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GRG(Glass Fiber Reinforced Gypsum),in Chinese  is called 特殊玻璃纤维增强石膏板。It is a precast and new type of decoration material made from top quality improved natural gypsum as base material, adding special gypsum reinforced glass fiber and environmental trace additives. This kind of material can be made into all kinds of flat panels, various functional products and various kinds of artistic modeling.  GRG is now the most popular upgrading products for international building decoration materials industry and mainly used for high standard buildings in architectural acoustics and architectural aesthetics, such as theaters, concert halls.  As a kind of excellent new interior decoration material, GRG unifies acoustic and aesthetic perfectly.


GRG Varieties:


GRG Features and Advantages:
As a new type of  decoration material, it has the following ten advantages and features:
1、Good plasticity: as GRG production mode is first doing mold, then fluid pre-cast to any shape according to product drawings transferred from architectural plan, it can realize designer dreams perfectly.  Its good plasticity makes any shape modelling of buildings realizable and its 200-year service life quality casts eternal art.
No deformation:  GRG product guarantees stable performance, durable, no crack, no deformation and long service life as there is no corrosion effect from main material gypsum to glass fiber and its wet and dry shrinkage rate is less than 0.01%.

2、Light Weight: GRG products can reduce weight and component load for main building as its flat part thickness is 3.2 to 8.8 mm (can be thicken with special requirements), with each square meter weighing only 4.9 to 9.8 kg.
 
3、High Intensity: Experiments showed that fracture load of GRG products is greater than 1200N, 10 times exceeding the fracture load 118 N of decoration gypsum board, according to international standard JC/T799-1998 (1996)

4、Breathing: GRG panel has a large number of porous structures, and in the natural environment, the porous body can absorb or release the moisture. When higher temperature and lower humidity indoor, the panel will release the moisture in porous structures gradually; when lower indoor temperature and higher humidity, the panel will absorb the moisture in the air. The releasing and absorbing is formed the so-called "breathing" effect, which regulates the indoor relative humidity and create a comfortable environment for working and living.

5、Fireproof: GRG material belongs to A level fireproof materials.  When the fire breaks out, it is not only flame retardant itself, but also can release water 15% to 20% of its weight to lower the burning surface temperature significantly and reduce fire loss.

6、Environment-friendly: GRG has no smell and belongs to A level decoration material with its radionuclide limit in conformity with standard in GB6566-2001. It can be recycled and is green environmental protection material.

7、Good Acoustic Effect: Tests showed: 4 mm thick GRG material, penetrate loss 500Hz 23d、100Hz 27d; Specific gravity in air dry 1.75, conform to the requirements of the professional acoustic reflection. Through appearance design, GRG can constitute good sound absorption structure and realize better sound insulation and absorbing effect.

8、Short Process-cycle:  It will only take 30 minutes for GRG products to mold off and 4 hours to dry, which can largely shorten the construction period.

9、 Convenient for Construction: GRG can be produced and cut in large pieces with arbitrary shapes according to the designer's design. With Good on-site processing performance, fast and flexible installation, GRG can be matched seamlessly into large size and form a complete artistic shape. It can ensure no error especially at the points of the mouth of the cave, arc, turning angle and other subtleties.


10、Smooth and Exquisite Surface: With Whiteness more than 85%, GRG can bond well with all kinds of coating and surface decoration materials to form an excellent decorative effect.



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