STAR POLYPRECAUTIONS
Pay more attention to the usage of
acrylic sheets
Temperature: Acrylic sheets are softened with
heating at 100 Centigrade or over. To prevent from becoming
soft, please keep units beyond the place over 100 Centigrade.
Scratch: The hardness of surface is equivalent
to aluminum, thus be careful to surface protection during
process.
If there are scratches on the surface of acrylic sheets, polish
them with cleaner used for brass that can remove its brilliant
surface.
Cleaning: Due to acrylic sheet with static
electricity, clean the surface with soft and dry cloth wetted 1%
soap water when there are dust on the
surface.
Swell: The coefficient of heat is larger and
its tension is about nine times of other metal materials. Remain
enough space for its contractility to variable temperature while
you install and fix acrylic sheets
steady.
Special Instruction Under Installation
1.Reserve enough space for contractility, the elasticity of cast
acrylic sheet per meter is as following, according to the
temperature.
(A) After finishing processed acrylic novelties at 10
Centigrade, the temperature raises to 50 Centigrade 1000 x 6 x
105 x (50-10) = 2.4m/m (elongation) (B) After finishing
processed acrylic novelties at 10 Centigrade, the temperature
falls to -10 Centigrade 1000 x 6 x 105 x (30+10) = 2.4m/m
(shrinkage) You can consult general settlements to prevent from
Troubles as following:
Reserve the frame
for contractility Making ellipical hole with screw
Cushion material as elastic as rubber Making acrylic novelties
into unprominent shape. Using form to increase the
cross-sectional coefficient
avoiding interior stress.
2.Prevent Transformation
Forming acrylic sheets into wave, wrap and through to increase
cross-sectional coefficient in order to prevent trans formation
from the weight of acrylic sheet itself and lasing.
Increasing thickness of acrylic sheet as larger length and
dimension. Counting thickness, tension tolerance and bending
strength of acrylic sheet to endure wind pressure on the
surface.