STC=39dB 120kg high standard and density noise reduction door sound proof door with German door acce

With reference to acoustic Mass law, G45 is a composite of different materials with different properties. When treated with special vibration resisting and damping structure, G45 reduces the opportunity of acoustic superposition which prevents substantial resonance, improving the sound it is able to insulate(STC).G45 is designed to adopt the unbalanced acoustic structure, filling with inflammable high dense micro-pore fibre acoustic material. Though this door is only in thickness of 45mm, G45 functions excellently in insulating sound from 250 to 5000 Hz

only one slot is designed on each edge of the door frame, this door is coordinated with OFF seal– patented inflammable one. Moreover, without a door sill, an automatic lifting sealing device is hidden at the bottom, G45 effectively controls sound leakage through the gap.

Eco-Friendly: - Zero Formaldehyde emission, Up to E0 standard
Flame retardant: Grade B (Tested by SGS)
Sound Insulation Indicator: STC35-40dB(A); Up to Grade III standard
German automatic closing hinge enables the door serves no less than 120,000 times.