Product Introduction
Tonsan® AT 2641 is a two-component polyurethane structural adhesive designed for bonding composite materials. It can cure at room temperature or be accelerated with heat. Once cured, it offers superior adhesion, impact resistance, and water resistance, making it ideal for various industrial applications.
H.B. Fuller Tonsan® AT 2641 Features
- Ideal for bonding composite materials
- High toughness and strength
- Fast curing speed
- Excellent adhesion and durability
H.B. Fuller Tonsan® AT 2641 Applications
- Composite material bonding
- Structural bonding in industrial applications
- Adhesive applications requiring impact and corrosion resistance
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.
Need help selecting the right product or solution?
Typical Properties
| Specification | Details |
| Chemical Base | Polyurethane |
| Product Type | Structural Adhesive |
| Component | Two-component |
| Curing Type | Reactive |
| Appearance (Part A / Part B / Mixed) | Black / Yellow / Black |
| Viscosity (Part A, mPa.s) | ~250,000 |
| Viscosity (Part B, mPa.s) | ~150,000 |
| Density (Part A & B, g/ml) | 1.25 ± 0.05 |
| Mix Ratio (By Volume / By Weight) | 1:1 / 1:1 |
| Open Time (23±2°C) | ~3 min |
| Gel Time (23±2°C) | ~5 min |
| Hardness (Shore A) | 60 - 80 |
| Tensile Strength (MPa) | ≥5.0 |
| Elongation at Break (%) | ≥250 |
| Lap-Shear Strength (MPa, PCABS-IPA Clean) | ≥3.5 |
| Service Temperature (°C) | -40 to 100 |
| Shelf Life (15-30°C) | 6 months |
