TEM Products
TEM Grids with Continuous Formvar/Carbon Film
TEM grids with continuous Formvar film stabilized by a thin carbon layer, providing excellent mechanical support and conductivity for routine and biological applications.
Description
🔹 Description
These TEM grids feature a continuous Formvar support film reinforced with a thin carbon layer. The Formvar film provides strong mechanical support, while the carbon coating improves electrical conductivity and beam stability.
This combination makes Formvar/carbon grids one of the most widely used support films for TEM, particularly for ultrathin sections and biological specimens.
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🔹 Specifications
| Product: | Transmission electron microscopy (TEM) grids / copper (Cu) grids |
| Model: | TEM grids with continuous carbon / Formvar supporting film |
| Grid diameter: |
3.05 mm |
| Grid type: |
• Standard option is Cu grid, 50 -600 mesh, with square or hexagonal mesh • Other grids available |
| Supporting film: |
Continuous supporting film • Carbon   ~7-10 nm • Formvar   ~20 -30 nm |
| Remarks: | Pros • Price low • Good for low magnification imaging Cons Contact Us if you have trouble with the selection. |
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🔹 Film Structure
Typical multilayer structure:
- Top layer: Carbon (~1–30 nm)
- Middle layer: Formvar (~5–50 nm)
- Bottom layer: Metal grid
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🔹 Key Features
- Strong mechanical support from Formvar film
- Improved conductivity from carbon coating
- Reduced charging effects under electron beam
- Suitable for ultrathin sections and fragile samples
- More durable than pure carbon films
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🔹 Applications
- Ultrathin section TEM analysis
- Biological samples (cells, tissues, proteins)
- Polymer and soft material studies
- Routine TEM sample preparation
- Applications requiring repeated handling
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🔹 Formvar/Carbon vs Carbon vs Ultrathin
| Type | Features |
|---|---|
| Formvar/Carbon | Strong support, easy handling, most versatile |
| Pure Carbon | Better conductivity, lower background |
| Ultrathin Carbon | Highest resolution, lowest background |
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