1. Under normal temperature, the A/B glue can be operated for a long time after mixing (operation time: a period of time before the gel is thickened); Under heating conditions, it can cure quickly, which is beneficial for use on automatic production lines
Thermal conductive sealing adhesive is a two-component silicone adhesive used as the base material, with a certain proportion of heat-resistant and flame-retardant additives added, and cured to form a thermal conductive sealing adhesive. It can reliably protect sensitive circuits and components in a wide range of temperature and humidity changes for a long time, and also has certain characteristics such as earthquake resistance, fall resistance, and dust prevention
high reliability
High thermal conductivity
high compressibility, soft and elastic
Natural viscosity, double-sided self-adhesive
Compliant with ROHS and UL environmental requirements
| Performance indicators | reference standard | Test value | |
| Before curing | Appearance | Visual inspection | White (A)/Gray (B) fluid |
| Viscosity of component A (mPa.s, 25℃) | GB/T 2794-1995 | 6000～7500 | |
| Viscosity of component B (mPa.s, 25℃) | GB/T 2794-1995 | 12000～14000 | |
| AB mixing density (g/ml) | GB/T 13554-92 | 2.2±0.1g/ml | |
| Operation performance | Two-component mixing ratio (weight ratio) | Actual test using system | A:B=1:1 |
| Viscosity after mixing (mPa.s, 25℃) | GB/T 2794-1995 | 9000～12000 | |
| Operating time (min, 25℃) | Actual test of usage environment | 20 | |
| Tack drying time (min, 25℃) | GB/T 13477.5-2002 | 50~90 | |
| Initial solidification time (min, 25℃) | Actual test of usage environment | 180 | |
| After curing | Hardness(shore A) | GB/T 531.1-2008 | 40±5 |
| Thermal conductivity [W (m·K)] | ASTM D5470-06 | 1.5±0.15 | |
| Dielectric strength (kV/mm) | GB/T 1695-2005 | ≥18 | |
| Dielectric constant (1.2MHz) | GB/T 1693-2007 | ≤4.0 | |
| Volume resistivity (Ω·cm) | GB/T 1692-2008 | ≥1×10 14 | |
| Operating temperature range (℃) | Actual test of usage environment | -40～200 | |
| Elongation at break (%) | GB/T 528-2009 | 20 | |
| Tensile strength (MPa) | GB/T 528-2009 | 1.1 | |
