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PVC Strip Curtains for Cold Rooms & Freezers UK
Not all PVC strip curtains work in cold environments. Standard-grade PVC becomes brittle and rigid below -5°C — making it ineffective as a seal and prone to cracking. For cold rooms and freezers, you need Polar Grade PVC.
Why Standard PVC Fails in Cold Rooms
Standard PVC is plasticised with compounds that harden at low temperatures. Below -5°C, standard strips lose flexibility, crack at the fold points, and fail to return to the closed position after contact. In a walk-in chiller or blast freezer, this means:
- Warm air ingress — raising energy bills
- Temperature fluctuation — risking food safety compliance
- Condensation build-up at the entrance
- Strip cracking and breakage — leading to replacement costs
Polar Grade PVC — The Right Solution
Our Polar Grade PVC Strip Curtains remain fully flexible down to -30°C. Formulated with cold-weather plasticisers, they maintain their seal and return to position even in blast freezer environments.
- Temperature range: -30°C to +5°C optimal; functional to -35°C
- Flexibility at -20°C: Full — strips drape naturally and return to position
- Food safe: BPA-free, suitable for food contact environments
- Clarity: High — maintains visibility through the curtain
Cold Room vs Freezer — What's the Difference?
| Environment | Temperature | Recommended PVC Grade |
|---|---|---|
| Chilled display / walk-in chiller | 0°C to +5°C | Polar Grade (standard clear also acceptable) |
| Cold room / refrigerated store | -5°C to 0°C | Polar Grade — essential |
| Freezer / deep freeze | -18°C to -10°C | Polar Grade — essential |
| Blast freezer | -35°C to -20°C | Polar Grade — essential |
Overlap Recommendations for Cold Rooms
For cold stores and freezers, we recommend 80% overlap minimum. This maximises the thermal seal and minimises warm air ingress with each pass-through.
Anti-Static Cold Room Curtains
Walk-in freezers and cold rooms can generate static electricity due to the dry, cold air. For environments with static-sensitive equipment (packaging lines, electronic components), our Anti-Static Cold Room Strip Curtain Kits provide combined polar-grade flexibility with ESD dissipation.
HACCP Compliance
PVC strip curtains on cold room and chiller entrances contribute to HACCP zone separation — creating a physical barrier between ambient and temperature-controlled areas. Polar Grade PVC is food-safe and compatible with all standard food-safe sanitisers.
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