Formvar-Carbon Double Film TEM Grids

Introduction

Formvar-Carbon Double Film TEM Grids combine the mechanical flexibility of a continuous Formvar support layer with the enhanced beam stability of a continuous carbon coating. This dual-layer configuration provides improved structural integrity, reduced film breakage, and greater resistance to electron beam damage during transmission electron microscopy (TEM) analysis.

These grids are particularly well suited for demanding biological and materials science applications requiring reliable specimen support and consistent imaging performance.

Structure and Film Configuration

The double-film structure consists of:

• A continuous Formvar base film
• A thin continuous carbon reinforcement layer

The Formvar layer provides mechanical resilience and smooth surface coverage, while the carbon layer enhances electrical conductivity and beam stability.

This combination reduces charging effects and improves overall imaging reliability compared to single-film polymer supports.

Key Advantages

Formvar-Carbon Double Film TEM Grids offer:

• Improved mechanical strength
• Enhanced resistance to beam-induced damage
• Reduced specimen charging
• Better film durability during handling
• Stable support for ultrathin sections

Compared to continuous carbon alone, the Formvar base increases flexibility. Compared to Formvar alone, the carbon layer improves stability and conductivity.

Available Base Grid Materials

• Copper TEM grids
• Molybdenum TEM grids

Multiple mesh sizes (e.g., 200, 300, 400 mesh) are available to match your imaging requirements. Copper and molybdenum substrates are available as standard. Additional base materials - including tungsten, nickel, titanium, and nylon - are available upon request. Please contact us to discuss custom grid configurations.

For enhanced beam stability, explore our:

• Formvar-Carbon Double Film TEM Grids
• Continuous Carbon Film TEM Grids

For applications requiring perforated support, explore our:

• Holey Carbon Film TEM Grids
• Holey Carbon Film TEM Grids with Continuous Carbon Coating
• Lacey Carbon Film TEM Grids
• Lacey Carbon Film TEM Grids with Continuous Carbon Coating