White Potting Gel HN-8808W - Non-Yellowing, Aesthetic & Reliable
Circuit Board Protection
Product Overview for Silicone Potting Compound:
The HN-8808W White Potting Compound is designed for electronic
applications where product appearance and long-term stability are
key. Its pure white color provides clear visual identification for
product series differentiation and quality traceability. It offers
excellent non-yellowing properties, maintaining a fresh appearance
even after long-term use, while providing durable waterproofing,
insulation, and physical protection for internal circuits. It is
widely used in consumer electronics, appliances, and high-end
lighting.
Key Performance Parameters for Silicone Potting Compound:
* Appearance (Mixed): White elastomer
* Mix Ratio (A:B): 10 : 1 (by weight)
* Viscosity (A/B): Component A: 2000-2600 cP, Component B: 20-30 cP
(GB/2794-1995)
* Density: 1.42±0.02 g/cm³ (GB/2794-1995)
* Pot Life (25°C): 40-60 minutes
* Cure Time (25°C): 4-6 hours (tack-free), 24 hours (full cure)
* Hardness (Shore A): 30-40 (GB/T531-1999)
* Volume Resistivity: ≥5.0×10¹⁴ Ω·cm (GB/T 31838.2-2019)
* Thermal Conductivity: 0.5±0.1 W/M·K (GB/T 38712-2020)
* Dielectric Strength: ≥14 kV/mm
* Dielectric Constant: ≤3.5
* Elongation at Break: ≤100%
Product Highlights for Silicone Potting Compound:
* Pure White Aesthetic: Provides a clean, white appearance that
enhances overall product quality and brand image.
* Superior Non-Yellowing: Special formulation effectively resists
UV and thermal oxidative aging, ensuring long-term color stability.
* Easy Identification & Tracing: White base facilitates laser
marking or label attachment, simplifying production management and
after-sales service.
* High Reflectivity: White surface helps reflect light and heat,
ideal for LED lighting to improve efficacy.
* Comprehensive Protection: Does not compromise on core protective
functions like waterproofing, insulation, and temperature
resistance.
Application Areas for Silicone Potting Compound:
* Control boards for high-end home appliances (e.g., coffee makers,
air fryers)
* LED indoor lighting, beauty devices
* Industrial control modules requiring color coding
* E-bike controllers, chargers
* Outdoor electronics (benefiting from its weather resistance)
Detailed Operating Guide for Silicone Potting Compound:
1. Surface Preparation: Ensure surfaces are free of dust, oil,
release agents, etc., to prevent affecting adhesion and appearance.
2. Pre-use Stirring: Stir Component A until fillers are uniformly
dispersed before use. This is the crucial first step for consistent
color and performance.
3. Accurate Weighing: Use an electronic scale to weigh Components A
and B precisely at a 10:1 weight ratio. Deviation can lead to
incomplete curing or property loss.
4. Thorough Mixing: Mix slowly in a clean container for at least 3
minutes, scraping sides and bottom, until color is uniform without
streaks.
5. Vacuum Degassing: Degas the mixed compound under vacuum for 2-4
minutes until no large bubbles remain on the surface. This ensures
a smooth, aesthetic surface finish.
6. Potting and Curing: Pour the compound slowly into the device,
allowing it to self-level. Cure at 25°C. Light handling is possible
after 24 hours; optimal performance is reached after 7 days.
Key Precautions for Silicone Potting Compound:
* Color Consistency: Filler settling in Component A causes uneven
color. Must stir thoroughly before use.
* Contamination Control: Mixing and potting tools must be clean;
any impurities will be very visible in the white compound.
* Do Not Heat Cure: Heating is prohibited as it causes foaming and
discoloration, affecting appearance and performance.
* Controlled Environment: The curing environment should be clean to
prevent dust from settling on the uncured surface.
Packaging & Storage for Silicone Potting Compound:
* Standard Packaging: 22kg/set (20kg A + 2kg B); 11kg/set (10kg A +
1kg B).
* Storage Conditions: Store in a cool, dry place away from direct
sunlight.
* Shelf Life: 6 months in original, unopened containers from date
of manufacture.
FAQ for Silicone Potting Compound:
1. Q: Under what conditions might the white compound yellow?
A: Prolonged exposure to strong UV (direct sunlight) and continuous
high temperatures (near 200°C) accelerates yellowing. Our optimized
formulation offers superior yellowing resistance compared to
standard market products.
2. Q: How do you ensure consistent color between batches?
A: We employ strict raw material control and automated production,
ensuring batch-to-batch color stability. We recommend checking a
sample before mass production.
3. Q: Is the white version's thermal conductivity the same as the
black?
A: Yes, both HN-8808W and HN-8808B have a thermal conductivity of
0.5±0.1 W/M·K. The white version uses special fillers to achieve
heat dissipation equal to the black version.
4. Q: Can I use the white compound if my product housing is
transparent?
A: Yes, but it will completely obscure internal components. If
visual inspection is needed, you should choose the HN-8808A/B
Transparent version.
5. Q: Can you customize other colors?
A: Yes. We support color customization (e.g., gray, blue) to meet
your brand identification needs. Please consult our sales for MOQ.
