Security door special sandwich board

High fire rating Hard core board door Long service life Sound insulation effect is good

1.FeaturePerlite fire door core is consisting of expanded perlite and inorganic glue. With the chatacters of light(kow bulk density), high hydrophobe rate , high strength, low thermal conductivity and easy-to use, Hydrophobel perlite board/ tiles are widely used in roof, wall, barns  as core of wooden fire door and steel fire door.

2. Main performance

1) Thermal conductivity: 0.03 ~ 0.076 W/(m.k)   

2) Temperature-resistance : 1300 () 3) Compressive strength: 0.35-0.8(Mpa)                 

3) Sound-absorption coefficient: 0.03-0.84) Density: 200 ~ 300 (kg/m3)                        

5) Wet expansion rate(% )≤0.25

6) Wet expansion rate(%) ≤0.25                         

7) Anti- bend intensity ≥8Mpa