PCB Assembly Materials
- Cleaning & Degreaser
- Circuit Board Protection
- Thermal Management Solutions
- EMI Shielding
- General Assembly Adhesives
- Elastomeric Materials
- Process Equipment: Potting & Coating Systems, UV/ Heat Curing, Plasma Treatment, Tape placement automation, and cleaning machines
Technical Added Value to customer
Prostech offers customized material and process equipment solutions with engineering support throughout R&D, production process optimization, and performance validation. Our in-house lab located in Alabang, Muntinlupa is equipped to conduct electronics material testing, application simulation, and adhesive validation, helping customers reduce the need for onsite trials and accelerate implementation.
International Supply Chain Advantage
Regional warehouse hubs across Vietnam, Singapore, Malaysia, and the Philippines ensure cross-border reliable supply. In Philippines PEZA-bonded warehouse located at Lima Industrial Park, Batangas enables Prostech to provide responsive, demand-based delivery and significantly shortens standard lead time for Philippines customers.
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Physical Properties of Uncured Adhesive
|
|
PT321 A |
PT321 B |
|
Chemical composition |
Polyurethane |
Isocyanate |
|
Appearance |
Black |
Cream |
|
Viscosity @ 25°C |
4000-8000 mPa.s (cP) Thixotropic |
3000-6000 mPa.s (cP) Thixotropic |
|
Specific Gravity |
1.25 |
1.45 |
Typical Curing Properties
|
Ratio of use |
1 : 1 by volume |
|
Maximum gap fill |
5 mm (0.2 in) |
|
Pot life |
60-90 seconds |
|
Handling time (steel) ISO4587 (0.3 N/mm² shear strength is achieved) |
10-15 minutes |
|
Full cure |
@23°C: 24 hours @90°C: 30 minutes |
Typical Performance of Cured Adhesive
|
Shear strength* (ISO4587) |
Zinc: 6-8 MPa (900 -1200 psi) Steel: 18-25 MPa (2600 -3600 psi) Carbon fibre: 6-8 MPa (900 -1200 psi) |
|
Tensile strength (ISO37) |
20-25 MPa (2900-3600 psi) |
|
Elongation at break (ISO37) |
<10% |
|
Hardness (ISO868) |
70-80 Shore D |
|
Coefficient of thermal expansion (ASTM D- 696) |
85 x 10-6 1/K |
