For High frequency filter Dip coating SF3400

///For High frequency filter Dip coating SF3400

For High frequency filter Dip coating SF3400

SF-3400 is a high-performance sintered dip coating slurry, suitable for the metallization of the filter surface.



After dip coating and centrifugation, the surface is smooth,

the film thickness is high in a single operation,

No accumulation at the edges and corners of the hole bottom,

No skin is sintered

Good conductivity and low insertion loss

The silver layer with high tensile strength,

good solderability and solder resistance.

Model No. SF-3400
Solid content(wt%) 80±2
Curing process 150℃/5~10min
Firing process
(Advice: 830℃/15min)
Electrical conductivity(×106 S/m) ≥40
Binding force(kgf/mm2) ≥3.0
300℃/3s ,
Tin Coated area≥90%
Cleaner Ethanol, ethyl acetate, butyl acetate
According to the requirements of dipping process

1. It is recommended to control the ambient temperature at 20~25℃ and humidity at 50~60% during use;

2. Use the silver paste within 24 hours after opening. The unused silver paste must not be left open, and the inner and outer covers should be covered and sealed. Storage;

3. Recycle the silver paste to adjust the viscosity, and a special thinner is required;
4. When the silver paste is taken out of the refrigerated state for use, please first put the silver paste at the operating temperature (generally 20℃~25℃). Balance, balance time ≥ 4h, special attention: Do not open the silver paste packaging cover during the balance process, and keep the silver paste packaging tank in a sealed state. After the temperature is balanced, please open the lid and stir evenly;
5. The working environment should not contain corrosive gases such as sulfide and chloride;
6. The operator must wear masks, hats, gloves, etc., and do not use sulfide The labor protection supplies;
7. If it touches the skin, it should be washed with water and soap in time



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