TECHBARRIER™

Gelbo-flex Property

Gelbo-flex test is one of the durability indication against fabricating process, transportation and handling. Please find test data comprising some comparison with aluminum foil and aluminum metallized film on “Gas Permeability after Gelbo-flex Test”. For your reference, test results of Gelbo-flex depend on equipment and condition sensitively.

  •  1.TECHBARRIER™ has superior Gelbo-flex durability compared with aluminum foil and aluminum metallized film.
  •  2.TECHBARRIER™-S especially has superior durability due to its base film, OPVA. We recommend it when toughness is required.
  •  3.TECHBARRIER™-HX, AX, LX, L, T, TX and VX have almost same durability each other.

Gas Permeability after Gelbo-flex Test

Test Condition

Gelbo-flex Tester (product of Tester Industries corp.)

  • Stroke : 40 cycle/min
  • Twisting : 440
  • Horizontal movement : 2.5 inch
  • Atmosphere : 23°C, 50%RH
Gas Barrier Water Vapor Transmission Rate
(g/㎡/day)		 Oxygen Transmission Rate
(cc/㎡/day/atm)		 Base Film
Before After
(10 times Gelbo-flex)		 Before After
(10 times Gelbo-flex)

Structure

 T 0.3 1.0 0.3 10.0 OPET
NY 0.7 2.0 0.5 10.0 OPA
NR 0.7 2.0 0.5 10.0 OPA
S 0.1 0.3 < 0.1 0.3 OPVA
AL-Metallized OPET 0.5 3.0 1.2 10.0 -
AL foil 0.1 0.2 < 0.1 20.0 -

The above data is just a test result, but not guaranteed.
Data as laminated film.

  • Structure :

    OPET(12㎛) // (SiOx) T(12㎛) // CPP(50㎛)
    NY(15㎛) (SiOx) // LLDPE(50㎛)
    OPET(12㎛) // (SiOx) NR(15㎛) // CPP(50㎛)
    OPP(20㎛) // (SiOx) S(12㎛) // CPP(50㎛)
    AL-Metallized OPET(12㎛) (Met) // LLDPE(50㎛)
    OPET(12㎛) // AL(9㎛) // CPP(50㎛)