FL0204W21 is a 50mic Glossy white BOPP film on a 60gsm white glassine liner, built for flexographic presses, in roll form. This page gives you the construction as we actually coat it, where it belongs, and what to pick instead when it does not.
Construction page · last verified 2026-10-19 · published in English · technical questions: contact the lab
BOPP is a biaxially oriented polypropylene film. Orienting it in both directions is what gives the film its stiffness and its dimensional stability, so a thin BOPP label still lies flat on the pack and still feeds reliably at line speed. It is waterproof, it does not tear the way paper does, and it accepts a topcoat that lets UV and water-based inks key to the surface instead of sitting on it.
Underneath it sits freezer-grade adhesive. The liner is a glassine — a supercalendered paper with a dense, closed surface. Glassine releases cleanly at high converting speeds, it is the cheapest liner that does the job, and it is the default for roll-fed work.
This construction sits in the Flexo family, which we build for flexographic presses, in roll form. The family grouping is not marketing shorthand — it is how the topcoat is chosen.
| Material code | FL0204W21 |
|---|---|
| Facestock | 50mic Glossy white BOPP film |
| Adhesive | Freezer-grade adhesive |
| Liner | 60gsm white glassine liner |
| Print platform | Flexo |
| Series | Self Adhesive PP Film |
| Supply form | Jumbo roll, slit roll — sheeted on request |
Applied before the product goes down to temperature, the adhesive has to stay put while the pack contracts and while condensation forms on the surface. This is the construction we supply for that first cold contact.
Cartons that go from a cold store into a display freezer and back again see repeated temperature swings. The freezer-grade system is chosen for that cycle rather than for ambient shelf work.
Shipping and traceability labels applied at the cold store exit, onto surfaces that are already below ambient and often damp. Standard permanent adhesive is the wrong tool here.
The freezer-grade system is specified for cold application and cold service. Using it on ordinary ambient labelling adds cost for no benefit.
This is a permanent cold-chain adhesive, not a repositionable one. If the label has to move, look at the removable range instead.
BOPP does not absorb ink the way paper does. The press needs its tension, heat and ink settings confirmed for film before the first production run.
The Self Adhesive PP Film series holds 8 constructions in our catalogue. They share the same facestock family, so the differences that matter are adhesive system and liner — and those two decide which jobs each code wins.
| Code | Facestock | Adhesive | Liner |
|---|---|---|---|
| FL0204W21 | 50mic Glossy white BOPP film | Freezer-grade adhesive | 60gsm white glassine liner |
| FL0201W21 | 100mic Glossy white BOPP film | Removable | 80gsm white glassine liner |
| FL0202W21 | 100mic Glossy white BOPP film | Removable | 80gsm white glassine liner |
| FL0203W21 | 75mic Glossy white BOPP film | Removable | 80gsm white glassine liner |
| FL0205W21 | 75mic Glossy white BOPP film | Removable | 60gsm white glassine liner |
| FL0206W21 | 100mic Glossy white BOPP film | Solvent acrylic adhesive | 60gsm white glassine liner |
| FL0207W21 | 25mic Glossy white BOPP film | Removable | 60gsm white glassine liner |
| FL0208W21 | 75mic Glossy white BOPP film | Solvent acrylic adhesive | 60gsm white glassine liner |
Buyers often ask the reverse question: the construction works, but the press changes. These are the codes in other families built on the same facestock type.
| Family | Code | Facestock | Adhesive |
|---|---|---|---|
| UV Inkjet | UV0201W21 | 36mic Glossy white BOPP film | 21±3 mic (ISO 2808) — adhesive coat weight; system confirmed on the TDS |
| UV Inkjet | UV0207W21 | 60mic UV Inkjet Glossy White PP Film | Water-based acrylic adhesive |
| UV Inkjet | UV0301W21 | 36mic Matte white BOPP film | 21 ± 3 mic (ISO 2808) — adhesive coat weight; system confirmed on the TDS |
| UV Inkjet | UV0307W21 | 75mic UV Inkjet Matte White PP Paper | Water-based acrylic adhesive |
Answered from the construction data, not from a brochure.
Thickness, surface finish and treatment explained for the film on this construction.
How cold-chain constructions are specified, and why ambient adhesive fails there.
What the liner contributes to release, converting speed and moisture tolerance.
The full data sheet index for this press family.
The full Flexo family with the interactive filter.
All 62 published constructions side by side, filterable by press and material.
How the 115 constructions are organised, and which family fits your press.