The smarter way to seal your science. Rely on Seal-R-Film® to reduce waste, minimize contamination and sample loss, and increase the effectiveness of experiments.
Say goodbye to spills, evaporation, and questionable wraps. Seal-R-Film® is a flexible, self-sealing laboratory film designed to stretch, cling, and stay put — even on irregular shapes. From microbiology and mycology to general lab use, Seal-R-Film® provides a cleaner, safer, more consistent seal.

No more spilling, evaporation and contamination! Seal-R-Film® sealing film seals beakers, flasks and other vessels. It always fits, even with irregular shapes.

Why Choose Seal-R-Film®?

Self-Sealing & Stretchable: Expands up to 5X its width and stretches 3X its length to form a snug seal around beakers, flasks, and irregular shapes — using about 1/3 less material compared to alternatives!
Moisture Resistant & Hydrophobic: Minimizes evaporation and prevents leakage
Clear & Ultraflexible: Easy to apply and allows quick inspection of container contents with no visible stretch marks
Easy to Dispense: Unrolls smoothly and peels easily from the backing paper
Available Dispenser Box: Lets you select the exact length needed — no separate cutter required
Superior Adhesion: Either side of Seal-R-Film adheres to itself and labware
No Leakage: Provides a secure wrap that keeps contents safely inside
Contamination Control: Keeps your samples intact and protected
Certified & Quality Assured: Barcoded lot traceability on every roll for added quality assurance
Reliable Supply Chain: Well-established, extensive manufacturing and logistics infrastructure eliminates extended inventory issues
Dispenser Box with Built-In Cutter

Seal-R-Film® 4″ wide rolls are also available in a unique dispenser box. The box includes a slide cutter that facilitates quick and simple cutting of the film. Printed measurements at 1.2″ and 2″ allow for precise lengths of film to be cut for use. This unique packaging eliminates the need to purchase additional dispensers.