HONG YE SILICONE Waterproof & Insulation Electronic Silicone, also called Electronic Encapsulation Adhesive or Silicone Encapsulant, is a low-viscosity two-component RTV silicone that enables fast deep curing at room temperature. It adheres excellently to PC, PP, ABS, PVC and metals, featuring UL94-V1 flame retardancy, superior waterproof and insulation performance, fully complying with EU ROHS directives. As a core product matching our liquid silicone, RTV 2 Silicone Rubber, Industrial mold silicone rubber, Pad Printing Silicone and Silicone Potting Compound, it’s ideal for potting circuit boards, LED displays and electrical modules, with customizable parameters and multiple packaging options for bulk procurement. Product Overview
Our Waterproof & Insulation Electronic Silicone is a professional two-component RTV electronic potting silicone, a key part of HONG YE SILICONE’s full silicone product matrix. Also known as electronic silicone or encapsulation silicone rubber, it is designed for potting, waterproofing, insulation and sealing protection of electronic components. Uncured it is a viscous liquid with adjustable fluidity; cured it forms a stable protective layer, solving the pain points of electronic devices being damaged by moisture, dust or short circuits, and perfectly matching the mass production needs of electronic manufacturing enterprises.
Product Features & Advantages
1. Superior waterproof & insulation performance: Delivers excellent waterproof and insulation effects, with volume resistivity ≥1.0×10¹⁶ Ω·cm and dielectric strength ≥25 kV/mm, effectively preventing short circuits and protecting electronic components from moisture erosion.
2. Fast room-temperature curing: Enables rapid deep curing at room temperature, 3-5 minutes for initial curing and 24 hours for full curing, with curing speed affected by ambient temperature and humidity, improving production efficiency.
3. Strong adhesion & wide compatibility: Bonds firmly to PC, PP, ABS, PVC and various metal surfaces, with excellent adhesion performance that ensures no peeling or cracking, adapting to diverse component materials.
4. UL94-V1 flame retardancy & EU ROHS compliance: Meets strict flame retardant standards to reduce fire risks, fully complies with EU environmental directives, suitable for global market access and safe application.
5. Easy operation & cost-saving: Low viscosity, easy to mix and pot, supports optional vacuum defoaming; mixed glue can be used flexibly, and stratified colloid can be reused after stirring, avoiding material waste.
Technical Specifications (HY-9325)
It is a two-component silicone with both Component A and B being viscous liquids, each with a viscosity of 500±100 cps, mixed at a 1:1 weight ratio. The operable time is 30-120 minutes, initial curing time 3-5 minutes, and full curing time 24 hours. Cured it reaches Shore A hardness of 25±2, thermal conductivity ≥0.2 W(m·K), dielectric constant 3.0～3.3 (1.2MHz), volume resistivity ≥1.0×10¹⁶ Ω·cm, and UL94-V1 flame retardancy. These parameters are for HY-9325; other models and customizable parameters are available on request.
How to Use
1. Preparation: Fully stir Component A to mix settled black pigment evenly; shake Component B thoroughly to ensure uniform material composition without stratification.
2. Mixing: Blend Component A and B strictly according to the 1:1 weight ratio, stir thoroughly to guarantee consistent waterproof, insulation and curing performance.
3. Deaeration (Optional): Place the mixed liquid into a vacuum container, deaerate for 3 minutes under 0.08MPa to remove air bubbles, then ready for灌注 use.
4. Potting & Curing: Pour the treated silicone onto target electronic components, place at room temperature for curing. Proceed to the next process after initial curing, and ensure 24 hours for full curing to achieve optimal performance.
Application Scenarios
Widely used for potting and protection of various circuit boards, electrical modules, outdoor LED displays, and electronic accessories. It is suitable for electronic component insulation, product potting, waterproofing and sealing fixation, and applicable to scenarios such as home appliance control boards, outdoor electronic devices and industrial control modules. It effectively extends the service life of electronic products, reduces failure rates and after-sales costs, becoming an essential material for electronic manufacturing, LED lighting and industrial control industries.
Certifications and Compliance
HONG YE SILICONE holds ISO9001 quality management system certification, CE and UL certifications. Our Waterproof & Insulation Electronic Silicone fully complies with EU ROHS environmental directives and UL94-V1 flame retardant standards, meeting the quality, environmental and safety requirements of global electronic material markets, ensuring smooth import and reliable application in international projects.
Customization Options
We provide professional OEM customization services. According to customers’ different application scenarios and production needs, we can customize key parameters such as cured hardness, viscosity, operable time and curing speed. We also support personalized formula development to meet special requirements for waterproof level, insulation performance or flame retardant grade, adapting to diverse bulk procurement needs.
Production Process
The product undergoes strict multi-link quality control: high-quality Silicone raw materials inspection → precise formula mixing (ensuring uniform pigment and performance) → automated production and filling → pre-production sample curing and performance testing → full inspection of finished products before shipment. Our professional QC team monitors the whole process, backed by 20+ years of silicone manufacturing experience, ensuring consistent performance of each batch.
FAQ
Q1: What packaging specifications are available? A1: Iron drums (5kg, 20kg, 25kg, 200kg) and plastic drums (20kg/barrel), suitable for small-batch testing and large-batch mass production.
Q2: What is the shelf life and storage method? A2: 1 year shelf life; store in sealed containers in a cool, dry place; stratified colloid can be stirred evenly before use, with no impact on performance.
Q3: Is the product a hazardous material for transportation? A3: Non-hazardous, can be transported as general chemicals, complying with international transportation standards.
Q4: What should I do if the silicone accidentally gets into mouth or eyes? A4: Rinse immediately with clean water; if necessary, seek medical advice; it is non-toxic and non-irritating.
Q5: Can the mixed glue be stored for later use? A5: No, mixed glue should be used up at one time to avoid curing and material waste.
Shenzhen Hong Ye Jie Technology Co., Ltd
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