Formvar/Carbon Films on F1 Copper Grids (Pack of 25)

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Molecular Formula Formvar: (C3H6O)n; Carbon: C; Copper: Cu
Melting Point Formvar: ~160C, Carbon: Sublimates at >3500C
Structural Formula Formvar: (CH2CHOCH2O)n; Carbon and Copper: elemental
HS Code 90279090
Ph Level Neutral
Smell Odorless
Other Names Formvar-coated Carbon support film on grid
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Formvar/Carbon Films on F1 Copper Grids (Pack of 25) Product Specifications

Molecular Formula Formvar: (C3H6O)n; Carbon: C; Copper: Cu
Type Ultrathin film-coated copper grids
Melting Point Formvar: ~160C, Carbon: Sublimates at >3500C
Classification TEM consumable/laboratory accessory
Application Transmission Electron Microscopy (TEM) specimen support
Structural Formula Formvar: (CH2CHOCH2O)n; Carbon and Copper: elemental
HS Code 90279090
Ph Level Neutral
Grade Analytical grade for electron microscopy use
Other Names Formvar-coated Carbon support film on grid
Smell Odorless
Main Material Formvar (polyvinyl formal) film reinforced with ultra-thin carbon layer on copper grid
Poisonous Yes
Storage Store in dry, dust-free container at room temperature
Purity High-purity Formvar and Carbon; Copper grid: 99.9%
Refractive Rate Not specified for film in assembled product
Chemical Name Polyvinyl formal (Formvar) with Carbon
Molecular Weight Formvar: variable polymer; Carbon: 12.01; Copper: 63.55
Density 8.96 Gram per cubic centimeter(g/cm3)
Solubility Insoluble in water, soluble in organic solvents such as chloroform and ether
Shape Round grid
Usage Support film for TEM grids to provide specimen mounting stability and improved conductivity
Standard Electron microscopy grade
Form Thin film on mesh grid
CAS No 9002-89-5 (Formvar), 7440-44-0 (Carbon), 7440-50-8 (Copper)

Formvar/Carbon Films on F1 Copper Grids (Pack of 25) Trade Information

Payment Terms Telegraphic Transfer (T/T), Paypal, Cash in Advance (CID), Cheque
Main Domestic Market All India

Product Description

These thin cast films of Formvar have been strengthened with the addition of a layer of evaporated carbon on copper grids. The composite films have extra resilience and strength compared with carbon films. They are recommended for use where the grid has to undergo several processing steps during specimen preparation.

Supplied either in packs of 25 or 50 grids in a grid box depending on each particular product.

Formvar carbon support films can be applied to other grid sizes, material or type. Further details available on request.

Ultra-Thin, Continuous Support Films for Clear Imaging

The Formvar/Carbon-coated copper grids feature a highly uniform, continuous film that covers the entire mesh area. This stability supports delicate specimens for accurate imaging and high electron transparency. The carbon coating enhances conductivity, minimizing charging effects and improving data reliability during TEM analysis.

Engineered for Compatibility and Durability

Each grid is manufactured from 99.9% pure copper and designed to fit all standard TEM holders. The films are smooth, wrinkle-free, and resistant to pinholes, ensuring long-lasting performance over a 24-month shelf life when stored properly. The packaging safeguards grids from dust, moisture, and handling damage.

Ready-to-Use and Safe for Laboratory Environments

Delivered in a foam-lined grid box, these grids are ready for immediate TEM sample preparation. The non-toxic nature of Formvar and carbon under normal conditions, combined with solvent compatibility for film manipulation, offers a safe and adaptable solution for electron microscopy workflows.

FAQs of Formvar/Carbon Films on F1 Copper Grids (Pack of 25):

Q: How do I prepare Formvar/Carbon Films on F1 Copper Grids for TEM specimen mounting?

A: Handle grids with clean, anti-static tweezers and place them directly onto grid holders. Secure your specimen on the film using compatible techniques; the support film is insoluble in water but can be floated off in organic solvents like chloroform if needed.

Q: What benefits do Formvar/Carbon Films provide compared to uncoated TEM grids?

A: Formvar/Carbon Films deliver improved specimen support and enhanced conductivity, reducing charging artifacts in electron microscopy. The even, ultrathin film ensures consistent imaging quality and stability for fragile samples.

Q: When should I use these grids, and for what types of samples are they suitable?

A: These grids are ideal for mounting small or delicate specimens in analytical and research TEM applications, especially when electron transparency and conductivity are critical. They are suitable for biological sections, nanoparticles, and other fine materials.

Q: Where should I store unused Formvar/Carbon-coated TEM grids, and what is the recommended shelf life?

A: Store grids in their original foam-lined grid box in a dry, dust-free environment at room temperature. Properly stored, these grids maintain optimal quality for up to 24 months.

Q: What is the process for removing the Formvar film if necessary?

A: The Formvar film can be dissolved by floating the grid on organic solvents like chloroform or ether. This is useful if you need only the carbon layer as a support for specific sample preparations.

Q: Are these grids compatible with all types of Transmission Electron Microscopes?

A: Yes, the 3.05 mm diameter is the standard size for TEM grids, ensuring compatibility with all major transmission electron microscope models.

Q: What safety and handling precautions should I take with these TEM grids?

A: The grids are non-toxic under typical TEM usage, but avoid direct skin contact with films and always use tweezers for handling to prevent contamination and physical damage to the fragile support films.

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