Porvair Sciences Ultraseal™ Clear Seal Perf - Sterile Sheets SF11078SS

Ultraseal™ Clear Seal Perf - Sterile Sheets SF11078SS are clear, heat-sealable sterile sheets designed to provide a secure, non-adhesive seal for microplates while allowing controlled gas exchange. The perforated film preserves sample sterility and reduces evaporation for short-term incubation, cell culture, seed and insect storage, and other applications requiring gas permeability combined with evaporation control. The sheets are compatible with common plate materials and withstand a wide seal integrity temperature range.

Key Features:

• Sheet size: 125 mm x 78 mm
• Format: Sheets, supplied as 100 sterile sheets per pack
• Material: Clear perforated film; non-peelable
• Seal type and recommended sealing: Heat seal; recommended 180°C for 2 seconds
• Temperature range (seal integrity): -80°C to 80°C (usable to 110°C with pressurised PCR heated lids)
• Compatibility: Compatible with polypropylene (PP), polystyrene (PS), polyethylene (PE) and cyclic olefin copolymer (COC) plates
• Properties: Gas permeable via 3 mm perforations; moderate solvent resistance; good optical clarity

Advantages:

• Maintains sterility while permitting gas exchange through perforations, enabling short-term incubations and biological storage
• Reduces evaporation compared with using lids, improving sample integrity during incubation
• Wide temperature tolerance allows use from deep-freeze conditions to elevated temperatures with appropriate equipment
• Clear film provides good optical quality for visual inspection or optical assays where transparency is required