What is a barrier bag?
A barrier bag is one which contains non-permeable materials such nylon or metal foil. • Why can’t Polyethylene or Polypropylene bags hold vacuum for long term storage? These materials are both porous, and allow oxygen and moisture to slowly re-enter the bag. • Do all Accu-Seal Heat Sealers require an external air supply? No. Our model 540, carries an internal compressor! Also our model 20 is a manual sealer. Further, if you do not have a compressor it is possible to purchase one through Accu-Seal. • Do you calibrate Heat Sealing machines? Accu-Seal can arrange for the Initial calibration and Annual calibration of Medical Heat Sealing machine models: 8000, 830, 730, 630, 530/540, 635, 630CH. Accu-Seal uses an independent metrology company that is ISO certified for all calibrations. • How would I know the appropriate heat and cool times to set my Accu-Seal Heat Sealer for the best quality seals? To help ensure the best quality seals, Accu-Seal requests that you send sample pouch or bag m