Variant Stream


Thermal Conservation Technologies has developed a rapid and inexpensive method for evaluating the permeability of vacuum insulation panel (VIP) envelopes. The usual turnaround time is approximately 3-5 business days. Current testing methods of the permeation do not take into account that the VIP envelope is under considerable stress in a VIP. Measurements from a film under “High stress” and “No stress” is shown below.


We developed additional tests that can measure the impact of stress or exposure to different ambients on the permeability, as well as the integrated permeability through an entire VIP envelope(including corners and seams). For more information about these services please contact us at