Product Description of H.B. Fuller Tonsan®AT 2641
Tonsan® AT 2641 is a two-component polyurethane structural adhesive designed for bonding composite materials. It cures at room temperature or can be accelerated by heating. Once cured, it provides excellent adhesion, impact resistance, water resistance, electrical insulation, and corrosion resistance, making it suitable for various industrial applications.
Features of H.B. Fuller Tonsan®AT 2641
- Suitable for bonding different composite materials
- High toughness and strength
- Fast curing speed
- Excellent adhesion and durability
Applications of H.B. Fuller Tonsan®AT 2641
- Composite material bonding
- Structural bonding in industrial applications
- Adhesive applications requiring impact and corrosion resistance
About Prostech
Prostech offers specialty materials (adhesives, tapes, thermal interface materials, insulating materials, sealants, PCB protection materials, …) along with manufacturing solutions. We proudly serve a wide range of industries and are an authorized distributor for leading global manufacturers of industrial materials and equipment. Our product range is designed to deliver customized solutions that address each customer’s unique needs.
With years of experience and a successful project history, we are confident in our ability to provide comprehensive material solutions. These solutions effectively tackle the challenges manufacturers face. To explore our full product catalog, simply click here. Our dedicated team is ready to assist with:
- Provide quotation, sample, TDS/MSDS, and technical consultation
- Testing sample quality and verifying product compatibility in our laboratory
- Customizing material formulas for special applications
- Adapting product sizes, quantities, and packaging to meet specific needs
- Offering expert advice on suitable equipment and automation processes
- Delivering technical training and on-site support for optimal product use
Moreover, Prostech ensures the safe and accurate global delivery of all materials, including “dangerous goods”, in compliance with legal regulations. For personalized technical support or to receive a quotation, please contact us today.
| 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 |
