Electrical Product Potting Compound waterproof sealant ST-210EW
This product is a two-component condensed liquid silicone rubber vulcanized at room temperature.
Product Description
1. The product picture is as above
2. Product features and applications
This product is a two-component condensed liquid silicone rubber vulcanized at room temperature. The adhesive has the advantages of
low viscosity, low hardness, good toughness, good adhesion with epoxy resin, copper, iron, aluminum and other materials, and has excellent insulation, moisture-proof, shockproof and thermal conductivity, so that electronic components can operate safely under harsh
conditions. Mainly used for electronic appliances, led lamps, electronic components, display screen and other filling.
3. Main technical datas
| Item | Test Standard | Standard values |
| Model no. | / | ST-210EW |
| Appearance | Visual inspection | WhiteViscous Liquid |
| Operable time（25℃）/min | 25ºC | 50-90 |
| Surface curing time（25℃）/min | 25ºC | 60-120 |
| Curing time（25℃）/H | 10mm thickness | 3-4 |
| Viscosity /mPa.S | 25ºC | 2000±200 |
| Density /g/cm3 | GB/T533-2008 | 1.32±0.05 |
| Hardness/ Shore A | GB/T531.1-2008 | 25±2 |
| Tensile strength /MPa | / | ≥1.0 |
| Tensile Rate /‰ | GB/528-2009 | ≥100 |
| Tensile Strength /KN.m ¹ | GB/T529-2008 | ≥2.0 |
| Volume Resistivity /Ω.cm | GB/1692-2008 | 1.0*1013 |
| Operational Temperature Range | / | -40～200℃ |
| Dielectric Constant（50Hz） | GB/1693-2007 | 3.0 |
| Dielectric Strength /kV.mm ¹ | / | 22 |
(non-standard value)
Notes: The above performance data are based in 25±2 ℃ and relative humidity 50 ± 5%.
4. How to Use
1) Stirring: before mixing, mix component A in the barrel with manual or mechanical equipment for 5-7 minutes. The agitator should be placed at the center of the liquid level. The depth of the agitator should be 1/2 to 2/3 of the depth of the liquid. Component B shall be shaken about 5-7 times in the sealed state before use.
2) Mixing: the two components must be completely mixed according to the weight ratio A:B= 10:1. Mixing can be done manually or with equipment. If the ratio needs to be changed, it should be tested before practical application. Generally, the higher the dosage of B component, the shorter the operation time and curing time. The higher the ambient temperature, the shorter the operating time and curing time. Generally, heating is not recommended to avoid pinholes or bubbles on the surface and inside, which may affect the appearance and sealing performance of the product.
3）Defoaming: in air-sensitive applications, the product is vacuumed after stirring.
4）Working hours: under normal temperature 25 ℃, the viscosity of the products will increase with the increase of time, do now with chef, when using must be completed within a short time (30 minutes).Do not pour the excess mixture into the remaining container.
5. Storage and Transportation
1) This product should be sealed and stored in a cool , ventilated and dry place (5 ℃ to 25 ℃), and prevent being exposured in the rain and sun.
2) The storage period of glue A is 12 months at room temperature, and that of glue B is 6 months. After long-term storage, the filling in the glue will settle. Please mix it well and use it without affecting its performance.
3) This product is not a dangerous product, but please pay attention to avoid the contact between the curing agent and the skin and eyes. Once in contact, wash the product with appropriate amount of detergent and water immediately. If it splashes into the eyes, wash it with flowing water for at least 15 minutes, and consult the doctor.
4) After the product is opened, it should be used up as soon as possible. The unused products should be sealed and stored in a safe place.
5)This product is non-dangerous and can be stored and transported as general chemicals.
6）Due to the reaction mechanism, the electrical properties of the product should be tested after 72 hours.
6. Packing
This product is packed in plastic drum: Glue A is 10kg/pc, and glue B is 2kg/pc.
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WARM REMINDER: Thank you for your trust and support of our products. Due to the diversity of practical applications, we cannot grasp the application conditions. Therefore, please have a test before confirm if it meets your requirements and avoid unnecessary waste and loss. We do not guarantee the issues under specific conditions, do not assume any direct, indirect or accidental responsibility. If you have any questions, please contact us, and we will make a solution for you. Service hotline: 400 168 3323
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