Advantages of new rock wool sandwich panel:

1. Excellent fireproof performance: the raw materials, production process and formula of polyurethane double-sided sealed rock wool sandwich board make it have good fireproof performance. The test shows that it has a fire resistance of more than 1000 ℃. Polyurethane double-sided sealed rock wool sandwich board has passed the test of gioroano S.p.A, an Italian authoritative testing organization. The rock wool sandwich board meets the requirements of fire protection standards M.I. 14 / 09 / 61 letter 91 and D.M. 30 / 11 / 83. The test results are as follows: 50mm thick polyurethane double side sealed rock wool sandwich panel REI 30, 80mm thick polyurethane double side sealed rock wool sandwich panel REI 60100mm thick polyurethane double side sealed rock wool sandwich panel REI 120.

2. Good thermal insulation: the thermal insulation of polyurethane double-sided sealed rock wool sandwich board is based on the thermal conductivity of rock wool= Based on 0.043 w / m2 K and the thickness of rock wool core material in corresponding proportion.

3. Remarkable sound insulation and absorption effect: Polyurethane double-sided sealed rock wool sandwich board can significantly reduce the noise transmission, especially suitable for places with designated flights. In addition, after the rock wool roof panel is adopted, the indoor sound caused by the impact of rainwater and hail on the roof steel plate of the building is also significantly weakened. Through the test, according to the standards of ISO 717 / 82 and uni 8270 / 7, the sandwich board with the density of 120kg / m3 rock wool as the core material can achieve the sound insulation effect of RW = 29 ~ 30 dB.

Rock wool sandwich board has good sound absorption effect at the same time. It can absorb sound in a wide frequency range. According to ISO 354 / 85 standard, the sound absorption performance level of rock wool sandwich panel reaches delta La = 15.7 dB (a).

Polyurethane double side sealed rock wool sandwich panel gives full play to the unique properties of rock wool core material and has remarkable effects in fire prevention, thermal insulation, sound absorption and sound insulation; At the same time, it retains the advantages of polyurethane plasticity, airtightness, high strength and non water absorption. The advent of this material is a revolutionary change in construction engineering, which fully integrates the advantages of polyurethane and rock wool, and discards the shortcomings of traditional plates. In a sense, polyurethane double side sealed rock wool sandwich board can not be compared with ordinary rock wool sandwich board.