HY939Modification silicon electronic sealants
is a non-sagging type, and HY939L is a self-leveling type, divided into one-component and two-component neutral curing, and the two-component ratio is 1:1. Modified silane sealant specially designed for long-term weather-resistant sealing in industrial fields such as electronic components and mechanical equipment manufacturing. It has low modulus and high displacement characteristics and is suitable for large displacements of joints.
Product details
Technical Parameters
| Main chemical composition | Modified Silane | ||
| Model No. | HY939 | R939L | |
| Appearance | Gray paste | Gray semi-leveling | |
| Sag (mm) | 0 | / | |
| Extrudability (ml/min) | 200 | 400 | |
| Surface drying time (min) | 30 | 30 | |
| Elongation at break（%） | 700 | 800 | |
| Tensile strength (MPa) | ≥0.7 | ||
| Elastic recovery rate（%） | ≥70 | ||
| Tensile modulus（MPa） | ≤0.4 | ||
| Fixed-stretch cohesiveness | No damage | ||
| Adhesion after cold drawing-hot pressing, water immersion and heat treatment | No damage | ||
Heat aging |
Thermal weight loss (%) | ≤3 | |
| Cracking, chalking | No. | ||
Packaging specification
Single-component plastic barrel: 2600ml/barrel, 4 barrel /carton, carton size: 260*260*310mm
Two-component plastic tube: 300ml/tube, 25 tube/carton, carton size: 305*205*245mm
