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| Product Name | Parafilm Laboratory Sealing Film, Stretchable |
| Catalog No. | IGM-HMM-0060 |
| Description | Stretchable, self-sealing, thermoplastic laboratory sealing film for general laboratory containment. Molds securely around irregular shapes, tubes, flasks, and containers. Moisture-resistant and gas-permeable to a limited degree providing breathable yet protective seal. |
| Intended Use | Versatile laboratory sealing for test tubes, flasks, beakers, Petri dishes, and irregularly shaped containers. Temporary closure for incubation, short-term storage, and protection of open vessels from airborne contamination and evaporation. |
| Principle / Technology | Thermoplastic paraffin-polyolefin blend film that stretches up to 200% of original dimensions, conforming to vessel contours. Self-sealing property when stretched and overlapped creates semi-permeable barrier. Non-toxic formulation suitable for direct contact with culture vessels containing living organisms. |
| Detection Method | Moisture vapor transmission per ASTM E96; oxygen permeability; elongation at break; tensile strength; self-sealing overlap test |
| Sample Type | Applied as covering for open culture vessels, tube racks, multiwell plates, and customized laboratory containers |
| Performance Range / Specifications | Elongation 200% at break; thickness 0.127 mm (5 mil); width 50 mm or 100 mm; length 38 m per roll; operating temperature -20 C to 55 C |
| Sensitivity / LOD | Non-toxic by USP <87> cytotoxicity assay; no detectable leachates affecting mammalian cell growth; endotoxin below detection limit |
| Specificity | No detectable DNA, RNA, or protein contamination from film; no PCR inhibition from film contact |
| Reaction Conditions / Protocol | Cut desired length from roll; stretch film while wrapping around vessel opening or tube cap; overlap and press to create self-sealed bond; remove and discard after single use. |
| Components / Formulation | Paraffin wax and polyolefin blend thermoplastic film; non-toxic formulation; no plasticizers, phthalates, or latex components |
| Storage Conditions | 15-25 C; store in original dispenser box away from heat sources and direct sunlight |
| Shelf Life | 36 months from manufacture |
| Package Specifications | 1 roll per dispenser box (38 m x 50 mm or 38 m x 100 mm); 12 rolls per case |
| Product Form | Stretchable sealing film on paper core in cardboard dispensing box with cutting edge |
| Quality Control | Film thickness per ASTM D374; tensile strength per ASTM D882; elongation per ASTM D882; cytotoxicity per USP <87>; bioburden monitoring |
| Key Features | Stretchable and self-sealing; molds to irregular shapes; moisture resistant; gas permeable to limited degree; removable without residue; non-toxic formulation |
| Purity | Non-toxic laboratory grade; certified free of phthalates, BPA, and latex; non-cytotoxic; endotoxin-free |
| Concentration | N/A |
| Activity / Unit Definition | N/A |
| Molecular Weight | N/A |
| Source / Origin | Thermoplastic paraffin-polyolefin formulation; manufactured in ISO 9001 certified facility; rolled on clean paper core in controlled environment |
| pH Range / Optimal pH | Inert across pH 1-14 for aqueous contact; not suitable for prolonged contact with organic solvents; limited resistance to strong acids and oxidizing agents |
| Shipping Conditions | Ambient temperature; rolls packed in dispensing boxes and corrugated master cartons; protect from temperatures above 40 C which may cause film relaxation |
| Expiration Date / Stability | 3 years from manufacture; film pliability and self-sealing properties maintained when stored at recommended conditions |
| Regulatory / Compliance | ISO 9001:2015; USP <87> cytotoxicity compliant; FDA 21 CFR 175.300 for resinous and polymeric coatings; non-hazardous per OSHA 29 CFR 1910.1200 |
| Compatibility | Adheres to glass, metal, plastic, and itself; suitable for sealing test tubes, Erlenmeyer flasks, beakers, graduated cylinders, multiwell plates; compatible with incubation at 37 C with 5% CO2 humidity |
| Recommended Buffer System | Inert to water, saline, buffer solutions, culture media; not recommended for direct contact with organic solvents (chloroform, acetone, toluene, xylene) which may dissolve film |
| Application Notes / Precautions | Stretch film to 1.5-2x its width for optimal sealing and self-adhesion; smooth film edges onto vessel surface to eliminate gaps; do not use for long-term (>72 hour) liquid immersion or as primary seal for volatile solvent containers; remove film before autoclaving vessel contents |
| Batch-to-Batch Consistency | Film thickness +/- 0.01 mm across roll width; tensile strength within specification per production lot; elongation >180% at break on batch release testing per ASTM D882 |
For research use only, not for clinical use.
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