Chengdu Guibao Science & Technology Co., Ltd.,

Thermal Conductive Potting Industrial Silicone Sealant / Two Part Silicone Sealant

Product Details:
Place of Origin: CHINA
Brand Name: GUIBAO
Certification: Rohs/ UL
Model Number: 4926
Payment & Shipping Terms:
Minimum Order Quantity: 100 SETS
Packaging Details: Part A: 2.5kg/pail Part B: 2.5kg/pail One set=2.5kg Part A+ 2.5kg Part B
Delivery Time: 4 work days
Payment Terms: T/T
Supply Ability: 100 SETS per 4 work days
  • Detail Information
  • Product Description

Detail Information

Color: Part A : White Part B: Black Type: Two Part
Material: Silicone Sealant Properties: Volume Resistivity, Breakdown Strength,Dielectric Constant(1MHz),Thermal Conductivity
Ratio: 1:1 By Weight Keywords: Silicone Sealant, Addition Type ,electronic Components, Thermal Conductive, Electric Equipment
High Light:

acid resistant silicone sealant


window and door silicone sealant

Product Description

Thermal Conductive Potting Sealant Industrial Silicone Sealant


Two part addition type RTV silicone sealant; cure rate increases by heating




Potting electronic components for watertight, thermal dissipation and buffer purposes

Bonding, fixing and thermal conductive potting for electric equipment




Good flowability as supplied , good self-debubbling performance

Stable and elastic over the temperature -40℃~+180℃

Excellent electrical insulation , and resistance to arch, corona and shock

Excellent resistance to water ,moisture, ozone and aging, long lasting protection for electric and electronic parts

Excellent thermal conductivity, efficient heat dissipation




These values are not intended for use in preparing specifications.

Test Method Property Unit Result
As supplied
/ Appearance

Part A: white fluid

Part B: black fluid

GB/T 2794 Viscosity as mixed at 25 ℃ mPa•s 3000~4500
GB/T 16776

Working time

at 25℃

Min. ≥40
/ Initial cure time h 4
/ Curing time h 24
Cured after 7 days at 23±2,RH 50±5%
GB/T 13477 Density g/m³ 1.80±0.05
GB/T 531.2 (ISO 7619) Hardness Shore A 57
GB/T 528 (ISO 37) Tensile strength MPa 1.8
GB/T 528 (ISO 37) Elongation at break % 70
GB/T 1692 Volume resistivity Ω·cm 1×1015
GB/T 1695 (ASTM D 149) Breakdown strength kV/mm 20
GB/T 1693 (ASTM D 150) Dielectric constant(1MHz)   3.0
GB/T 11205 Thermal conductivity W/m·K 0.76

























Mix part A base to Part B curing agent at a ratio of 1:1 by weight, and then pot the mixture into the required parts, place at room temperature to let it form elastomer, use after 24 ~48 hours.

When using automatic dispensing machine, set at a ratio of 1:1 by weight of part A to Part B for a test first and then put into use.




Guibao4926 should be stored in original unopened containers over temperature from 4℃to 27℃ and be kept away from rain or direct sunshine.

Guibao 4926 has a shelf life of 9 months from the date of manufacture.

Guibao 4926 is non-hazardous for transportation.




The surface of the parts must be cleaned, free of any N,P,S,havey metal or any other compound

Screw tight the cover of Part B immediately after use to avoid the exposure to atmospheric moisture

Part A base and part B curing agent should be fully mixed to ensure the homogenity of the sealant, or it affects the performance of the sealant.

Part A and Part B should be kept separately and get mixed on site, and be used within a short time after mixing.

For common low-voltage electrical potting, de-bubbling is not needed, but vacuum de-bubbling for 3~5 minutes is required for high voltage electrical potting.


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