How to vacuum liquid silica gel?First of all, why should liquid silica gel be vacuumized?What is the purpose of vacuuming?

  Liquid silica gel is generally composed of two component materials, A component is silica gel, B component is curing agent, both in accordance with A certain proportion of the stir evenly before curing.Liquid silica gel itself contains a certain viscosity, the viscosity of silica gel can generally reach about 20,000 to 30,000, the viscosity of small silica gel also have about 2-3 thousand, but whether the viscosity is large or small, as long as the liquid silica gel two components will produce bubbles.

  Many people will think it's going to since the foam liquid silicone, actually otherwise, so-called the defoaming through the lower the viscosity of silica gel, silica gel extended the operating time, let the liquid silica gel inside the bubble have enough time to align bubbles come out, but if you want to achieve one hundred percent of the bubble clean, it must be with vacuum machine equipment through the air bubbles out external mechanical forces, So how to vacuum liquid silica gel?

  The use of vacuum machine exhaust bubble first to choose the appropriate power size of the vacuum machine, because each customer a single time of foaming silicone glue is not the same, how much.Under normal circumstances is to choose 2-3 kilowatt power size on the exercise.The container for silica gel must be large, and the silica gel must be filled only one-third of the container each time, leaving enough space for the silica gel bubbles to rise slowly and drain out.When the pressure pointer of the empty box is below -0.1mpa, it means that the bubbles in the silica gel are almost clean.When vacuuming, observe and repeatedly pump several times. The total vacuuming time is almost 2 minutes or so.

  After vacuum pumping, the silica gel can begin to pour directly into the mold frame, so that after the solidification of the silica gel pumped by the vacuum machine, there are no pores inside and outside the mold, the solidification is quite tight, and the service life of the mold is quite long.

  The original liquid silicone vacuum has so many benefits, you also come to try it.