5351 is heat curing silicone sealant. Mainly applicable to the
package of the blue chip and UV chip
5351:LED Potting sealant.
5351 is a two-component,, high transparency, heat curing silicone
sealant. Mainly applicable to the package of the blue chip and UV
chip. With high transmittance, no yellowing, good operability,
strong adhesion and so on. By 5351 the encapsulated LED lamp has a
light, light a small decline rate is high, etc.. Product is a
mixture of modified poly two methyl silicone, in line with the EU
ROHS environmental protection requirements.
For SMD, COB, high power, multi chip LED potting
Characteristic before curing
Appearance (A component) colorless, transparent, liquid
Appearance (B component) colorless, transparent, liquid
The main chemical components (A, B component) modified poly two
A, B component density (25 degrees C) 1.03g/cm3
A component viscosity (25 degrees C) 4500cp
B component viscosity (25 degrees C) 7000cp
1:1 mixed viscosity (25 degrees C) 5000cp T.I.=1, ~ 1.5
Characteristic after curing
Curing type heat curing
Refractive index 25, 1.41
Transmittance >96%, 400nm, thickness 1mm
After aging, the transmittance of >96%, 400nm, thickness 1mm
Tensile strength 7Mpa
Shear strength (al - al) 3Mpa
Shear strength (al PET) 1Mpa
Hardness A shore 70
Mixing process: the A, B group divided according to weight ratio
1:1 accurately weighed, adding fluorescent powder and manual
stirring, vacuum pumping, repeated several times to ensure uniform
mixing. No bubble, recommended by vacuum mixer.
Sizing: by dispensing the 5351 injection.
Curing: recommended curing conditions 80 /0.5 hours +150 hours /2
hours; optional 150 degrees /3 hours.
Storage: before mixing the A, B components to room temperature, to
avoid light, sealed to save. Please use the finished in 8 hours
Oral administration is strictly prohibited.
If skin touched, please immediately after wiping cloth class, with
water or alcohol cleaning
If you accidentally contact with the eyes, rinse immediately with
plenty of water, and quickly for medical treatment.
Please refer to the product's safety information MSDS.
Each group of A, B group of each bottle, 500 g/bottle, 2group/box
Store in a cool, dry place at room temperature for 12 months