GUIBAO 4808 Silicone Electronic Potting Sealant

Potting Sealant, Electronic Sealant, Solar Panel Sealant Basic Uses Potting the junction boxes of solar modules Potting the wind turbines, motors, air cooler machines and other large electromechanical equipment for watertight, thermal dissipation and buffer purposes Bonding, fixing and thermal conductive potting for electronic components and electric equipment Features UL certified Good flowability as supplied , good self-debubbling performance Stable and elastic over the temperature -60℃～ 200℃ Excellent electrical insulation , and fire resistance performance Excellent resistance to water ,moisture Excellent adhesion to PPO,PET,PVDF and other materials Non-corrosive to copper, aluminium, tin ,silver and many other materials FV-0 class fire resistance capability Excellent thermal conductivity

Colours
GUIBAO 4808 part A is available in white or black fluid, and part B in clear or shallow yellow liquid. It is white or black fluid after mixing.

Packaging
GB4808 is available in kits: Part A in plastic pails (12kg), part B in plastic pails (2kg); or Part A in plastic pails (3kg), part B in plastic cartridges (300ml, 0.5kg).

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These values are not intended for use in preparing specifications.

Test Method		Property	Unit		Result
As supplied
/	Appearance			Part A: white fluid Part B: shallow yellow liquid
GB/T 2794	Viscosity as mixed at 25 ℃			mPa•s		2500~5500
GB/T 13477	Density			g/m³		1.36~1.42
/	Working time			min.		≤30
/	Curing time			h		≤24
Cured after 7 days at 23±2℃，RH 50±5%
GB/T 531.1		Hardness		Shore A		35~50
GB/T 528		Tensile strength		MPa		≥1.0
GB/T 1692		Volume resistivity		Ω·cm		≥1×10^14
GB/T 1695		Dielectric breakdown strength		kV/mm		≥18
GB/T 1693		Dielectric constant（1MHz）				≤3.5
ISO 22007-2		Thermal conductivity		W/m·K		≥0.4

*GB: Chinese National Standard
ASTM: American Society for Testing and Materials
ISO: International Standardization Organization

Complete technical information and literature, adhesion testing and compatibility testing are available from GUIBAO.

Mix part A base to Part B curing agent at a ratio of 6:1 by weight or 4:1 by volume, and then pot the mixture into the parts of substrates where needed, place at room temperature for initial curing for about 2～4 hours before conducting the next procedure. If precipitation occurs in Part A, just stir it well before use, and this does not affect the performance of the sealant.

When using automatic dispensing machine, set at a ratio of 6:1 by weight or 4:1 by volume of part A to Part B for a test first and then put into use.

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