Product Introduction
SX720BH is a black, high-hardness, one-component adhesive designed with a silyl-group polymer base, offering excellent adhesion, thermal stability, and electrical insulation. It cures quickly under ambient conditions and is ideal for robust electronic assembly needs. With strong mechanical properties, high viscosity, and superior resistance to moisture and heat, SX720BH ensures performance in demanding industrial applications. This adhesive is also free from halogens, siloxane, and hazardous substances, supporting environmentally responsible manufacturing.
SX720BH Features
- One-component black adhesive that cures at room temperature and humidity—no mixing needed.
- Quick tack-free time of 8 minutes and a high viscosity of 85 Pa·s for efficient vertical or gap-filling applications.
- Shore A hardness of 82 for strong mechanical rigidity with breaking strength of 3.2 N/mm².
- Moderate flexibility with 50% elongation and T-type peeling strength of 1 N/mm.
- Stable under extreme conditions with a glass transition point of -69°C and thermal conductivity of 1 W/m·K.
- Reliable electrical insulation: volume resistivity of 1.4×10¹² Ω·cm, dielectric constant of 6.2, and dielectric loss tangent of 0.28 at 100 Hz.
- Environmentally safe—free of halogen-based substances, antimony oxide, and phosphorus-based compounds.
- Does not contain low molecular siloxane (D3–D10), helping maintain clean manufacturing environments.
- Packaged in 200g and 333ml formats for flexible application needs.
SX720BH Applications
- Fixing and sealing of circuit board components such as capacitors and inductors.
- Sealing transformers and power modules for insulation, strength, and environmental resistance.
- Moisture-proof sealing of electronic parts in environments requiring higher mechanical rigidity.
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.
| Property | Value |
|---|---|
| Product code | SX720W Adhesives |
| Base | Special polymer containing silyl group |
| External appearance | Black paste |
| Viscosity (Pa·s / 23℃) | 85 |
| Specific gravity (g/cm³) | 1.57 |
| Tack free time (min) | 8 |
| Tensile shear adhesive strength (N/mm²) | 3.2 |
| T type peeling adhesive strength (N/mm) | 1 |
| Hardness (Shore A) | 82 |
| Glass transfer point (℃) | -69 |
| Breaking strength (N/mm²) | 3.2 |
| Breaking extension (%) | 50 |
| Linear expansion coefficient | 8.1×10⁻⁵ |
| Volume resistivity (Ω·cm) | 1.4×10¹² |
| Dielectric constant (100Hz) | 6.2 |
| Dielectric loss tangent (100Hz) | 0.28 |
| Thermal conductivity (W/m·K) | 1 |
| Capacity standards | 200g・333ml |
