www.ustar-duplexboard.com

U&STAR, YOUR PAPER&PAPERBOARD EXPERT

U&STAR INDUSTRY CO.,LIMITED

STANDARD TYPE

GREY BOARD

MAIN TECHNICAL INDEX

技术指标

Technical Index

单 位

Unite

规定合格品

Standard Quality

定 量

(Base Weight)

g/㎡ 300--3000

定量偏差

(Base Weight More or Less)

% ≤ -5, ≤+3

规格偏差

Size More or Less

% ≤ ±3

含水率

（Water Content）

% 7, 2% more or less

层间结合力

(Binding Force Between Layers )

J/㎡ ≥120

厚 度

(Thickness)

100gsm/mm

0.165-0.167(for un-laminated,A grade/

laminated type grey board,AA grade)0.158-0.162

(for all grey board type,AAA grade)Customized

尘埃度

(Dirty Count)

dot 3mm, ㎡≤12

Remark:

1.Water abortion index should be adjusted according to different areas, temperature and weather;

2.Above technical date is just for reference , please confirm the quality by samples and final goods;

3.We also have the ability to follow client’s special quality requirement,like gsm/thickness ratio,watercontent,surface craft(like smooth surface,white/nominated surface color,round corner,small size than 640mm) etc,

we will confirm our our production department, and offer your special grey board solution plan,thank you.