After being unsealed, the solder pastes should be completely used under a room temperature within 24 hours.

锡膏开封后在室温下建议于24小时内用完。

youdao

All of the three solder pastes could form plump and splendid solder point, and the appearance of Sn-Pb solder point was more regular and sleek.

三种焊锡膏均可形成饱满、光亮的焊点，锡铅焊点外观比无铅焊点更规整圆滑。

youdao

B. The mechanical mixing usually last 1 to 3 minutes, while manual mixing usually lasts 3 to 6 minutes (The longer time the solder pastes are kept, the longer time the mixing requires).

机器搅拌一般为1~3分钟，人工搅拌一般为3~6分钟（锡膏储存的时间越长，则搅拌时间越长）。

youdao

The factory s other equipment, including a machine that pastes solder and another that dispenses glue, can make a product within 24 hours of getting the plans.

FORBES: Made In Silicon Valley