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Min. Order : 10 Kilograms

High Quality good fire resistance Silicone thermal Potting sealant Compound For power supply

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Port: shenzhen
Payment Terms: L/C,T/T,Western Union
Supply Ability: 50000 Kilogram/Kilograms per Quarter
Other Names: potting sealant
Usage: for miscellaneous electronic devices,For Led display, power module and miscellaneous electronic devices
Place of Origin: Guangdong China
Color: Black or gray ( can customized)
Hardness: 60 shore A
Model Number: HCH
Flame rete (UL): V0
Appearance: Black fluid and White fluid
CAS No.: 7085-85-0
Brand Name: KUAYUE
Main Raw Material: Silicone
Type: Two Component
Product name: thermal conductive potting compound
EINECS No.: 230-391-5
Classification: Double Components Adhesives
Thermal conductivity: 3.0w/m.k-3.3w/m.k
Features: Low Viscosity, good leveling, seismic, good fire resistance
Mixing ratio: 1:1
Certificate: ROHS, UL, REACH, ISO, SGS
Packaging Detail: The normal package is bucket, if export quantities are too much, we will put the bucket on the planker, and then pack the whole planker up to transport.
Shenzhen Kuayue Electronic Co., Ltd.
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Low price high thermal Transparent Thermal Conductive Silicone Potting Encapsulant for LED light




HCH series heat conduction sealant is a low viscosity silicone sealant with good fluidity and stability. After mixing, it can be cured at room temperature or heated. The higher the temperature is, the faster the curing speed will be. This series of products do not produce any by-products in the curing reaction process, with minimal shrinkage, repairability and deep curing into elastomers. In a wide range of temperature and humidity changes, long-term and reliable protection of sensitive circuits and components, with excellent electrical insulation performance, can withstand environmental pollution, to avoid stress and vibration and moisture and other environmental factors caused by damage to the product, especially for the sealing material requirements heat dissipation of good products. This series of products have excellent physical and chemical resistance.

HCH potting sealant product data


Before curingAppearanceBlackWhiteBlackWhiteBlackWhiteBlackWhite
Operating performanceUsing the proportion1:11:11:11:1
Mixed viscosity(cps)4000450045005500
Operational time(min)60-12060-12060-12060-120
Curing time(min)480(25℃)480(25℃)480(25℃)480(25℃)
Heat curing(min)20(80℃)20(80℃)20(80℃)20(80℃)

After curing
Hardness(shore A)60±560±560±570±5
Temperature range(℃)-60~200-60~200-60~200-60~200
Dielectric constant(1MHZ)3.0~3.33.0~3.33.0~3.33.0~3.3
Volumetric resistivity(Ω.cm)≥1.0×1016≥1.0×1016≥1.0×1016≥1.0×1016
Coefficient of expansion(m/m.k)≤2.2×10-4≤2.2×10-4≤2.2×10-4≤2.2×10-4
Flame retardant(UL94)V0V0V0V0
Thermal conductivity(W/m.k)


1. Excellent liquidity and automatic leveling after mixing;
2. Good insulation performance;
3. No shrinkage or exothermic phenomena after curing;
4. Flexible elastomer after curing;
5. Excellent thermal shock resistance;
6. Excellent solvent resistance and waterproof performance;
7. Moisture-proof, earthquake-resistant and corona resistant.











 Q1. Can we get some free samples from you?

A: Yes, you can get some free samples, but the shipping cost of samples should be paid by you.


Q2. what's certificates of thermal conductive materials you have? and how to make sure your products' quality meet with the requirement of UL?

A:We have obtain UL, SGS, ROHS ISO and REACH certificattes, approved by third party with testing report. we can provide you with the testing report of thermal conductive matrials to ensure our product quality.


Q3. Is thermal conductive gap filer pad can customize and die-cut? 

A: Yes , we offer warious thickness and color of our products according to your the specific requirements. and the products are available to die-cut bse on your need, the cost of die-cut according to the complexity of shape.

Q4. What's the benefits for electronic products to assemble thermal conductive silicone pad?

A: For electronic devices, one of the most important thing of issstability besides functions. Generally, long-term high temperature would short electronic component' working-life or even damage it. if apply thermal conductive silicone pad in IC, it would lower the internal temperature and prolong electronic component' working-time.


Q5. Do theermal conductive materials of your company have natural inherent stickiness on the surface?

A: Yes, our thermal conductive pad has natural inherent stickiness on the surface. it's convenient for you to place and rework without tearing the material. The operator can remove material from shied or heat sink and reuse it. You can use our materials without any hesitation.

Q6. What does the thermal conductive pad's natural inherent stickiness refer to?

A: The feature of the rubber itself has a natural inherent tack, without the addition of an adhesive . The surfaces with natural tack may help in the assembly process to temporarily hold the pad in place while the application is being assembled.

Q7. What's the series of your thermal conductive materials?

A: We have thermal conductive silicone pad with different thermal conductivity including HC100, HC150, HC200, HC250,HC300,HC400,HC500, HCP100. And we have thermal conductive adhesive tape: HCT with PET as base material and HCTM without PET as base material. We also have thermal conductive graphite sheet apply in different electronic industries. GSH is apply on smart phone, GSB is for laptop , and GSM is for LED.


Q8. Is thermal conductive gap filler pad with fiberglass?

A: Yes , all the thermal conductive materials except HCP series, thickness no more than 0.5mm can add fiberglass as carrier.


Q9. What kind of industry do your products mainly apply in?

A: Our products are widely used in various industries, including poower supply, LED lights, laptop, LED TV, Set top box, communication, heat transfer, chip IC, automotive electronics and photoelectricity etc.


Q10. What is life expectancy of thermal conductive silicone pad?

A: Our thermal conductive silicone pad use silicone rubber as based material. The service life of silicone pad depend on the service life of silicone rubber. The silicone rubber industry recognizes a 20-year life for silicone rubber when used within specified operation parameters.


Q11. What is the shelf life of thermal conductive gap filler pad?

A: The shelf life is a measurement of stable storage life in specified storage conditions. Shelf life for thermal conductive gap filler pad is one year after date of manufacture. For thermal conductive gap pad with adhesive, the shelf life is six months after the date of manufacture. After these dates, inherent tack and adhesive properties should be re-characterized.


Q12. Are thermal conductive materials eletrically isolating? Would they cause the short circuit of electronic components?

A: Yes, all our thermal conductive materials are isolating with the voltage endurance over thousands of volt.