Transparent Thermally Conductive Silicone Potting Compound For Electronics

BZ-3703 is an economical two-component room-temperature-curing condensation-type silicone potting compound exclusively designed for basic LED lighting products and low-power electronic devices. Featuring moderate transparency, wide temperature tolerance (-50~180℃), and RoHS compliance, it provides reliable protection against UV radiation, thermal shock, and moisture for standard components. However, its performance is constrained by basic electrical insulation (breakdown voltage ≥15 kV/mm) and limited thermal conductivity, making it unsuitable for high-power systems, extreme environments, or precision electronic applications.

1. Cost-optimized solution: Delivers reliable performance at a competitive price point, ideal for high-volume production of entry-level LED lighting and consumer electronics
2. Simplified operational workflow: Excellent fluidity and a 10:1 mixing ratio (A:B) enable straightforward pouring and potting operations with minimal training
3. Balanced thermal stability: Maintains consistent performance across -50 to 180℃, withstanding typical temperature fluctuations in residential and commercial environments
4. High-clarity encapsulation: Preserves strong light transmittance, suitable for standard LED modules and basic optical assemblies
5. Adequate UV resistance: Offers reliable defense against ultraviolet degradation in non-extreme outdoor applications
6. RoHS-compliant formulation: Meets EU RoHS directives, supporting eco-friendly manufacturing practices
7. IPX7 waterproofing: Ensures sealed components remain functional in wet conditions, ideal for general outdoor lighting and portable devices

Parameters		Part A BZ-3703	Part B BZ-3703
Before curing	Appearance	Clear liquid	Clear liquid
	Viscosity(cps.25℃)	1000-1600	45-55
	Initial mixed viscosity(cps.25℃)	750-1250
	Density(g/cm³.25℃)	0.96±0.05	0.98±0.05
Mixing & Curing	Mix ratio(by weight)	A:B=10:1
	Pot life 130±30g(min.25℃)	45±15
	Curing condition	Room temperature curing
	Surface drying time 30g(H.25℃)	1H-2H
	Curing time 30g(H.25℃)	3H-5H
After curing	Color	Clear
	Hardness (Shore A)	15±5A
	Temperature resistance(℃)	-50~180℃
	Water absorption(24H)	≤0.5%
	Surface resistivity(Ω/sq)	≥1.0×1014
	Volume resistivity(Ω.cm)	≥1.0×1013
	Elongation at break(%)	≥30%
	Dielectric constant(at 50Hz)	≤4.5
	Breakdown voltage(kV/mm)	≥15

1. Entry-Level LED Lighting: Encapsulates basic LED modules, drivers, and fixtures in residential lighting, decorative lights, and low-power outdoor lamps
2. Consumer Electronics: Protects power supplies, small sensors, and control circuits in household appliances, toys, and personal electronics
3. Small Electrical Appliances: Seals components in kitchen appliances, power tools, and garden equipment, providing basic protection against moisture and dust
4. Automotive Auxiliary Lighting: Encapsulates interior lights, dashboard displays, and auxiliary exterior lights in vehicles
5. Solar-Powered Devices: Insulates small solar panels, charge controllers, and battery systems in portable solar lights and garden decor

1. Pre-potting Preparation: Calibrate scales, prepare potting tools, cleaning tools, check machine settings, check vacuum pump force, etc.
2. Product Pre-treatment: Place product on a level surface or fixture. Remove dust, clean, degrease, and dry if necessary.
3. Accurate Proportioning: Manual operation requires precise mixing according to the specified ratio and recording. Machine potting requires calibrated ratios and first-article confirmation is recommended.
4. Mixing & Stirring: Manual operation requires thorough stirring or using electric stirrers to ensure homogeneous mixing. Machine potting requires sufficient stirring speed, adjust as needed.
5. Uniform Potting: Manual operation should be done in small, multiple batches to ensure uniformity. Machine potting should follow the programmed path for quantitative dispensing.
6. Inspection or Secondary Potting: After potting, visually inspect as needed. Perform touch-up, bubble removal, or secondary potting if required.
7. Curing: Allow the potted and inspected products to cure at room temperature , according to product and process requirements.
8. Final Product Confirmation: Perform visual inspection and performance testing as required by the customer.

1. Part A: Typically supplied in 20kg sealed plastic drums.

   Part B: Typically supplied in 5kg sealed plastic drums.

2. Store and transport as a general chemical product.
3. Store sealed, protected from light at room temperature. Shelf life varies from 6 to 12 months depending on packaging; please refer to the expiry date on the shipping package.
4. Store and transport as a general chemical product, Keep out of reach of children.

Q: What are the primary applications of Weather-Resistant Transparent Silicone Potting Compounds?

A: These compounds are ideal for protecting electronic components, outdoor LED lighting, sensors, and other devices exposed to harsh weather conditions due to their excellent weather resistance and transparency.

Q: How does the transparency of this silicone potting compound benefit my project?

A: The transparent nature allows for visual inspection of components after potting, and it does not obstruct light, making it perfect for LED encapsulation and optical applications.

Q: Can this silicone potting compound withstand extreme weather conditions?

A: Yes, it is specifically formulated to resist UV radiation, moisture, temperature fluctuations, and other environmental factors, ensuring long-lasting protection outdoors.

Q: Is this product easy to apply and cure?

A: Yes, the compound has excellent flow properties for easy application and cures at room temperature to form a flexible, durable, and weatherproof seal.

Q: Does the silicone potting compound provide electrical insulation?

A: Absolutely, it offers excellent electrical insulation properties, protecting sensitive electronic components from moisture and contaminants.