GRG Material properties
one Strong plasticity and rich shapes: GRG The product is pre cast by special process lamination on the mold Gypsum Products. It can meet the randomness of shape and mechanism. The product can customize various geometric shapes, hollow patterns, relief patterns, etc. of single curved surface, hyperboloid, three-dimensional overlay, which can completely meet the individual requirements of designers. It not only has high hardness but also has good flexibility. It can be made into various sizes, shapes and design shapes. It is easy to use and can be used in complex suspended ceilings Wall decoration Medium. Architect use GRG The product can make the interior surface of the building reach the required design effect.
two Rich choice of surface course. GRG The material surface is fine and smooth. Whiteness can reach 90% The above can be combined with various coating And various finishing materials（ veneer Fabrics) are well bonded to form decorative effects of different styles.
three High strength and impact resistance. Experiments show that GRG The breaking load of the product is greater than 1200N , exceeding the national standard JC ／ T799-1988 （ one thousand nine hundred and ninety-six ）Decoration plasterboard Breaking load 118N Of ten Times.
Bending strength: 10-20MPa ASTMD790-2003 Test method.
Tensile strength: 10-15MPa ASTMD790-2003 Test method.
Impact strength: 30-35KJ/m2 ASTMD790-2003 Test method.
four 、 Stable quality. GRG The material is not deformed or cracked, and the thermal expansion coefficient of the main material gypsum is low. Dry and wet shrinkage is less than 0.01% ， one hundred and twenty Store at high temperature seventy-two Hour, the variable rate is only 0.07% 。 The product is also not affected by cold, hot, dry and wet changes in the environment, with stable performance and no deformation. The product does not deform, and the expansion coefficient is very small. The unique fabric processing technology also makes the product not crack and has a long service life.
five High density and light weight. The standard product thickness is three point two to 8.8mm (Thickening is allowed for special requirements), The weight per square meter is only four point nine to 9.8kg ， If there are acoustic requirements, the back of the product can be grouted and thickened as required (the thickness is 40mm When the acoustic effect is better). It can reduce the weight of the main building and the load of components while meeting the requirements of large plate ceiling segmentation. The thickness and weight can be changed to meet the acoustic requirements. The grouting density is low up to 650kg / cubic metre.
six Fire resistance and flame retardancy. GRG Material belongs to A Grade I fireproof material can not only retard fire, but also release its own weight in case of fire 15% to 20% It can greatly reduce the temperature of the fire surface and reduce the fire loss.
seven Strong moisture resistance. GRG The material is inorganic material, which has the functions of mould proof, moth proof and anti-static. The test results prove that the water absorption of the product is only zero point three %, so GRG The product can be used in humid environment without mildew and yellowing.
eight Good acoustic effect. GRG The material has good acoustic reflection performance. The test shows that: 4mm Thick GRG Material, transmission loss 500Hz23db 、 100Hz27db ； Air dry specific gravity one point seven five , meeting professional acoustic reflection requirements. Through good modeling design, a sound absorption structure can be formed to achieve sound insulation and absorption.
nine Green and environmental protection. GRG The material is free of any odor, chemical resin or radioactive harmful substances, and the limit of radionuclides meets GB6566-2001 Specified in A Standard for Class A decorative materials. high standard Material of natural inorganic minerals, far infrared radiation rate zero point eight eight about. It can be renewed and used, and is a green environmental protection material.
ten Short processing cycle. GRG The product demoulding time only needs thirty ～ one hundred and twenty Minutes, drying time only four ～ eight Therefore, the construction period can be greatly shortened.
eleven Convenient construction and low loss. GRG The product can be accurately divided according to the designer, All products are prefabricated in the factory ， No need for on-site secondary processing 。 Embedded parts shall be used for installation. Good field processing performance, rapid and flexible installation, large area seamless and tight assembly, forming a complete shape. Especially for the details of openings, arcs, corners, etc., it can ensure that there is no error.
