Bosfilm — 21

Gift sets, shampoo bottles, perfume boxes. The glossy finish creates a premium “retail look” without needing an additional cardboard sleeve.

Professional moving companies prefer Bosfilm 21 because it adheres to plastic wrap, wood, and metal filing cabinets, not just cardboard. It leaves minimal residue when removed within a reasonable timeframe.

Flat-pack furniture contains sharp edges and heavy weight. Bosfilm 21’s high tensile strength prevents the tape from cutting on box corners—a common failure point for thinner tapes. bosfilm 21

Unlike PVC, Bosfilm 21 requires hot air circulation rather than direct IR radiation. Recommended tunnel zones:

The total tunnel time should be 3–6 seconds. Overheating will cause film brittleness; underheating leaves wrinkles. Gift sets, shampoo bottles, perfume boxes

Myth 1: "Bosfilm 21 is just a brand name for any shrink film."
Reality: No. It refers to a specific specification of cross-linked polyolefin. Substituting a cheaper generic POF will often result in lower shrinkage balance and weaker seals.

Myth 2: "It can be used with impulse hand sealers only."
Reality: While compatible, best results come from continuous band sealers or L-bar machines with a shrink tunnel. Hand sealers lack the uniform heat distribution for large packages. The total tunnel time should be 3–6 seconds

Myth 3: "Thicker is always better."
Reality: For Bosfilm 21, 15–19 microns handles most medium-weight products (up to 5 kg). Thicker films (30 microns) can actually shrink unevenly unless tunnel conditions are perfectly tuned.