The exterior of the security guard coffee is entirely made of fully transparent acrylic, with a total weight of 9.2 tons. It is composed of 87 irregular acrylic sheets spliced together. The maximum size of a single piece is 2750 * 1497mm. The whole body adopts seamless splicing technology, which is complete and transparent. It requires UV resistance, yellowing resistance, processing performance, hardness, impact resistance, and weather resistance.

In the transparent coffee shop, eye-catching doors, uniquely shaped tabletop decorations, exquisite coffee coasters, transparent rotating wine racks, over 85% of decorative materials are made of acrylic sheets and products provided by the All Glass Era.

Acrylic is a plastic polymer material. When selecting materials, it is necessary to choose acrylic sheets that are brand new and have relevant performance parameters that meet the requirements of the national standard GB/T 7134-2008. Otherwise, some performance and weather resistance cannot be guaranteed. Under normal usage conditions, the fading is not significant within three years (except for specially designated indoor color boards). The performance parameters of the new acrylic material are shown in the following table:

• Performance Project
  Technical Parameter
  Notes
• Thickness tolerance/mm
  +0.5
  4-5mm
• Tensile strength/Mpa
  ≥70
• Tensile modulus of elasticity/Mpa
  ≥31001
• Rockwell hardness/M scale
  ≥98
• vicat/C
  ≥105
• Flame retardant grade
  B2-E
• Elongation at break/%
  ≥4
• After 10 years of use, the transmittance decreases/%
  ≤10
  Completed 10000 hours of rapid aging test, equivalent to 20 years outdoors