"Choose the right parameters, double the protection" - the excellent performance of room temperature vulcanized phenyl silicone rubber raw rubber not only comes from the material itself, but also depends on scientific selection and use methods. From understanding viscosity differences to controlling phenyl content, mastering these key parameters can make this material exert the maximum protection value.

First of all, understand the "viscosity code". The product viscosity range covers 2000-100000mPa.s, and different viscosities are like honey of different concentrations: low viscosity (2000-10000mPa.s) has good fluidity, suitable for potting gaps of small electronic components, and can flow and fill every corner by itself; medium and high viscosity (10000-100000mPa.s) is more suitable for making coatings, putty or binders, which can be applied to vertical surfaces without flowing easily, ensuring uniform coating thickness. When selecting, it is necessary to comprehensively judge according to the construction method (potting, brushing, bonding) and component structure. Choose low viscosity for complex structures and high viscosity for thick coatings.

Phenyl content is a "performance regulator". The phenyl content range of 2.5-60.0mol% is like the "performance knob" of the material: low phenyl content (2.5-10mol%) focuses on maintaining good electrical insulation and weather resistance, suitable for ordinary electronic potting; high phenyl content (30-60mol%) significantly improves low temperature resistance and radiation resistance, and is the first choice for cryogenic equipment and nuclear power facilities. If the equipment needs to cope with both low temperature and radiation, it is recommended to choose models with phenyl content above 40mol%.

Solubility brings "processing convenience". It can be dissolved in organic solvents such as toluene and xylene, which means that the construction consistency can be controlled by adjusting the solvent ratio to meet the processing needs of different scenarios. For example, when making thin coatings, solvents can be added to dilute to appropriate viscosity for easy spraying; when potting small gaps, dilution can reduce the generation of bubbles. However, it should be noted that curing occurs only after the solvent volatilizes, and the construction environment needs to be well-ventilated to avoid solvent residue affecting performance.

There are "golden rules" for storage and transportation. The product is packed in 25kg plastic buckets. During storage, it must be away from fire and heat sources and avoid direct sunlight, otherwise it may cause viscosity changes; in a cool and dry environment, the unopened product has a shelf life of up to 3 years, far exceeding that of ordinary rubber materials. There is no need to rush to discard it after the expiration date. Test key indicators such as viscosity and volatile content, and it can still be used normally if qualified.

Usage tips: Avoid contact with strong acids and alkalis during processing, otherwise it may affect the curing effect; when used in food or medical related equipment, high-purity models should be selected and volatile content (≤5.0%) should be tested; do a small test before mass use to confirm whether the hardness and elasticity after curing meet the requirements; waste materials should be sealed and treated as industrial solid waste to avoid solvent volatilization polluting the environment. 

For more information, please click here Room Temperature Vulcanized Phenyl Silicone Rubber