Product Introduction
Tonsan® TS856 is a high-performance two-component (2K) polyurethane structural adhesive designed for bonding composite materials. This adhesive offers excellent adhesion, impact resistance, water resistance, and electrical insulation. It can cure at room temperature or be accelerated with heat, ensuring superior performance across various industries.
Tonsan® TS856 Features
- High toughness and strong adhesion
- Fast curing speed
- Temperature resistance from -40°C to 100°C
- Tensile strength ≥2.5 MPa, elongation ≥200%
- Excellent durability and corrosion resistance
Tonsan® TS856 Applications
- Bonding composite materials in automotive, aerospace, and marine industries
- Adhesion for electronic components and insulation devices
- Suitable for high-strength and impact-resistant products
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?
| Specification | Details |
| Chemical Base | Polyurethane |
| Product Type | Structural adhesive |
| Component | Two-component (2K) |
| Curing Type | Reactive |
| Appearance/Color | Part A: Black, Part B: Yellow, Mixed: Black |
| Viscosity (mPa.s) | Part A: ~70,000, Part B: ~40,000 |
| Density (g/ml) | 1.37 ± 0.05 |
| Mixing Ratio (A:B) | 4:1 (by volume & weight) |
| Curing Condition | Room temperature or accelerated with heating |
| Open Time at 35°C | ~5 minutes |
| Green Strength (90°C/80s) | ~1.0 MPa |
| Shore Hardness (A) | 60-70A |
| Tensile Strength (MPa) | ≥2.5 MPa |
| Elongation (%) | ≥200% |
| Lap Shear Strength (MPa) | ≥2.5 MPa |
| Service Temperature (°C) | -40 to 100°C |
| Shelf Life | 6 months (15-30°C storage) |
| Packaging Options | 400ml cartridge, 5-gallon pail, 55-gallon pail |



