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The perforated gypsum board with a porous structure has many small gaps or continuous bubbles, so it has a certain ventilation. The board, itself has a good ability of medium-high frequency absorption, and the air layer when having on backside can absorb low frequencies.

 

 

 

 

 

 

 

 

Properties
 
   1 built-in fibers, increasing the physical properties of gypsum board perforation
   2 fiberglass components - Fireproof
   3 Density 9kg/m2, high-density reinforced plate
   4 silicone oil treatment - damp
proof
   5 charcoal substances - formaldehyde adsorption
 
 
 
 
Surface treatment:

-Fill the space on the nail head with putty, and avoid the putty falls into the holes
.
-There may be some incomplete holes on the junction of ceiling edge and the wall or other ceilings, and then fill them
with putty.
-When putty is dry, use foam rubber roller dipping the primer to brush the entire surface which can balance the surface tension of seams and panels
.
-Use the foam rubber roller to paint the surface.
 

 
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