Storage and usage of solder paste

Solder paste (solder paste) is a commonly used material in the electronic assembly process, and its storage and use methods are critical to ensuring solder quality and performance. The following are the detailed storage and usage methods:

Storage method: it should be put into the refrigerator for storage as soon as possible after receipt, and the recommended storage temperature is 0~10℃. High temperature will shorten its service life accordingly and affect its characteristics; unopened solder paste is valid for 4~6 months under normal sealed storage conditions at 0~10℃, syringe solder paste is recommended to be stored in a frozen environment at -20~0℃ for better stability of the solder paste, and epoxy solder paste (solder adhesive) products should be stored at -20+/-5℃; solder pastes of different types, batch numbers and manufacturers should be stored separately; The solder paste should follow the principle of first-in-first-out; when stored, it should be kept sealed to avoid moisture and oxidation; storage containers: the solder paste should be stored in sealed form to avoid external pollution and oxidation. During storage, the packaging of solder paste should be kept intact as much as possible.

Usage: The solder paste should be stored in the refrigerator after purchase, and should follow the principle of first-in-first-out. Before use, the solder paste should be placed at room temperature to warm up, the time is about 2 to 4 hours, after warming before use need to be fully stirred, stirring time is generally 3 to 5 minutes; solder paste purchased, need to be affixed with the purchase date to distinguish between different batches. According to the SMT chip processing orders need to control the use of solder paste cycle, the inventory is generally controlled within 30 days. The solder paste should be stored separately according to different types, batch numbers and different manufacturers.

Solder paste should be stored in sealed form to prevent it from being exposed to air leading to volatilisation of the active substance. Avoid direct sunlight: Solder pastes should not be placed in sunlight to avoid efficient volatilisation of their active substances. During the solder paste handling process, it is important to achieve safety stock to ensure that the solder paste is used up within its expiry date.

By following the above precautions, you can ensure that the solder paste maintains its stable performance during storage and provides reliable protection for soldering work.

Of course, if you have any questions or need further information about the storage and use of solder paste or other products and services related to Fitech, welcome to visit Fitech official website!