K-Vac Metallised Vacuum Seal Bags (Gusseted)

Both are metallised multilayer bags that work with external sealers and chamber machines. The I-Vac is specifically engineered for electronic component protection — it meets ESD, EMI shielding, and MIL-spec standards for electrostatic discharge and moisture barrier performance. The K-Vac is a food-grade product optimised for aroma retention and light protection in dry goods. Different material compositions, different certifications, different applications.

The R-Vac is a flat, clear, embossed PA/PE bag for food products where visibility and freezer performance are the priority. The K-Vac is a gusseted, metallised PET/PE bag for aromatic and light-sensitive dry goods where the product needs to hold its volume, block light, and retain aroma over an extended shelf life. The two products serve different packaging functions entirely.

All LAVA vacuum packaging machines seal the K-Vac correctly. The open side of the bag sits across the sealing bar in the same way as a flat bag — the gusseted body folds flat enough to position across the sealing strip. For non-LAVA machines, confirm compatibility with metallised composite foil. The sealing bar needs to reach sufficient temperature to weld through the PET/PE composite material cleanly.

Yes. The K-Vac is one of two bags in the LAVA range (alongside the I-Vac) that is compatible with chamber vacuum packers, not just external sealers.

Yes. The metallised barrier runs through the film construction, making the bag fully opaque on both sides — you cannot see the contents through the bag from the outside. For products sold at retail or stored where visual identification matters, consider printing or labelling the bags after sealing.