Description
THE TECHNIQUE STANDARD (NORM)
FOR GYPSUM BOARD PAPER
1．weight and
width
We can make the
paper weight from **0gsm/mt2 to **0gsm/mt2. Par t of weight and
width of our productions are as follows.
1.> For
**0gsm / mt2
The width of the
face paper is ********0, in grey or brown color.
The Width of the
back paper is ********0
2>.For
**0gsm/mt2
The
width of the back paper is ********0, in white color’
3> For
**0gsm/mt2
The
width of paper is ********0, in grey, in brown or white
color
2．thickness
–
0.***0.*6mm
3．ventilate
-≥1.3 um/pa.s
4．water absorbtion
- the front
side of paper ****5g/m
the behind of
paper ****0g/m
5．The tensil
strength
For Grade
AAA
1>The
face paperi
a> longitude
tensil strength – 9.3
b> b>horizontal
tensil strength *3.3
2>The back paper
a> longitude
tensil strength – *0
b> b>horizontal
tensil strength – 3.3
For Grade
AA
1>The
face paperi
a> longitude
tensil strength – 7.3
b> b>horizontal
tensil strength – 3.2
2>The back paper
a>longitude
tensil strength – 8.6
b>horizontal
tensil strength *3.0
For Grade
A
1>The
face paperi
a> longitude
tensil strength –6.6
b> b>horizontal
tensil strength –2.3
2>The
back paper
a>longitude
tensil strength – 6.6
b>horizontal
tensil strength – 2.3
7．horizontal swell in
mositure -≤2.5 %
For
grade AAA ≤2.5%
For
grade AA ≤2.8%
For
grade AA ≤3%
8．water
content-
***3%
