Parafilm
Product Code : EL-BLS-10951
Last updated: 6 October 2026
Quick answer: A moisture-proof, semitransparent flexible thermoplastic film for sealing test tubes, flasks and other containers, including irregular surfaces. Supplied as a 4 inch x 125 foot roll. Resistant to alcohol, gases and most acids.
This film does one job that nothing else does as well: it stretches to seal a container whose rim is not flat or not standard. The listing states it seals even irregular surfaces with ease, which covers the flasks, beakers and odd-necked vessels that no stopper fits.
The published properties are moisture-proof, semitransparent and flexible, with resistance to alcohol, gases and most acids. Semitransparent matters in practice because you can see whether a seal has lifted without breaking it. The roll is 4 inches wide by 125 feet long.
Note the limit in the wording: most acids, not all, and no temperature range is given. The film softens and loses its seal when warm, so confirm the working temperature range and the specific chemical exclusions before using it on anything volatile or heated, and do not assume it is autoclavable.
Note: Parafilm is a registered trade name. The generic description for this material is a thermoplastic laboratory sealing film. The product name has been left as the catalogue has it.
Technical specifications
Specification | As published |
Product type | Thermoplastic laboratory sealing film |
Form | 4 in x 125 ft roll |
Appearance | Semitransparent |
Properties, as stated | Moisture-proof, flexible thermoplastic |
Resistance, as stated | Alcohol, gases and most acids |
Stated use | Sealing test tubes, flasks and other containers, including irregular surfaces |
Supplied from | Ambala, Haryana, India |
Only what this listing publishes is recorded above. The working temperature range, which acids are excluded from the resistance claim, autoclavability and the film thickness are not stated. Confirm these before using the film with heated or volatile contents.
Range and ordering
This item belongs to the Biotechnology Lab Supplies family within Biotechnology Equipment and Labware, part of the Biotechnology range. Packaged teaching kits are listed under Biotechnology Kits. Bulk, tender and OEM quantities are handled through lab tenders and OEM orders; use the contact page to request a quotation or any specification noted above.