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At the same time, air permeates into the interior of the cell through the cell membrane, so that the pressure in the cell is balanced with the external pressure. This will make the beads after the pre-expansion elastic. During the ripening storage process, the foaming agent also diffuses outward at the same time, so the shelf life of the beads after the pre-expansion cannot be too long.
A-grade fireproof EPS insulation board continues the traditional EPS foam board with small thermal conductivity and large heat storage coefficient. It is better than the inorganic thermal insulation mortar and foam glass on the market.
The temperature of one atmospheric pressure is close to the softening point of polystyrene (100 ℃) – the speed of steam entering into EPS beads is faster than that of foaming agent diffusing EPS beads
EPS line production technology is, is controlled and cut by computer, so its production speed will be faster, and the error is small, it can be said that there is no error, the design of models, styles, colors, rich people's choice. Its style has lines, window cover, Dougong, Roman column, etc., which can play a good decorative effect on eaves, door and wall.
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