VF150 Performance
Anti-fog concentrate for blown and cast film applications
The surface energy of polyolefin film and water are very different because of
their very different molecular structures.
Water forms round drops on the surface of polyolefin film because of its
tendency to associate with itself rather then interacting with the film;
spreading over the surface.
Antifog concentrates contain surface-active additives whose molecular
structure is partially like polyolefin resin and partially like water. They're
miscible with the film and migrate to the film surface.
The migration tendency of the additive is effected by the
- specific type of resin i.e. polyethylene vs. polypropylene
- type of film surface i.e. air on one side and different types of tie layers
on the other side
- film thickness.
Polyvel designed antifog concentrates to minimize
the amount needed to form an effective surface layer in the shortest time. The
amount is one-third to one-half of the amount needed with other antifog agents.
This minimizes or eliminates problems associated with other critical surface
effects such as heat sealability, printing, slip and lamination.
VF150 requires 67% less than a competitive product for excellent rating.
Lower use level equals higher cost savings.
VF150 requires 50% less than a competitive product for good rating. Lower use
level equals higher cost savings.
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