Drywall Screws

Scope of application: bedroom, homeïshopïsupermarket schools, hospitals and other ceiling and drywall.
Features: green environmental protection, convenient construction, space saving, comfortable living.
Convenient construction
Gypsum board with performance can be nailed, planed, sawing, sticky, for the city decoration, can obtain the ideal decoration, only a paper knife can be cut on gypsum board, the construction is convenient, use it as a decoration materials to improve the construction efficiency can be greatly.
Save space
The gypsum board wall materials, can save the wall area, increase the space utilization rate. Gypsum board for interior wall is also convenient for indoor pipeline laying and maintenance.
A comfortable living
Gypsum board with large porosity and pore distribution, high permeability. When the indoor humidity is high, which can absorb moisture, and when the air is dry, but also released a part of the water, and thus to regulate the indoor humidity, it is because of gypsum board has unique "breathing" function, can adjust indoor humidity in a certain range, so that the living conditions more comfortable.
Specificationï.
Common sizes
(length*width)
1200mmã?2400mm, 1220mmã?2440mm (4ft*8ft), 1200mmã?3000mm
Type
Standard gypsum boardïfireproof gypsum boardïwaterproof gypsum board
Other sizes
(length*width)
1200mmã?2000mm, 1200mmã?2500mm, 1200mmã?2700
Thickness
7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm, 10mm, 12mm, 12.5mm, 15.9mm.
Edge
Tapered edge / standard (square) edge
Packing
Every two pieces face to face are packed with sealing paper.
Moq
One 20ft containers / two 20ft containers for special (uncommon) size

WELLYOUNG Gypsum Acoustics-perforated gypsum board

WELLYOUNG acoustic perforated gypsum board is designed on the basis of helholtz resonance theorem, After perforated, the holes, board and the wall make up of many resonant cavities, when air molecules pass the holes, the resonant cavities will consume large quantities of sound energy.

WELLYOUNG perforated gypsum board is one of the best sound absorption products, it ie widely used in Auditorium, office, cinema, church, hospital. School and so on.

SPECIFICATIONS
Surface Treatment plain paper;pvc lamination;latex painted
Backside Acoustic non-woven cloth, white or black color
Thickness 12mm
Size 1200x2400mm
Edge Square
Size of Round hole
6mm, 8mm, 10mm, 12mm, 15mm available

Size of Square hole
5*5mm, 10*10mm, 12*12mm available

Size of Cross hole
6mm /10mm, 8mm / 12mm

Size of Irregular hole
8/15/20mm, 12/20/35mm available

Size of Micro hole
3*3mm square hole, 3mm round hole

Other perforation variants
Rectangle hole, Long round hole, Cellular hole (honeycomb hole)
Perforation Patterns H1, H2, H2L, H4, H4L, H6, H8
Perforation Rate 6.8%-19.6%
Sound Absorption aw 0.65
NRC 0.70
Climate (RH) 70
Density 9.4 Kg/m2
K-Value 0.1w/m k
Applications
Suspending ceiling, wall partition
Other installation Materials
Multipurpose Interior Putty,Jointing Compound,Drywall Screw,Paper Tape,Glass Fiber Mesh. (we also offer these products)

Main Features
1) Acoustic perforated gypsum board
2) Light weight in unit acreage
3) High edge rigidity
4) Strong nail pull resistance
5) Smoothness
6) Green products

Applications:
Finishes applied to plasterboard surfaces can have a significant effect on the perceived quality of the installation, particularly where critical lighting conditions exist.
Textured or heavy patterned finishes tend to hide imperfections
Matt finishes minimize imperfection visibility
Semi-gloss and gloss finishes highlight imperfections
Light colours are less likely to show imperfections and impact damage

Gypsum is a soft sulfate mineral composed of calcium sulfate dehydrate, with the chemical formula CaSO. 4· 2H2O Gypsum is widely used in construction because of its ability to hold nails, screws and other small parts. Some gypsum products are used to make drywall, plaster foundation and facing materials, concrete and stucco.

Chemical Specifications:
CaSO. 4· 2H2O 95-98%