Brief introduction
| model | HongJin-S721 |
| Specification | 20g/branch |
| characteristic | HongJin-S721 is a one-component heat-curing elastic silicone rubber. Its main component is a polymer containing vinyl siloxane and silicone resin, which is cured by heating and reacting. No heat release and no shrinkage during the curing process, this product has a translucent appearance, and the liquid is transparent after curing. This product has good bonding properties to a variety of materials, including glass, metal, rubber, plastic, wood and inorganic materials, etc. |
| Applicable Products | It is widely used in the bonding and sealing of LED lamps, electronic appliances and other products, especially suitable for sealing, potting, insulation and waterproofing of automobile and mobile phone connectors and chip buffer protection in optocoupler components. |
Technical parameter
Exterior | colorless translucent liquid |
Viscosity（mpa.s） | 6500±1500 |
density（g/cm3） | 1.05±0.1 |
hardness（Shaw BrothersA） | 15～25 |
Curing method | 120℃/1小时 |
Shear strength（MPa）,7sky25℃/50%RH,AL/AL | ≥0.5 |
Precautions
1、Organotin compounds and other organometallic compounds. This product needs to be stored at low temperature (below -20 ℃), and should be taken out 2 hours in advance when it is used for the first time to restore to room temperature. During the use process, attention should be paid to avoid contact with the following substances.
2、Silicone rubber containing organotin compounds.
3、Sulfur, polysulfides, polysulfones and other sulfur-containing materials.
4、Amines, urethanes, or other amine-containing materials.
5、Unsaturated hydrocarbon plasticizer.
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