Besil 322 silicone potting material – Shanghai Beginor Chemical Technology Co., Ltd.

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Besil 322 Two compound condensation type fast curing silicone structure adhesive

Dealcohol type fast curing at room temperature
Paste, does not flow
Two-component volume ratio: 2:1
Allow large mixing error
Good resistance to cold and heat.
Good adhesion to most substrates
Excellent electrical insulation
Meet ROHS, halogen-free, REACH certification

Features

RTV Besil322 Condensation type silicone adhesive rubber is a two-component condensation type room temperature vulcanized silicone rubber. Fast curing at room temperature, Ethanol small molecule release, no corrosion of the material.

Data Sheet

Properties before curing
Part A
Appearance	Black sticky
Base	Polysiloxane
Density g/cm3	1.33
Extrusion rate*0.4 MPa	32g
Part B
Appearance	white paste
Base	Polysiloxane
Density g/cm3	1.45
Extrusion rate*0.4 MPa	34g
Mix Properties
Appearance	Black paste
Volume ratio	A:B=2 : 1
Drying time min	10～15
Initial molding time mins	30-40
Complete hardening time, h	24
Properties of after curing for 3 days
Tensile strength MPa	2.0
Shear strength MPa	1.7/ Fe 0.8/PC/Glass
Elongation at break %	220
Hardness Shore-A	35
Volume resistivity Ω.cm	2.0×1015
Operating temperature ℃	-60～200
Peeling test: on clean polycarbonate, curing at 23℃	24 hours
Bonding cohesion damage , %	100

Application

Microwave ovens, induction cookers, electric kettles and other household appliances
Photovoltaic modules and junction boxes
Car lights, skylights, interior parts
High efficiency air filter

How to use

Use:

1) When it needs to be attached to the application material, please confirm whether the adhesion can meet the requirements before applying.
surface cleaning. Use alcohol or acetone and other solvents for removing grease and dust removal before use.
When using, the volume ratio of A and B components is 2:1. The fluctuation range can be between 10:4 and 10:6, and the mixing must be sufficient.
The higher the temperature, the shorter the surface drying and curing time, For the dispenser operation, pause time is as short as possible to prevent the glue from clogging the glue line.
The curing time setting of the two-component dispensing machine must be within 5mins; Please do not remove the mixing tube when the interval is longer, and the new mixing tube should be removed and installed before the next use, which can effectively avoid the phenomenon of solidification of B component.
long exposure to the air will cause the effective component to fail, Seal the opened packages A and B to avoid affecting the performance of the adhesive.