1. Preservation method
The storage of the solder paste should be controlled at 1-10℃; the service life of the solder paste is 6 months (unopened); it should not be placed in the sun.
2. How to use (before opening)
The temperature of the solder paste must be raised to the ambient temperature (25±2°C) before opening, and the temperature recovery time is about 3-4 hours. It is forbidden to use other heaters to make the temperature rise instantaneously; fully stir after returning to the temperature. The mixing time of the mixer is 1-3 minutes, depending on the type of mixer.
3. How to use (after opening)
1) Add about 2/3 of the solder paste to the stencil, and try to keep the amount not more than 1 can on the stencil.
2) Depending on the production speed, the amount of solder paste on the stencil should be added in small amounts and multiple times to maintain the quality of the solder paste.
3) Solder paste that has not been used up that day should not be placed together with unused solder paste, and should be stored in another container. It is recommended that the solder paste be used up within 24 hours at room temperature after opening.
4) When using the next day, you should first use the newly opened solder paste, and mix the unused solder paste the previous day with the new solder paste in a ratio of 1:2, and add it in a small amount for multiple times.
5) After the solder paste is printed on the substrate, it is recommended to place the parts into the reflow furnace within 4-6 hours to complete the dressing.
6) Please scrape the solder paste from the steel plate and put it into the solder paste tank before changing the wire for more than 1 hour.
7) After the solder paste is continuously printed for 24 hours, due to air dust and other pollution, in order to ensure the product quality, please follow the "step 4)" method.
8) To ensure printing quality, it is recommended to manually wipe the openings on both sides of the steel plate every 4 hours.
9) Please control the indoor temperature with 22-28℃, humidity RH30-60% is the best working environment.
10) To wipe off the wrongly printed substrate, it is recommended to use industrial alcohol or industrial cleaning agent
